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Digital Mutual Fund Platform Modernization

  • Writer: Anand Nerurkar
    Anand Nerurkar
  • Apr 22
  • 6 min read

Updated: Apr 30

Case Study Walkthrough: Digital Mutual Fund Platform Modernization

🎯 Business Objective

Modernize ABSLAMC's investor servicing and fund management platform with:

  • Microservices architecture on Azure Cloud

  • Security & SEBI compliance

  • Improved investor experience

  • Faster time-to-market for new products

🧱 1. End-to-End Architecture Flow

🌐 Cloud-Hosted Microservices on Azure

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Users (Web, Mobile) | Azure CDN ➝ Azure Front Door ➝ Azure Application Gateway ➝ Azure Load Balancer ➝ API Gateway (Azure API Mgt) | [Microservices on AKS + Istio Service Mesh] — Auth via Azure AD SSO | ┌──────────────┬───────────────┬────────────────┐ │ Investor Svc │ Fund Info Svc │ NAV Engine Svc │ ├──────────────┼───────────────┼────────────────┤ │ Trade Svc │ KYC/AML Svc │ Portfolio Svc │ └──────────────┴───────────────┴────────────────┘ | Service Mesh with mTLS, Tracing (Istio) | Kafka Topics for async communication | Azure SQL / CosmosDB / Blob Storage | Monitoring: Azure Monitor, App Insights, Prometheus/Grafana | Admin & Ops Portals, Compliance Dashboard

🔐 Security & Network

  • Azure AD SSO for all services & dashboards

  • NSGs + Azure Firewall + Private Subnet (VNet)

  • WAF enabled at Front Door + App Gateway

  • All API calls secured with OAuth2 via API Management

🔁 2. Microservices Breakdown (Domain-Driven)

Domain Context

Microservices

Investor Onboarding

Investor Profile, KYC, Verification, Risk Profiling

Transactions

Trade Execution, Order Routing, Payment Gateway

Fund Management

NAV Engine, Fund Details, Holdings Sync

Portfolio Insights

Reports, Advisory Engine (GenAI/ML)

Compliance & Audit

SEBI Rules, Logs, Audit Trail, Consent Mgt

Admin Ops

User Roles, Product Config, Admin Portal

🧪 3. Mock CTO Interview Q&A (Whiteboard + Verbal)

⚙️ A. Architecture & Technology Decisions

Q: Why microservices over SOA/monolith?

Independence of domains (e.g., NAV vs KYC), scalability, team autonomy, continuous delivery. Avoids ESB bottlenecks.

Q: How do you handle service discovery and traffic routing?

Istio ingress gateway + Azure Internal Load Balancer + Kubernetes DNS. Azure Traffic Manager for global routing.

Q: How do you manage database per service vs shared?

Polyglot persistence: PostgreSQL for KYC, CosmosDB for logs and audit, Redis for caching, Kafka for event sourcing.

🔐 B. Security, Compliance, and SSO

Q: How is SEBI compliance ensured?

Immutable audit logs, role-based access, consent workflows, encryption at rest/in-transit, centralized access with Azure AD.

Q: How is Azure AD used for SSO?

OAuth2 + OIDC with Azure AD app registrations. API gateway validates tokens. Frontend integrated via MSAL.js or OAuth proxy.

☁️ C. Azure Cloud Services

Azure Component

Role in Architecture

Azure CDN

Caches frontend assets for low latency

Azure Front Door

Global traffic routing + SSL offloading + WAF

App Gateway + WAF

Layer 7 security, URL routing

Azure Load Balancer

L4 traffic distribution to AKS node pool

AKS + Istio

Container orchestration + service mesh (mTLS, routing)

Azure SQL + CosmosDB

Relational & NoSQL data storage

Azure Monitor + Log Analytics

App metrics, log analysis, alerting

Azure DevOps

CI/CD pipelines, GitOps, release orchestration

Azure Traffic Manager

Global failover & routing

Azure AD

Central identity & access management

🧠 D. DevOps & Observability

Q: How do you monitor distributed services?

Azure Monitor + Prometheus + Grafana for metrics. Istio + OpenTelemetry + Jaeger for traces. ELK for logs.

Q: What’s your CI/CD strategy?

Azure DevOps with multi-stage pipelines:
  • Build, scan, test, push to ACR

  • Deploy to AKS via Helm

  • Canary release with Istio

  • Automated rollback on failure

⚖️ E. Risk Management (Top 40)

#

Category

Risk

Priority

Mitigation Strategy

1

Business

Regulatory non-compliance

High

SEBI audit logs, compliance dashboard, RBAC

2

Business

Feature delay in product launch

Medium

Parallel development lanes, MVP-based sprints

3

Operations

Deployment failure

High

Blue-green deploy, rollback pipelines

4

Tech

API contract breakage

High

Consumer-driven contracts, Pact testing

5

People

Attrition of key SMEs

Medium

Cross-training, documentation, rotation

6

Infra

AKS cluster crash

High

Multi-zone AKS, daily snapshots, autoscaling

7

Security

Unauthorized access

High

Azure AD, Zero Trust, WAF, IDS/IPS

8

Compliance

Consent mismanagement

High

Explicit workflows, audit trail, encryption

9

Tech

Kafka topic overload

Medium

Partitioning, consumer group scaling, retention tuning

10

Data

Poor schema design

Medium

DB reviews, schema validation, normalization

11

Network

Latency spikes

Medium

Caching, CDN, VNet peering

12

Integration

Downstream API unavailability

Medium

Circuit breaker, retries, fallback pattern

13

Cloud

Cost overrun

High

Azure budgets, autoscaling, spot instances

14

People

Team skill mismatch

Medium

Upskilling, bootcamps, mentoring

15

Governance

Architecture drift

High

ARB governance, regular reviews

16

Security

Secrets exposure

High

Azure Key Vault, access policies

17

Compliance

Data residency violation

High

Region locking, blob encryption

18

Infra

DNS resolution failure

Medium

Traffic Manager fallback, Azure DNS redundancy

19

Ops

Lack of observability

High

Standardized logging, tracing, SLA dashboards

20

Tech

Service version incompatibility

Medium

Semantic versioning, feature toggles

...

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...

...

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🔧 Full risk matrix (Top 40) can be provided in Excel format upon request.

📈 Business Value Delivered

Metric

Before

After

Onboarding Time

4 days

2 hours

Release Frequency

Monthly

Weekly

Incident Resolution TAT

8 hours

<1 hour

Customer NPS

65

84

Compliance Audit Score

75%

100%

🧩 Summary CTA (for Interview Wrap-up)

“This end-to-end architecture has allowed us to deliver a highly scalable, secure, and SEBI-compliant platform—while giving investors a modern digital experience. I look forward to bