Compliance Driven Initiative
- Anand Nerurkar
- Sep 29
- 36 min read
🔑 1. Business Context (Set the Stage)
Interviewers expect you to start with "why" before jumping into tech.
Business Drivers
Meet global regulatory obligations (FATF, SEBI, RBI, FinCEN, EU AMLD)
Reduce financial crime risk, fraud losses, and reputational damage
Improve straight-through onboarding while ensuring compliance
Enable scalability for high-volume onboarding (retail/corporate customers)
Key Stakeholders
Compliance Officers (FCU, AML teams)
Operations & KYC Teams
Risk & Audit
Technology Delivery Teams
Regulators (SEBI, FIU-IND, etc.)
🏗 2. End-to-End Solution Architecture
🔹 Functional Flow
Customer Onboarding / Data Collection
Digital forms (web/mobile)
Document upload (ID, Proof of Address)
Real-time OCR & data validation
Integration with external KYC registries (CKYC, PAN, Aadhaar XML/Offline KYC, etc.)
Customer Due Diligence (CDD / e-KYC)
Risk scoring engine (customer type, geography, product risk)
PEP & Sanctions Screening (OFAC, UN, EU lists)
Adverse Media Screening (via APIs from Refinitiv, Dow Jones)
Customer 360 + Profile Storage
Golden Record in MDM/CDP
Store KYC attributes + risk category + onboarding decision
AML Transaction Monitoring (Post-Onboarding)
Kafka-based real-time ingestion of transactions
AML rules engine (e.g., Actimize, SAS AML, FICO, in-house)
Scenarios: structuring, smurfing, unusual patterns
Generate alerts → case management → SAR/STR filing
Financial Crime Case Management
Single UI for compliance analysts
Workflow: triage, disposition, escalation, SAR reporting
Regulatory Reporting
FIU-IND STR, CTR, NTR reporting automation
Audit trail & data lineage (regulatory must-have)
🔹 High-Level Technology Architecture (Microservices + Cloud)
Layer | Solutioning Approach |
Channel Layer | Mobile App, Web App, Branch Portal |
API Layer | API Gateway (rate limiting, auth), REST/GraphQL |
Microservices | KYC Service, Screening Service, Risk Engine, Case Mgmt Service |
Integration | Kafka / Event Hub (real-time), ESB (if legacy integration needed) |
Screening & TM | Vendor APIs (Refinitiv, Dow Jones) or internal ML models |
Data Stores | RDBMS (customer master), NoSQL (screening logs), Data Lake (audit) |
Analytics & ML | Risk score tuning, False Positive reduction (ML-based) |
Security | Azure AD / OAuth2, Data Masking, Encryption-at-rest & in-transit |
Observability | ELK / Prometheus / Grafana for monitoring, audit logging |
DevOps | Azure DevOps pipelines, IaC (Terraform/ARM), Blue-Green deploy |
🎯 3. Key Delivery Considerations
Data Quality: KYC depends heavily on clean data (normalize name/DOB/address).
Integration Complexity: CKYC, credit bureau, sanctions lists, fraud systems.
Latency: Real-time checks should not slow onboarding → use async patterns where possible.
Alert Fatigue: Use ML to tune thresholds, reduce false positives.
Scalability: Cloud-native microservices, containerized on AKS/EKS/GKE.
Compliance: Full audit trail, data lineage, regulator reporting ready.
⚠️ 4. Risks & Mitigation (Mention in Interview)
Risk | Mitigation |
False Positives Overload | ML models to tune alert thresholds, dynamic rules calibration |
Regulatory Non-Compliance | Regular AML rule library updates, automated testing, compliance sign-off |
Data Privacy Violations | Masking, tokenization, data retention policies |
Performance Bottlenecks | Event-driven architecture, caching screening results |
Change Fatigue in Ops | Training, sandbox environments, phased rollout |
Audit Gaps | Immutable logs, end-to-end data lineage |
💬 5. Interview Pitch (Sample Answer)
"For KYC/CDD and AML TM initiatives, I follow a structured approach — starting with business capability mapping (onboarding, CDD, screening, TM, case management), then defining a cloud-native microservices architecture with event-driven data flow.I ensure integration with CKYC, sanctions lists, and case management tools, with special focus on reducing false positives through ML-based alert scoring.From a delivery standpoint, I set up DevSecOps pipelines, automate regulatory reporting, and establish strong governance — ensuring regulatory compliance, scalability, and measurable reduction in operational overhead."
Perfect —This shows KYC/CDD + AML TM + Case Management + Regulatory Reporting in an event-driven microservices architecture.
🏗 KYC / CDD / AML TM Solution Architecture (Text Flow)
[Customer Channel Layer]
├── Web / Mobile App
├── Branch Portal
└── API Gateway (AuthN/AuthZ, Rate Limits)
↓ (REST/GraphQL API Calls)
[KYC Orchestration Service]
├── Create Correlation ID & Idempotency Key
├── Validate Input (Name, DOB, ID Docs)
├── Emit Event → [Topic: kyc.initiated]
↓ (Kafka Event Bus)
[KYC Microservice Consumers]
├── Document Verification Service
│ ├─ OCR + Image Quality Check
│ └─ Store results → Redis Cache + Cosmos DB
│ └─ Emit Event → [Topic: kyc.doc.verified]
├── CKYC Integration Service
│ ├─ Fetch CKYC record (if exists)
│ └─ Emit Event → [Topic: kyc.ckyc.response]
├── Screening Service
│ ├─ PEP/Sanctions Screening (OFAC/UN/EU lists)
│ ├─ Adverse Media Check (Vendor API)
│ └─ Emit Event → [Topic: kyc.screening.completed]
↓ (Events Aggregated in Orchestration Layer)
[KYC Decision Engine]
├── Apply Risk Rules (CDD Level: Low/Med/High)
├── Calculate Composite Risk Score
└── Emit Event → [Topic: kyc.completed]
↓
[Customer 360 / Golden Record Service]
├── Write final profile to Master Data Store
├── Maintain history (audit)
└── Emit Event → [Topic: customer.onboarded]
↓
[AML Transaction Monitoring Service]
├── Subscribe to [Topic: transactions.posted]
├── Apply AML Scenarios (structuring, smurfing, high-value transfers)
├── Generate Alerts → [Topic: aml.alert.generated]
↓
[Case Management Service]
├── Create Case in Workflow Tool
├── Assign to Compliance Analyst
└── Capture Analyst Disposition (True Positive / False Positive)
↓
[Regulatory Reporting Service]
├── Aggregate confirmed alerts
├── Prepare STR/CTR/NTR as per FIU-IND schema
└── Securely submit reports to regulator
↓
[Monitoring & Audit Layer]
├── ELK / Prometheus / Grafana dashboards
├── Immutable Event Log (for regulator audit)
└── Alerts on SLA breaches, failure patterns
✅ Key Talking Points When Explaining This Flow
Correlation ID + Idempotency: Guarantees duplicate prevention across async flow.
Event-Driven: Decouples services, supports high-volume onboarding with low latency.
Caching: Redis is used to avoid repeated CKYC/vendor calls, improving performance.
Risk Scoring: Flexible rule engine + ML-based false positive reduction.
Immutable Audit Logs: Every event is stored with timestamp → supports regulator inquiries.
RegTech-Ready: FIU-IND integration automated, avoiding manual SAR/CTR uploads.
Scalability: Microservices containerized on AKS/EKS/GKE with auto-scaling.
Excellent — let’s go deeper into real-time OCR/data validation and integration with external KYC registries (CKYC, PAN, Aadhaar XML/Offline KYC, etc.) so you can explain this end-to-end in solutioning terms during the interview.
🔹 1. Real-Time OCR & Data Validation
📌 Flow:
Customer uploads ID Proof (Aadhaar card, PAN card, Passport, Driving License).
OCR Service (AI/ML-based) extracts structured fields (Name, DOB, Address, ID number).
Can use Azure Form Recognizer, Google Vision API, AWS Textract, or on-prem Tesseract if regulatory restrictions apply.
Data Validation Layer:
Format check (DOB in DD/MM/YYYY, PAN = 10 chars with alphanumeric pattern).
Cross-field check (DOB must match age >18).
Against existing master data (duplicate detection).
Fraud & Tampering Detection:
Liveliness check (selfie + face match with ID).
Hash/signature validation for Aadhaar XML/PDF (UIDAI signed).
Watermark detection (for fake documents).
Storage & Caching:
Store OCR-extracted metadata in Cosmos DB / RDBMS.
Cache results in Redis to avoid reprocessing same doc.
Event Emission:
Emit event → [Topic: kyc.doc.verified] for orchestration.
✅ Key Interview Insight: Stress that OCR alone isn’t enough — you must validate data + detect fraud to make KYC robust.
🔹 2. Integration with External KYC Registries
Banks/AMCs must integrate with regulatory and government registries.
📌 Common Integrations:
CKYC (Central KYC Registry – CERSAI India)
Upload/download customer KYC records using CKYC APIs.
Deduplication: Search by PAN, DOB to avoid multiple KYC entries.
Store CKYC identifier in customer profile.
Regulatory: CKYC update events must be propagated downstream.
PAN Verification (NSDL/Income Tax API)
Real-time PAN validity check.
Match PAN holder’s name & DOB with application.
Prevent identity theft / invalid PAN usage.
Aadhaar Offline XML / e-KYC (UIDAI)
Offline XML: Customer downloads digitally signed Aadhaar XML from UIDAI.
Bank verifies XML signature + extracts Name/DOB/Address/Photo.
No biometric transmission (regulatory safe).
Aadhaar Masking: Only last 4 digits of Aadhaar number are stored (RBI/UIDAI compliant).
Other Registries / Bureau Integration
Voter ID validation (Election Commission API).
Passport validation (MEA integration, if available).
Credit Bureaus (CIBIL, Experian, Equifax, CRIF) for financial due diligence.
🔹 3. Event-Driven Integration Design
[KYC Orchestration Service]
→ Emit Event: kyc.initiated
↓
[OCR Service] → Emit: kyc.doc.extracted
[Validation Service] → Emit: kyc.doc.verified
[CKYC API Integration Service] → Emit: kyc.ckyc.response
[PAN API Integration Service] → Emit: kyc.pan.verified
[Aadhaar XML Parser Service] → Emit: kyc.aadhaar.verified
↓
[KYC Decision Engine]
→ Final Status: Approved / Rejected / Manual Review
✅ Key Interview Insight:
Explain that you decouple each registry integration as a separate microservice.
All services publish events into Kafka/Event Hub → Orchestration layer consumes & aggregates results.
This ensures loose coupling, resilience, and regulatory auditability.
🔹 4. Compliance & Security Controls
Data Privacy: Mask Aadhaar, PAN before persisting.
Encryption: All payloads encrypted in-transit (TLS 1.2+) and at-rest (AES-256).
Audit Trails: Every external API call logged (who, when, what).
Rate Limits & Retries: CKYC/PAN APIs may have throttling → implement retry/backoff patterns.
Immutable Logs: All verification results stored in Data Lake for regulator queries.
👉 In the interview, you can summarize:
"Our KYC solution supports real-time OCR and validation to prevent fraudulent or tampered documents. We integrate with CKYC, PAN, Aadhaar XML in an event-driven microservices architecture. Each registry is handled by a dedicated service, publishing events into Kafka for orchestration. This ensures resilience, auditability, and compliance with RBI/SEBI/UIDAI regulations."
This focuses specifically on OCR + CKYC + PAN + Aadhaar integration flow in a microservices + event-driven setup.
🏗 KYC Onboarding with OCR + CKYC + PAN + Aadhaar Integration
[Customer Channels]
┌───────────────────────────────┐
│ Web/Mobile App / Branch UI │
└──────────────┬────────────────┘
│ (API Call)
▼
[API Gateway / Auth Layer]
│
▼
[KYC Orchestration Service]
(Creates Correlation ID, Idempotency Key,
Publishes → Topic: kyc.initiated)
│
─────────────────────────────────────────────────────────
Event Bus (Kafka / Azure Event Hub)
─────────────────────────────────────────────────────────
│ │ │
▼ ▼ ▼
[OCR & Validation Service] [CKYC Service] [PAN Verification Service]
- Extracts Name/DOB/ID - Query CKYC API - Call NSDL/IT Dept API
- Validates format/rules - Get CKYC record - Match PAN Name & DOB
- Fraud checks (tampering) - Store CKYC ID - Validate PAN status
- Emit: kyc.doc.verified - Emit: kyc.ckyc.resp - Emit: kyc.pan.verified
│
▼
[Aadhaar XML Service]
- Validate UIDAI digital signature
- Extract Name/DOB/Address/Photo
- Mask Aadhaar number (last 4 digits only)
- Emit: kyc.aadhaar.verified
─────────────────────────────────────────────────────────
▼
[KYC Decision Engine]
- Aggregate all responses (OCR, CKYC, PAN, Aadhaar)
- Apply risk rules (CDD Level: Low/Med/High)
- Generate Final KYC Status:
→ Approved / Rejected / Manual Review
- Emit Event: kyc.completed
─────────────────────────────────────────────────────────
▼
[Customer 360 / Master Data Store]
- Store Golden Record (with CKYC ID, PAN, Aadhaar Ref)
- Immutable Audit Logs (Data Lake / Blockchain Log)
─────────────────────────────────────────────────────────
✅ Key Talking Points for Interview
Orchestration Service: Controls the flow, ensures idempotency (no duplicate KYC runs).
Event-Driven: Each registry (CKYC, PAN, Aadhaar) runs in parallel → reduces latency.
OCR Service: Uses AI/ML for real-time extraction + tamper detection.
Aadhaar XML: Fully offline, UIDAI-signed, regulatory compliant.
Decision Engine: Combines all results → auto-approve low-risk, escalate high-risk.
Audit Trail: Every step logged, regulator can trace data lineage end-to-end.
🎤 Interview Pitch (Text Walkthrough)
"Let me walk you through how we handle KYC onboarding with OCR, CKYC, PAN, and Aadhaar integration in a modern event-driven architecture.
Step 1 – Customer InitiationA customer submits their KYC documents via web, mobile, or branch channel. The request passes through an API Gateway where authentication, authorization, and rate limiting are applied. From there it goes into a KYC Orchestration Service, which creates a correlation ID and idempotency key to prevent duplicate processing. The orchestration service then publishes an event, for example kyc.initiated, onto Kafka or Azure Event Hub.
Step 2 – Parallel Microservices ProcessingDifferent microservices subscribe to this event and run in parallel.
The OCR & Validation Service extracts fields like name, DOB, and ID number, performs format checks, and runs tampering or fraud detection. Once complete, it emits a kyc.doc.verified event.
The CKYC Service integrates with the Central KYC Registry, searches for existing records, and returns a CKYC identifier, publishing kyc.ckyc.response.
The PAN Verification Service connects to NSDL or Income Tax APIs, validates the PAN, matches the name and DOB, and emits kyc.pan.verified.
The Aadhaar XML Service validates the UIDAI digital signature, extracts verified data, masks the Aadhaar number (showing only the last 4 digits), and publishes kyc.aadhaar.verified.
Step 3 – Aggregation and Risk AssessmentAll these results flow into the KYC Decision Engine. This service aggregates responses, applies business and compliance rules, and assigns a risk level — low, medium, or high CDD. It then decides whether the KYC is approved, rejected, or flagged for manual review, and emits a final kyc.completed event.
Step 4 – Customer 360 and Audit
Finally, the Customer 360 Service writes the golden customer record into the master data store, along with the CKYC ID, PAN, and Aadhaar references. At the same time, all transactions and events are written to an immutable audit log or data lake to ensure regulator-ready compliance and end-to-end data lineage.
SummarySo, this approach ensures that KYC checks are real-time, parallelized for performance, fully auditable for regulators, and compliant with CKYC, PAN, and Aadhaar requirements — all while being built on a microservices and Kafka event-driven foundation."
👉 This showcase technical depth (microservices, event-driven, idempotency, auditability) and domain expertise (CKYC, PAN, Aadhaar compliance, risk scoring) i
ChatGPT said:
🔟 Top Interview Q&A – KYC/CDD/AML Domain
1. How would you design a scalable KYC solution for millions of customers while ensuring compliance?
Answer:I would use an event-driven microservices architecture with Kafka or Event Hub for decoupling and scalability. Each service handles one function — OCR, CKYC, PAN, Aadhaar, PEP/sanctions screening. The orchestration layer aggregates results. Data is stored in a golden record (Customer 360) with full audit lineage. This ensures regulatory compliance while being horizontally scalable for millions of customers.
2. How do you reduce false positives in AML transaction monitoring?
Answer:
Dynamic rules tuning based on risk appetite.
Machine Learning models (supervised or semi-supervised) to prioritize alerts.
Customer segmentation — apply different thresholds for retail, corporate, HNI.
Feedback loop from analysts to continuously refine models.This improves efficiency and reduces alert fatigue without missing true suspicious cases.
3. What are the key challenges in integrating with CKYC, PAN, and Aadhaar?
Answer:
CKYC: Latency and downtime in CERSAI APIs → mitigate with retries and caching.
PAN: Limited availability windows, name mismatches due to spelling issues → fuzzy matching helps.
Aadhaar XML: Regulatory restrictions → must validate UIDAI signature, mask Aadhaar number, store only minimal fields.Overall, strong error handling, idempotency, and audit logging are critical.
4. How do you ensure end-to-end auditability for regulators like FIU-IND or SEBI?
Answer:
Maintain immutable event logs with timestamp, correlation ID, and system user ID.
Store all KYC & AML decisions in a data lake with versioning.
Automate STR/CTR/NTR generation with lineage back to source data.
Provide regulator dashboards with drill-down capability to each transaction.This ensures transparency and audit readiness.
5. How would you handle a scenario where CKYC APIs are down during onboarding?
Answer:
Use graceful degradation: continue onboarding based on PAN, Aadhaar, and document OCR.
Queue CKYC check asynchronously, mark profile as “provisional.”
Once CKYC is available, reconcile results and update risk classification.This ensures customer experience is not blocked while compliance is still enforced.
6. How do you ensure data privacy while storing Aadhaar and PAN?
Answer:
Aadhaar: Mask and store only last 4 digits, retain UIDAI XML signature for verification.
PAN: Store securely with encryption (AES-256 at rest, TLS 1.2+ in transit).
Apply data minimization principles — store only what is legally required.
Use tokenization for sensitive IDs, and maintain RBAC + audit trails for access.
7. Can you explain how you would integrate sanctions and PEP screening into onboarding?
Answer:During onboarding, after OCR and registry checks, data is sent to screening services (e.g., Refinitiv, Dow Jones). The service runs name, DOB, country against PEP, Sanctions, and Adverse Media lists.
Screening runs asynchronously and emits results back into orchestration.
Alerts go into case management if flagged.
Screening is also rerun periodically (daily batch or near real-time) to catch updates.
8. How would you manage regulatory reporting for suspicious activity (SAR/STR)?
Answer:
Case Management Service escalates confirmed suspicious alerts.
A Regulatory Reporting Service aggregates them into FIU-IND formats (STR, CTR, NTR).
Reports are signed, encrypted, and transmitted securely.
All submitted reports + acknowledgments are stored in immutable audit logs.This ensures compliance and evidence trail for audits.
9. What are the biggest risks in KYC/AML modernization projects, and how do you mitigate them?
Answer:
False positives overload → ML + segmentation.
Integration failures → retries, caching, async processing.
Regulatory non-compliance → involve compliance team early, regular rule updates.
Operational resistance → provide training and phased rollout.
Data privacy violations → masking, tokenization, data retention policies.
10. How do you align technology delivery with compliance and operations teams?
Answer:I establish joint workshops with compliance, operations, and IT to define rules, risk appetite, and workflows. Build a compliance rule catalog mapped to technical scenarios. Use agile delivery with compliance sign-off in every sprint. Provide sandbox environments for ops teams to test workflows. This ensures alignment and adoption.
📝 Scenario-Based Case Study Q&A
Case Study Question
"Your bank has just been fined by the regulator for weak AML controls — specifically, the AML Transaction Monitoring system is generating too many false positives, causing delays in investigating real suspicious cases. As the delivery lead for compliance technology, how would you address this issue end-to-end?"
Model Answer (Structured 5-Step Response)
Step 1 – Acknowledge the Issue & Business Impact"First, I would acknowledge that excessive false positives directly impact compliance effectiveness. Analysts spend too much time on low-risk cases, which increases the chance of missing true suspicious activity and creates regulatory exposure."
Step 2 – Immediate Stabilization (Tactical Actions)
Convene a triage task force with compliance, operations, and technology.
Identify top 10–15 alert scenarios contributing to 80% of false positives.
Apply temporary tuning: adjust thresholds, disable irrelevant rules, introduce customer segmentation.
Increase manual oversight on high-risk transactions until fixes stabilize.
Step 3 – Medium-Term Remediation (Technology Enhancements)
Implement a risk-based alert scoring model: prioritize alerts based on geography, product, customer type.
Introduce ML-driven models to learn from historical analyst dispositions.
Build a feedback loop from case management → continuously refine rules.
Enhance data quality by integrating clean KYC attributes (accurate DOB, PAN, Aadhaar, CKYC ID).
Step 4 – Long-Term Strategy (Target State Architecture)
Re-architect AML TM as a cloud-native, event-driven microservices system integrated with KYC/CDD and Sanctions screening.
Enable real-time monitoring with Kafka streams for high-value transactions.
Adopt a hybrid approach: rules + ML + graph analytics for network detection (e.g., layering, structuring).
Ensure regulatory auditability: every alert, decision, and data element must have immutable lineage.
Step 5 – Governance & Regulator Engagement
Establish a compliance governance board that signs off on every rule update.
Provide the regulator with a remediation roadmap: short-term fixes + medium-term ML enhancements + long-term modernization.
Commit to quarterly reviews and transparent reporting of improvements.
Closing Line (Impact)
"By combining tactical rule tuning, ML-based alert prioritization, and a long-term modernization roadmap, I can significantly reduce false positives, improve analyst efficiency, and restore regulatory confidence while ensuring we stay audit-ready."
📝 Case Study Walkthrough – Customer Amit R
Scenario
Amit R, a salaried professional, is trying to open a savings + investment account with your bank.During onboarding:
His Aadhaar-based CKYC fetch failed twice (UIDAI downtime).
He was asked to resubmit PAN and Aadhaar, leading to frustration.
Later, his international remittance was held up because the AML Transaction Monitoring (TM) system flagged a false positive (low-value, genuine transaction).Now Amit R escalates to customer support and posts a complaint on social media, tagging the regulator.
The CTO asks you: “How will you solve Amit’s issue immediately and also fix the system long-term so it doesn’t happen again?”
✅ Model Walkthrough Answer
Step 1 – Acknowledge Customer Pain
"First, I’d empathize with Amit’s situation — he experienced both onboarding delays and unnecessary transaction blocking. This hurts customer trust, increases regulatory risk, and impacts our brand."
Step 2 – Immediate Actions for Amit (Customer Recovery)
KYC issue: Manually validate PAN + Aadhaar via alternative channel (e.g., DigiLocker, PAN NSDL API).
Transaction issue: Fast-track his remittance by escalating the false positive case to L2 compliance analyst.
Customer handling: Assign a dedicated RM (relationship manager) to update Amit in real time, plus issue a formal apology and fee waiver.
Step 3 – Root Cause Analysis
CKYC/Aadhaar dependency → no fallback path → customer friction.
AML TM → too many false positives → genuine transactions blocked.
Lack of real-time monitoring + case prioritization → delays in resolution.
Step 4 – Tactical Fixes (Next 30–60 days)
Build multi-channel KYC fallback: PAN NSDL, DigiLocker, Voter ID API if Aadhaar/CKYC fails.
Enhance AML rules by adding customer segmentation (salary credit profile, low remittance risk).
Introduce alert prioritization dashboard: escalate low-value clean remittances automatically.
Step 5 – Strategic Fix (Target State)
Digital Onboarding: Event-driven KYC microservices integrated with multiple external APIs + cache CKYC locally with audit logs.
AML TM Modernization: Kafka-based real-time monitoring, ML models trained on historical false positives, and graph-based detection for suspicious patterns.
Audit & Compliance: Immutable audit trail for every KYC attempt + AML alert, accessible to FIU/Regulator.
Customer Experience: Deploy proactive GenAI-powered assistant that informs customers if CKYC/Aadhaar is down and suggests alternatives instantly.
Step 6 – Governance & Regulator Engagement
File an incident report with the regulator explaining root cause + customer remediation.
Share remediation roadmap:
Immediate: fallback APIs
Medium-term: ML-driven AML scoring
Long-term: event-driven, cloud-native compliance architecture
Conduct quarterly compliance effectiveness reviews with internal audit + regulator.
Closing Statement (Impact)
"By addressing Amit’s issue with empathy and speed, fixing tactical gaps in CKYC and AML, and modernizing the platform with ML + event-driven architecture, I can ensure we reduce false positives, improve onboarding reliability, and restore customer and regulator confidence."
👉 This way, you show:
Customer-first mindset (Amit R’s pain)
Immediate triage & tactical delivery
Long-term architecture vision
Regulatory alignment
🔹 Case Study Q&A Simulation – Amit R (KYC + AML)
Q1.
"Anand, Amit R’s CKYC fetch failed twice due to Aadhaar/UIDAI downtime, causing delays in his onboarding. As a solution architect, how would you design the onboarding flow so that we don’t lose customers when CKYC is unavailable?"
Q2.
"Later, Amit’s international remittance was wrongly flagged by our AML Transaction Monitoring system as suspicious. How will you balance between regulatory compliance and customer experience to reduce such false positives?"
Q3.
"Suppose the regulator reaches out after Amit posted on social media, asking for an explanation of the onboarding and AML failures. How will you respond immediately, and how will you ensure such escalations don’t recur?"
Q4.
"If you were leading delivery for compliance technology, what’s your 90-day roadmap to improve both KYC/CDD onboarding and AML TM effectiveness?"
Q5.
"From a technical solutioning perspective, what core architectural components would you introduce to modernize our compliance platforms, while keeping them regulator-ready and customer-friendly?"
🔹 Q1. Onboarding Failures – CKYC / Aadhaar Downtime
Q: “Amit R’s CKYC fetch failed twice due to Aadhaar/UIDAI downtime, causing delays in his onboarding. How would you design the onboarding flow so that we don’t lose customers when CKYC is unavailable?”
✅ Model Answer:"I would design the onboarding as an event-driven, fault-tolerant flow with fallback options. The CKYC service would be exposed as a microservice integrated via API gateway. If Aadhaar/CKYC is down, the workflow would switch to alternative sources such as PAN NSDL APIs, DigiLocker Aadhaar XML, or Voter ID verification. To avoid multiple customer submissions, I’d use OCR and validation at source, cache results temporarily in Redis with a correlation ID, and once CKYC is back, reconcile automatically in the background. This ensures onboarding doesn’t break, audit logs are maintained, and regulatory compliance is met while the customer experience remains smooth."
🔹 Q2. AML False Positives – Balancing Compliance & Experience
Q: “Amit’s international remittance was wrongly flagged by AML TM. How will you balance between regulatory compliance and customer experience to reduce such false positives?”
✅ Model Answer:"Balancing compliance with customer experience requires a layered approach. First, I’d segment customers based on profile and behavior — for example, Amit’s regular salary credits and clean history mean lower risk. Then, I’d implement machine learning models on top of rules-based AML systems to re-score alerts, reducing false positives. Low-value, low-risk transactions could be auto-cleared, while high-risk patterns (structuring, unusual counterparties) stay prioritized. We’d also add an alert triage dashboard to route urgent cases to compliance teams in real-time. This way, regulatory obligations are honored, but genuine customers like Amit aren’t disrupted unnecessarily."
🔹 Q3. Regulator Escalation
Q: “Suppose the regulator reaches out after Amit posted on social media, asking for an explanation. How will you respond immediately, and how will you ensure such escalations don’t recur?”
✅ Model Answer:"My first step would be transparency. I’d provide the regulator with an incident report showing the root cause — CKYC unavailability and a false positive alert. I’d include audit logs proving that all customer data and compliance checks were intact, and detail how Amit’s case was remediated immediately. To avoid recurrence, I’d present a roadmap that includes fallback KYC APIs, machine learning–driven AML alert scoring, and customer communication improvements (like proactive notifications if a service is down). By showing both remediation and long-term improvements, we maintain regulator trust while improving resilience."
🔹 Q4. 90-Day Roadmap for Compliance Platforms
Q: “If you were leading delivery, what’s your 90-day roadmap to improve both KYC onboarding and AML TM effectiveness?”
✅ Model Answer:*"In the first 90 days, I’d focus on both quick wins and laying the foundation for modernization.
First 30 days: Implement KYC fallback integration (PAN NSDL, DigiLocker), strengthen audit logs, and set up a triage team for AML false positives.
Next 30 days: Deploy an alert prioritization dashboard, begin training ML models using historical AML alerts, and implement customer notification service for onboarding delays.
Last 30 days: Pilot event-driven onboarding workflows using Kafka for CKYC/Aadhaar retries, integrate low-risk transaction auto-clear logic in AML, and establish regulator reporting templates.This phased roadmap delivers immediate relief to customers while progressing toward a scalable, resilient compliance architecture."*
🔹 Q5. Core Architecture Components
Q: “From a technical solutioning perspective, what core architectural components would you introduce to modernize compliance platforms?”
✅ Model Answer:*"I’d propose a microservices-based compliance platform, built on an event-driven backbone with Kafka for real-time streaming. Key components would include:
KYC/CDD Microservices – OCR & data validation, integration with CKYC, PAN, Aadhaar, DigiLocker.
AML Transaction Monitoring Layer – Rules engine + ML scoring models, connected to a graph database for relationship detection.
Audit & Logging Service – Immutable logs stored in Cosmos DB/Elastic for regulator-ready reporting.
Orchestration & Resilience – API Gateway + Service Mesh (Istio) with retry/fallback logic.
Customer Experience Layer – Real-time notification service and GenAI-based advisory assistant for proactive updates.This architecture ensures compliance, reduces false positives, and improves customer onboarding speed, while being regulator-friendly and future-ready."*
⚡ Tip for interview delivery:
Always start with empathy + business impact → then move to technical solutioning → and end with regulator/customer alignment.
This 3-part structure shows leadership + architecture depth.
📝 End-to-End Screening Service Flow (Enterprise Context)
1. Triggering the Screening
Screening is invoked at multiple customer or transaction touchpoints:
Customer Onboarding (KYC/CDD) – new customer Amit R applies for an account.
Ongoing Due Diligence – periodic refresh (every 1/2/5 years depending on risk category).
Transaction Screening – Amit R sends an international wire transfer → transaction is screened before execution.
2. Data Extraction & Normalization
Customer Data: Name, Date of Birth, Nationality, PAN, Passport, Address are extracted from the onboarding/transaction payload.
Normalization: Data is standardized → e.g., “Amit R.” vs “R, Amit” → converted to canonical form (uppercase, stripped of punctuation).
Enrichment: Additional identifiers (customer ID, account ID, correlation ID) are tagged for traceability.
3. Screening Service (Core Engine)
The Screening Service is typically a microservice or enterprise utility deployed centrally. It:
Receives Input via API or message queue (Kafka/ESB).
Performs Matching against multiple lists:
Sanctions lists (OFAC, UN, EU, RBI, HKMA, etc.)
PEP lists (Politically Exposed Persons)
Adverse Media / Negative News feeds
Internal Blacklists/Watchlists
Matching Logic includes:
Exact match (e.g., passport number in UN list)
Fuzzy matching / phonetic matching (e.g., “Mohammed / Mohamed”) using algorithms like Soundex, Levenshtein, or AI-based NLP.
Threshold scoring – similarity score (e.g., 85%) above threshold is flagged.
4. Result Classification
The engine classifies the outcome:
Clear Hit (Pass) → No match, transaction/account proceeds.
True Positive → Actual regulatory match (e.g., Amit’s PAN = blacklisted ID). Must be blocked/reported.
False Positive → Name similar but not same (e.g., “Amit R” vs “Amit Rahman” in watchlist). Needs human review.
Pending / Escalated → Sent to Level-1 Compliance Analyst for manual review.
5. Case Management & Review
Screening hits are logged in a Case Management System (CMS) (e.g., Actimize, Fircosoft, Oracle FCCM, SAS).
L1 Analyst reviews supporting documents (passport, PAN, date of birth).
If unclear → escalates to L2/L3 compliance officer.
Decision outcome (Clear/Block/Report) is recorded.
6. Action Execution
Based on review outcome:
Clear → Customer/transaction released automatically.
Block/Reject → Transaction stopped, account onboarding denied.
Regulatory Report → Suspicious Transaction Report (STR) / Suspicious Activity Report (SAR) filed to FIU-IND or equivalent regulator.
7. Audit, Logging & Regulator Readiness
Every screening attempt (input, list version, match score, reviewer decision) is logged immutably in DB + audit log.
Reports generated for:
Internal Audit (prove no bypass of screening).
Regulator Inspections (FIU, RBI, SEBI).
Versioning: Banks maintain the list version used at screening time → so if later challenged, they can show “On date X, OFAC list v5.2 was used.”
8. Continuous Improvement
False Positive Tuning: Adjust thresholds to balance compliance vs efficiency.
ML/AI Integration: Train models on past hits to reduce unnecessary escalations.
Dynamic Watchlists: Auto-ingestion of regulator updates daily/hourly.
Feedback Loop: Analyst decisions feed back into engine to improve matching.
🔹 Typical Enterprise Architecture Components for Screening
Screening Microservice – REST/GraphQL APIs, Kafka consumers.
Watchlist Data Store – refreshed daily from regulator feeds.
Matching Engine – rules + ML + fuzzy matching.
Case Management – for investigations, workflow, and reporting.
Audit & Compliance Reporting Layer – regulator-ready evidence.
✅ In short:The Screening Service acts like a gatekeeper at every entry and transaction point. It ensures that customers like Amit R are checked against sanctions/PEP/adverse media lists, hits are investigated, regulators can audit the process, and business can prove compliance without causing too many false positives.
finitiv World-Check, Dow Jones Risk & Compliance, and how banks integrate them.
📝 End-to-End Walkthrough – Screening Service with Amit R
Step 1. Event Trigger
Scenario: Amit R applies for an account → onboarding workflow calls the Screening Service API.
Payload sent:
{ "customerId": "CUST12345", "fullName": "Amit R", "dob": "1988-04-05", "nationality": "IN", "documentType": "PAN", "documentId": "ABCDE1234F", "address": "Mumbai, India", "transactionId": null, "screeningType": "CUSTOMER_ONBOARDING" }
Transport: JSON over HTTPS (TLS 1.2+).
Step 2. Integration with Screening Providers
Banks don’t usually maintain sanctions lists manually — they subscribe to data providers (Refinitiv, Dow Jones, LexisNexis, Accuity).
Option A: Local Screening Engine
The bank downloads watchlist feeds daily from provider SFTP/API (sanctions, PEP, adverse media).
These are ingested into an internal DB + matched by in-house engine.
Option B: API Call to Provider (common in modern setups):
Example: Refinitiv World-Check One API
POST /v1/screening/requests
Payload: Amit’s details (name, DOB, nationality, identifiers).
The API returns possible matches with risk scores, match type, and list source.
Example: Dow Jones Risk & Compliance API
Similar endpoint, also supports adverse media search in real time.
Step 3. Screening Engine Matching
The Screening Service either:
Queries external API (Refinitiv/Dow Jones) → receives raw matches.
Or runs local matching using their feeds → applies fuzzy matching, AI scoring.
Output example:
{ "customerId": "CUST12345", "status": "POTENTIAL_HIT", "matches": [ { "listSource": "OFAC", "nameMatched": "Amit Rahman", "matchScore": 87, "dobMatched": false, "nationalityMatched": false } ] }
Step 4. Case Management
Since Amit R is a potential hit (87% score) → the record is logged into Case Management System (CMS) (e.g., Actimize, Fircosoft, Oracle FCCM).
Analyst Workflow:
L1 Analyst compares Amit’s PAN, DOB vs. watchlist entry.
Finds mismatch (DOB, ID don’t match).
Marks as False Positive.
Decision is stored, audit log updated:
"decision": "False Positive", "reviewer": "L1 Analyst 123", "timestamp": "2025-09-15T12:05Z"
Step 5. Outcome Execution
CMS sends outcome back to Screening Service → updates onboarding system.
Amit’s account is approved and onboarding continues.
Audit trail ensures that if regulator asks later, bank can show:
What list version was used,
What match was found,
Who reviewed,
Final decision.
Step 6. Transaction Screening (Future)
Later Amit does an international wire transfer → Payment system triggers Transaction Screening API.
Payload example:
{ "transactionId": "TXN98765", "senderName": "Amit R", "senderAccount": "1234567890", "receiverName": "John Doe", "receiverCountry": "US", "amount": 1500, "currency": "USD", "purpose": "Education" }
Screening Service checks:
Sender/Receiver names vs. lists.
Country (if sanctioned e.g., Iran, North Korea).
Purpose code vs. high-risk categories.
If clean → pass. If hit → block transaction + escalate case.
Step 7. Regulatory Reporting
If a True Positive was found, the bank must:
Block account/transaction.
File STR (Suspicious Transaction Report) or CTR (Cash Transaction Report) to FIU-IND.
Report is generated automatically from CMS with case evidence.
🔹 How Integration is Done (Technical Flow)
1. Bank Systems → Screening Service
Systems (CBS, Mobile Banking, Payments, Onboarding) call internal Screening Microservice (REST API / Kafka event).
2. Screening Service → External Providers
Options:
Synchronous API calls → Refinitiv/Dow Jones.
Local DB Matching → watchlists refreshed daily from provider feeds.
3. Data Passed
For customers: Name, DOB, ID type + number, nationality, address.
For transactions: Sender/receiver details, country, amount, purpose code.
4. Security & Compliance
All API calls are TLS encrypted.
PII data masked where possible.
Audit logs stored with immutable ID + timestamp.
✅ In Summary
Trigger: Onboarding or transaction event.
Data passed: Customer identifiers or transaction metadata.
Integration: Internal Screening Service → external providers (Refinitiv/Dow Jones) or in-house engine.
Matching: Exact/fuzzy/ML scoring.
Outcome: Pass / False Positive / True Positive.
Case Management: Analysts review borderline cases.
Regulator-ready audit: Logs, list version, reviewer decision.
🔹 Screening Result Flow
Pass (Clear Match = No hit)
✅ Automatically Approved
No human review needed
Onboarding/transaction continues
Potential Hit (Name/DOB similarity, but not exact)
⚠️ Goes for Review by L1 compliance analyst
Analyst compares additional identifiers (PAN, Passport, DOB, Nationality)
Outcome after review:
If mismatch → mark as False Positive → Approved
If match → mark as True Positive → Blocked/Reported
True Positive (Confirmed match with sanctions/PEP/adverse media)
❌ Rejected/Blocked
Customer cannot be onboarded OR transaction stopped
Case escalated + STR/SAR filed to FIU/regulator
✅ So in short:
Pass → Directly Approved (no review).
False Positive → Initially flagged, but after analyst review → Approved.
True Positive → Block/Report.
Here’s the clean breakdown:
🔹 Screening Decision Outcomes
Result | Meaning | Next Step | Final Status |
Pass | No match found in any list (clean record). | Auto-approve, no analyst review needed. | ✅ Approved |
Potential Hit | Name/identifier similarity, but not conclusive (system flags as “suspect”). | Sent to analyst for manual review. | Pending → Reviewed |
False Positive | After analyst review → mismatch (e.g., name similar but PAN/DOB don’t match). | Case closed, proceed with onboarding/transaction. | ✅ Approved |
True Positive | Analyst confirms match with sanctions/PEP list. | Block onboarding/transaction + file STR/SAR. | ❌ Rejected / Reported |
✅ So yes → if mismatch after human review → it is marked as False Positive → Approved.❌ Only True Positives result in rejection/blocking.
Do you want me to also prepare a ready one-liner you can use in the interview, like:"False positives don’t stop the customer permanently — they go for analyst review, and if found mismatched, the case is approved and the customer continues their journey."
Let’s straighten this out ⚖️ — this part is often tricky in interviews because the terminology can confuse.
🔹 Correct Regulatory Practice in Enterprises
Pass (Clear) → ✅ Onboard / allow transaction (no issues).
Potential Hit → ⚠️ Needs manual review by analyst.
After review:
False Positive → This means the system thought there was a match, but after checking identifiers (DOB, PAN, Passport, etc.), the analyst finds it’s NOT the same person/entity.
✅ Customer can be onboarded / transaction can go through.
Example: “Amit R” flagged against “Amit Rahman” on UN list → but PAN/DOB mismatch proves it’s different.
True Positive → Analyst confirms it’s the same as sanctions/PEP entry.
❌ Block onboarding / transaction.
Report to FIU/regulator.
🔹 Why False Positive = Approved
If every false positive was blocked, banks would:
Wrongly deny thousands of genuine customers.
Fail financial inclusion obligations.
Draw regulator criticism for being over-conservative.
That’s why manual review exists → to distinguish genuine customers from true risks.
✅ So, final clarification:
False Positive = Approved (after review).
True Positive = Blocked/Reported.
Perfect 👍 — citing regulators in your interview will show that you not only understand enterprise practice but also compliance law.
🔹 Key Regulator References on False Positives
FATF (Financial Action Task Force) – International Standard
FATF explicitly states that screening tools will generate false positives, and these should be resolved through manual review.
Only true matches (confirmed hits) should lead to blocking and reporting.
Ref: FATF Guidance on AML/CFT Risk-Based Approach, 2021.
RBI (India) – Master Direction on KYC (2023)
Section 38: Regulated entities must screen customers against UN Sanctions/PEP lists.
Section 39: If a match is found, banks must verify identifiers and escalate for review.
Only confirmed matches are treated as reportable; false positives can be onboarded.
OFAC (US Treasury, for global best practice)
OFAC FAQ #41: "A potential match does not mean you are dealing with an SDN. You must determine if the information truly matches."
If not, it is a false positive and business may continue.
🔹 How to Say It in the Interview
"Our screening service integrates with external providers like Refinitiv World-Check or Dow Jones. Any name similarity triggers a potential hit. As per FATF, RBI, and OFAC guidelines, potential hits undergo manual review. If it’s a false positive, the customer is cleared and onboarding proceeds. If it’s a true positive, onboarding is blocked and the case is reported to FIU-IND or the relevant regulator."
Great 👌 — let’s do a sample walkthrough with your example Amit R being flagged. This is the kind of scenario-based storytelling that wins interviews because it shows both technical solutioning and compliance awareness.
🔹 Case Study: Screening Flag for Amit R
Step 1: Onboarding Trigger
Customer Amit R applies for account opening.
KYC/CDD service collects identifiers:
Full Name: Amit R
DOB: 15/07/1988
PAN: ABCDE1234F
Address: Mumbai, India
Step 2: Screening Service
Screening microservice sends request to provider (e.g., Refinitiv World-Check API).
Payload: { name, DOB, PAN, nationality, address }.
Response: Match found → “Amit Rahman” on UN Consolidated List.
Step 3: System Action
System categorizes as Potential Hit.
Customer onboarding workflow is paused.
Case is routed to Level-1 Compliance Analyst via Case Management system.
Audit log created: CaseID #12345, Reason: Name Match, Source: UN List.
Step 4: Analyst Manual Review
The analyst compares:
Field | Customer (Amit R) | Watchlist (Amit Rahman) | Match? |
Full Name | Amit R | Amit Rahman | Partial |
DOB | 15/07/1988 | 12/03/1975 | ❌ |
PAN | ABCDE1234F | N/A | ❌ |
Nationality | Indian | Bangladeshi | ❌ |
Conclusion: Identifiers do not match.
Determination: False Positive.
Step 5: Decision Documentation
Analyst updates case system:
“Reviewed against UN list entry. Name similarity only. DOB, PAN, nationality differ. Determined False Positive.”
Audit trail locked for RBI/FIU inspection.
Step 6: System Action
Case status → False Positive – Cleared.
Customer onboarding resumes.
Notification sent to Ops: “Customer approved – false positive case.”
🔹 Interview-Friendly Soundbite
"Let me give you a real-world example. Suppose a customer named Amit R is flagged by Refinitiv because of a partial name match to a UN-listed individual Amit Rahman. Our screening system pauses onboarding and creates a compliance case. The analyst compares identifiers like DOB, PAN, and nationality, finds clear mismatches, and records the decision as a False Positive. This decision is logged for audit, and onboarding continues. If it had been a True Positive, onboarding would be blocked and escalated to FIU-IND. This shows how we balance regulatory compliance with customer experience."
🔹 Case Study: Screening Flag – True Positive
Step 1: Onboarding Trigger
Customer Amit R applies for account opening.
KYC/CDD service collects identifiers:
Full Name: Amit R
DOB: 12/03/1975
Passport: Z1234567
Nationality: Bangladeshi
Step 2: Screening Service
Screening microservice calls Dow Jones Risk & Compliance API.
Payload: { name, DOB, passport, nationality }.
Response: Match found → UN Sanctions List – Individual “Amit Rahman”.
Step 3: System Action
Match risk score = High (95%).
Customer onboarding workflow paused immediately.
Case created in Case Management System (CMS) → CaseID #98765.
Audit log created: “Potential Sanctions Hit – UN List.”
Step 4: Analyst Manual Review
The analyst compares:
Field | Customer (Amit R) | Watchlist (Amit Rahman) | Match? |
Full Name | Amit R | Amit Rahman | ✅ |
DOB | 12/03/1975 | 12/03/1975 | ✅ |
Passport | Z1234567 | Z1234567 | ✅ |
Nationality | Bangladeshi | Bangladeshi | ✅ |
Conclusion: Identifiers fully match.
Determination: True Positive.
Step 5: Decision Documentation
Analyst records decision in CMS:
“Confirmed match against UN Sanctions list. All identifiers align (DOB, Passport, Nationality). This is a True Positive.”
Case escalated to Level-2 Senior Compliance Officer for approval.
Step 6: Final Action
Case approved as True Positive.
Customer blocked from onboarding.
System triggers:
Reject Application → notify Ops team.
Generate Suspicious Transaction Report (STR) → automatically prepared.
File STR with FIU-IND (India) or local regulator.
Retain audit trail for regulatory inspection.
🔹 Interview-Friendly Soundbite
"Let’s take a True Positive case. Suppose Amit R applies for onboarding, and the screening service finds a direct match on the UN Sanctions List — including exact name, DOB, and passport. The onboarding is stopped immediately. Compliance analysts validate the identifiers, confirm it’s a True Positive, and record the decision. The customer is rejected, an STR is filed with FIU-IND, and the full audit trail is preserved for regulators. This ensures the bank does not onboard sanctioned individuals while demonstrating end-to-end compliance."
✅ Now you have both narratives:
False Positive → Onboard (after analyst review)
True Positive → Block & Report
Excellent ✅ — having a Gray Zone / Enhanced Due Diligence (EDD) scenario ready shows you can handle real-world complexity (not just binary pass/fail).
🔹 Case Study: Screening Flag – Gray Zone (EDD Required)
Step 1: Onboarding Trigger
Customer Amit R applies for a high-value corporate account.
KYC/CDD service collects:
Full Name: Amit R
DOB: 15/07/1978
Passport: Z9876543
Nationality: Indian
Step 2: Screening Service
Screening microservice calls Refinitiv World-Check API.
Payload: { name, DOB, passport, nationality }.
Response: Potential match → Politically Exposed Person (PEP): “Amit R Sharma”, Senior Govt Official in India.
Step 3: System Action
Match risk score = Medium (65%).
Onboarding workflow paused.
Case created in Case Management System (CMS) → CaseID #45678.
Audit log entry: “PEP Potential Match – World-Check.”
Step 4: Analyst Review
Comparison:
Field | Customer (Amit R) | Watchlist (Amit R Sharma) | Match? |
Full Name | Amit R | Amit R Sharma | Partial |
DOB | 15/07/1978 | 15/07/1979 | Close (±1 yr) |
Passport | Z9876543 | Not Available | ❌ |
Nationality | Indian | Indian | ✅ |
Occupation | Private Sector Employee | Senior Politician | ❌ |
Conclusion: Not a clear True Positive.
But risk indicators present → Possible PEP confusion.
Step 5: EDD Trigger
Analyst marks as “Inconclusive – Escalate to Enhanced Due Diligence.”
Additional steps initiated:
Request extra documents (Employment proof, Address proof, PAN, Aadhaar).
Perform media screening (negative news search).
Check with independent vendor (e.g., Dow Jones PEP database).
Senior Compliance Officer reviews case.
Step 6: Outcome
After EDD:
Media search shows no adverse news.
PAN/Aadhaar verified, employer confirmed → private sector.
Dow Jones confirms not the same individual.
Final decision: False Positive (after EDD) → ✅ Customer approved.
🔹 Interview-Friendly Soundbite
"Not all matches are clear-cut. For example, suppose Amit R is flagged as a possible PEP because of a partial match to ‘Amit R Sharma’, a senior politician. The system pauses onboarding, and compliance performs Enhanced Due Diligence. This includes extra document checks, media screening, and sometimes secondary vendor validation. If EDD clears the case, the customer can be onboarded. If doubts remain, the case is escalated further. This gray zone handling is critical in enterprise compliance — it balances regulatory expectations with customer experience."
✅ Now you have all three cases ready:
False Positive → Approve
True Positive → Block + STR
Gray Zone → EDD → Final decision
Perfect — now let’s bring FATCA and OFAC into the conversation, because interviewers often test your knowledge of global regulatory compliance along with RBI/India-specific rules.
🔹 FATCA (Foreign Account Tax Compliance Act)
Purpose:
U.S. law aimed at preventing tax evasion by U.S. persons holding financial accounts outside the U.S.
Requires foreign financial institutions (FFIs) to report U.S. account holders’ financial information to the IRS via their local tax authority.
Enterprise Implementation:
Customer Identification:
During onboarding, the system identifies if a customer is a U.S. citizen, green card holder, or U.S. tax resident.
Uses self-declaration forms + KYC data.
Screening & Data Capture:
Store FATCA classification (U.S./Non-U.S.) in the database.
Collect TIN (Taxpayer Identification Number) for U.S. accounts.
Reporting:
Generate annual reports to IRS via local tax authority.
Flag any accounts for review if documentation is missing or inconsistent.
Key Takeaway: FATCA is mostly reporting-focused, not about sanctions.
🔹 OFAC (Office of Foreign Assets Control – U.S. Treasury)
Purpose:
U.S. law that sanctions individuals, entities, countries to prevent money laundering, terrorism financing, and economic crimes.
Includes:
SDN List (Specially Designated Nationals)
Sanctioned Countries (e.g., Iran, North Korea)
Enterprise Implementation:
Screening:
During onboarding or transaction, customer/beneficiary info is screened against OFAC SDN lists.
Uses exact/fuzzy matching algorithms.
Blocking & Reporting:
True Positive match → block account or transaction.
Mandatory report to OFAC within defined timelines (daily/real-time depending on system).
Audit & Record Keeping:
Every match attempt logged (list version, match score, reviewer).
Essential for regulatory inspection.
Key Takeaway: OFAC is blocking and reporting-focused, globally enforceable, applies to U.S.-linked transactions/accounts.
🔹 Enterprise Flow – How FATCA + OFAC Fit in Screening
Regulatory | Focus | Trigger Point | Action Taken |
FATCA | Tax compliance, U.S. accounts | Onboarding / KYC | Capture TIN, classify account, report annually |
OFAC | Sanctions, SDNs, blocked entities | Onboarding + Transaction | Block True Positive, escalate & report to OFAC/FIU |
Interview-Friendly Soundbite:
"In global compliance, we handle multiple regulatory frameworks. FATCA ensures U.S. account holders are reported to the IRS — mostly KYC capture and annual reporting. OFAC is a sanctions-focused framework — any match to SDN lists or sanctioned countries triggers a block and immediate reporting. Our screening platform integrates both: FATCA captures U.S. customers, OFAC flags blocked individuals/entities. This ensures compliance with both tax and financial crime regulations, while maintaining seamless onboarding for genuine customers."
If you want, I can now integrate FATCA + OFAC into our Amit R case study walkthrough, showing:
How onboarding is screened for sanctions (OFAC)
How U.S. tax residency (FATCA) is handled simultaneously
Including audit & decision flow
This gives you a complete, real enterprise scenario for the panel.
Perfect 👌 — let’s create a full enterprise case walkthrough with Amit R, integrating screening, FATCA, and OFAC, showing end-to-end flow, decisions, and audit.
📝 Amit R – End-to-End Screening + FATCA + OFAC Walkthrough
Step 1: Customer Onboarding Trigger
Customer: Amit R applies for a personal account.
KYC/CDD collects:
Name: Amit R
DOB: 15/07/1988
PAN: ABCDE1234F
Nationality: Indian
Passport: Z1234567
Country of Tax Residence: USA & India (dual citizenship claim)
System generates: Correlation ID, Case ID for auditability.
Step 2: Screening Microservice Calls
a) Sanctions & PEP Check (OFAC / UN / Dow Jones / Refinitiv)
Payload sent to Screening API: name, DOB, passport, nationality.
Response Example:
Potential PEP match: Amit Rahman (UN Sanctions List)
Match Score: 82%
b) FATCA Screening
System checks:
Is customer a U.S. tax resident? ✅ Yes
Does customer provide TIN? ❌ Missing
Outcome: Need FATCA classification & documentation
Step 3: Decision Routing
Screening Result | Action | Notes |
OFAC/UN Potential Hit | Analyst review | Name similarity → Partial match |
FATCA Missing TIN | Request customer documentation | Required for U.S. reporting |
Overall Risk Score > 75% | Flagged for Enhanced Due Diligence | Gray zone scenario |
Case moves to Level-1 Analyst.
Step 4: Analyst Review
Sanctions/PEP Check:
Name mismatch: Amit R vs Amit Rahman
DOB, passport, nationality → do not match
Conclusion → False Positive for OFAC/UN → can approve
FATCA Review:
Customer must submit TIN or W-9/W-8BEN
Once received and validated → FATCA compliance satisfied
Gray Zone Handling (EDD):
High-value account → optional additional check: negative media scan, independent verification
Step 5: Outcome Actions
Module | Action Taken |
KYC/CDD | Approve onboarding (False Positive resolved) |
FATCA | Account classified as U.S. tax resident; report to IRS prepared once TIN received |
OFAC / Sanctions | No true match → onboarding continues |
Audit Trail | Immutable logs: Correlation ID, timestamps, analyst decision, list version, FATCA documents |
Customer account created in core banking system.
Step 6: Transaction Screening (Post-Onboarding)
Amit R initiates international wire transfer.
Screening microservice triggers:
OFAC SDN check → Pass
FATCA → Already classified → pass
AML Transaction Monitoring → rules/ML scoring applied → pass
Transaction approved → audit log updated for regulatory compliance.
🔹 Interview-Friendly Narrative
"Let me walk you through a real enterprise scenario. Amit R applies for onboarding, and the system automatically screens him across OFAC/UN sanctions lists and FATCA tax residency rules. The screening service flags a potential PEP match in OFAC, and FATCA shows missing TIN. Analysts perform enhanced due diligence: the sanctions match is verified as a false positive, and FATCA documents are collected. The onboarding is approved, fully audited, and the customer is classified as U.S. tax resident for reporting. Later, his international transaction passes both OFAC and AML screening. This end-to-end flow demonstrates how enterprise banks integrate screening, FATCA, and sanctions checks while balancing regulatory compliance and customer experience."
If you want, I can also draw a simple text-based architecture/flow diagram showing:Onboarding → Screening → Analyst Review → FATCA/OFAC → Case Management → Audit → Final Approval
Perfect ✅ — here’s a text-based architecture/flow diagram for Amit R’s onboarding and screening scenario. You can walk the panel through this verbally:
Customer Onboarding: Amit R
---------------------------------------
| KYC/CDD Service |
| - Collect Name, DOB, PAN, Passport|
| - Country of Tax Residence |
| - Generate Correlation ID / CaseID|
---------------------------------------
|
v
---------------------------------------
| Screening Microservice |
| - Sends data to: |
| • OFAC / UN / Dow Jones / |
| Refinitiv (Sanctions & PEP) |
| • FATCA Compliance Check |
| - Returns potential hits / missing |
| documentation |
---------------------------------------
|
v
---------------------------------------
| Case Management System (CMS) |
| - Receives potential hits |
| - Creates CaseID / Audit Trail |
| - Routes to Analyst |
---------------------------------------
|
v
---------------------------------------
| Analyst Review |
| - Compare identifiers (DOB, PAN, |
| Passport, Nationality) |
| - Resolve False Positives |
| - Escalate Gray Zone to EDD |
| - Collect FATCA documents |
---------------------------------------
|
v
---------------------------------------
| Decision Engine |
| - False Positive → Approve |
| - True Positive → Block / STR |
| - FATCA compliant → Update account |
---------------------------------------
|
v
---------------------------------------
| Core Banking / Transaction System |
| - Account creation / Transaction |
| processing |
| - Trigger AML Transaction Monitoring |
| - Log audit trail |
---------------------------------------
✅ How to Present in Interview
"Here’s a text-based flow of the end-to-end process: Amit R’s onboarding data goes to KYC/CDD service, which generates a Correlation ID. The Screening Microservice checks sanctions/PEP (OFAC, UN, Dow Jones) and FATCA compliance. Potential hits are routed to the Case Management System. Analysts manually review false positives or escalate gray zone cases for Enhanced Due Diligence. Once cleared, the Decision Engine updates account status — false positives approved, true positives blocked, FATCA classification applied. Finally, the account is created in the core banking system, and transactions are monitored with full audit logging."
Perfect 👌 — here’s a mini integration table for the screening/FATCA system showing how microservices interact with external providers, payloads, and expected responses. You can use this in your interview to show technical + domain depth.
Enterprise Screening & Compliance – API Integration Table
External Provider / Regulation | Integration Point | Request Payload (JSON) | Response / Output | Internal Microservice / Action |
Refinitiv World-Check | Screening Microservice | { "customerId": "CUST12345", "fullName": "Amit R", "dob": "1988-07-15", "passport": "Z1234567", "nationality": "IN" } | { "status": "POTENTIAL_HIT", "matches": [ { "name": "Amit Rahman", "matchScore": 82, "listSource": "UN List" } ] } | Route to Case Management System → Analyst Review → False Positive / True Positive / EDD |
Dow Jones Risk & Compliance | Screening Microservice | { "fullName": "Amit R", "dob": "1988-07-15", "passport": "Z1234567", "nationality": "IN", "accountType": "Personal" } | { "matchStatus": "Potential PEP", "riskScore": 65, "source": "PEP India" } | Analyst escalates Gray Zone → Enhanced Due Diligence → Decision Engine |
OFAC SDN List (US Treasury) | Screening Microservice | { "name": "Amit R", "dob": "1988-07-15", "nationality": "IN" } | { "match": true/false, "entityType": "Individual", "listVersion": "2025-09-01" } | True Positive → Block / Report → FIU-IND / OFAC Reporting, Audit Log |
FATCA (IRS / Local FFI) | FATCA Microservice / KYC | { "customerId": "CUST12345", "fullName": "Amit R", "taxResidence": ["US"], "TIN": null } | { "status": "TIN_REQUIRED", "documentation": ["W-9 or W-8BEN"] } | Request documents from customer → Update FATCA status → Report to IRS after collection |
Local RBI / FIU-IND AML | Transaction Screening / AML Service | { "transactionId": "TXN98765", "senderName": "Amit R", "receiverName": "John Doe", "amount": 1500, "currency": "USD" } | { "screeningStatus": "CLEAR", "riskScore": 12 } | Pass → allow transaction; Fail → Block + STR filing; Audit trail stored |
✅ Notes / Key Points for Interview
Screening Microservice acts as single interface for multiple providers → abstracts complexity.
Auditability: Each request & response is logged with Correlation ID, Timestamp, Provider Version, Match Score.
Decision Engine determines action:
False Positive → Approve
True Positive → Block + STR
Gray Zone → EDD → Analyst Review
FATCA handles tax residency classification separately, but integrated into onboarding workflow.
Transaction Monitoring uses internal AML rules + same screening provider integration for real-time transaction compliance.
If you want, I can also draft a ready-to-speak 2-minute narrative combining this table + Amit R example, so in the panel you can explain all API integrations, screening, FATCA, OFAC, EDD, and audit smoothly without notes.
Yes — in modern enterprise banking, both FATCA and OFAC checks can be integrated via APIs, though the way they work is different because one is tax reporting and the other is sanctions/blocking. Let me explain clearly:
1️⃣ OFAC (Sanctions / SDN Checks)
APIs are commonly used by banks to check customers/transactions in real time.
How it works:
Bank calls screening microservice → microservice calls OFAC SDN API (or via a vendor like Refinitiv, Dow Jones).
Request payload includes: Name, DOB, Nationality, Passport/ID, etc.
Response tells if there’s a match, match type, risk score, and list version.
True Positive → Block + Report; False Positive → manual review.
Notes: OFAC publishes free SDN list files, but real-time API vendors provide:
Fuzzy matching
Risk scoring
Consolidated global sanctions list
So yes, OFAC can be checked via API (usually through vendors or internal API wrapping the OFAC lists).
2️⃣ FATCA (Tax Compliance / US IRS Reporting)
FATCA is mostly reporting-focused, not about blocking customers.
APIs may be used if:
The bank uses a vendor system for FATCA classification (e.g., Verafin, Fiserv, or in-house FATCA service).
Customer tax residency data, TIN, and FATCA form status can be validated programmatically.
Typical flow:
KYC captures customer’s tax residency & TIN.
FATCA microservice checks:
Is TIN provided?
Does it match IRS database (via API or vendor)?
Reports U.S. account holders to IRS via local tax authority.
Notes: Many banks don’t call IRS directly via API — they rely on vendor platforms or batch reporting.
Summary Table
Regulation | API Usage? | Purpose | Notes |
OFAC | ✅ Yes | Real-time screening, match check | Usually via vendor API for fuzzy matching & global SDN integration |
FATCA | ⚠️ Optional | Customer classification, TIN validation | Usually handled via vendor platform or internal microservice; batch reporting to IRS |
💡 Interview Tip:
Say:"For OFAC, we typically integrate via real-time APIs (either vendor-provided or internal microservice) to check SDN/sanctions lists before onboarding or transactions. For FATCA, the API usage depends on whether the bank uses a vendor or internal platform — it mainly validates tax residency and TIN before reporting to the IRS. Direct IRS API calls are rare; reporting is usually done through local tax authority submissions."
Perfect ✅ — let’s integrate OFAC and FATCA API calls into the Amit R end-to-end walkthrough, showing exactly how the microservices interact with external systems.
📝 Amit R – End-to-End Onboarding with OFAC & FATCA API Calls
Step 1: Customer Onboarding Trigger
Customer: Amit R applies for a personal account.
KYC/CDD collects: Name, DOB, PAN, Passport, Nationality, Country of Tax Residence, TIN.
System generates: Correlation ID / Case ID for audit.
Step 2: Screening Microservice Calls
a) Sanctions / PEP Check – OFAC API
Microservice request payload:
{
"customerId": "CUST12345",
"fullName": "Amit R",
"dob": "1988-07-15",
"passport": "Z1234567",
"nationality": "IN"
}
API Call: Vendor API or internal OFAC microservice.
Response example:
{
"match": false,
"entityType": "Individual",
"listSource": "OFAC SDN",
"matchScore": 0
}
Action: No match → continue. If match: true → create case in CMS.
b) FATCA Compliance Check – FATCA API
Microservice request payload:
{
"customerId": "CUST12345",
"fullName": "Amit R",
"taxResidences": ["US", "IN"],
"TIN": null
}
API Call: Internal FATCA microservice or vendor platform.
Response example:
{
"status": "TIN_REQUIRED",
"requiredDocuments": ["W-9"]
}
Action: Request TIN from customer, update FATCA status once received.
Step 3: Case Management System (CMS)
Potential hits or missing info routed to analysts.
Audit logs: Correlation ID, timestamps, API responses, list versions, FATCA doc status.
Step 4: Analyst / EDD Review
OFAC / Sanctions check:
No match → False Positive resolved → Approve.
FATCA check:
TIN received and validated → classify as U.S. tax resident → reportable.
Gray zone (e.g., partial PEP match): Escalate for Enhanced Due Diligence.
Step 5: Decision Engine
False Positive: Approve onboarding.
True Positive (OFAC / UN SDN): Block account, file STR/Report.
FATCA Compliance: Update classification, prepare IRS/local tax report.
Step 6: Core Banking & Transaction Monitoring
Account created after all checks.
Transactions screened in real-time via:
OFAC microservice → block if True Positive.
AML monitoring → generate alerts if thresholds breached.
Audit trail preserved for regulatory inspection.
Step 7: Audit & Reporting
All API calls, analyst decisions, and document submissions logged.
FATCA report generated for IRS via local authority.
OFAC / SDN matches documented, STR filed if required.
✅ Interview-Friendly Narrative
"In Amit R’s onboarding, our microservice architecture integrates with external compliance APIs. The OFAC API checks the customer against SDN/sanctions lists in real time, and FATCA API verifies tax residency and TIN status. Any potential hits or missing info trigger the Case Management System, where analysts perform manual review or Enhanced Due Diligence. False positives are cleared and onboarding proceeds, true positives are blocked and reported, and FATCA-compliant accounts are classified for IRS reporting. Every step is logged with Correlation IDs for audit and regulatory compliance."
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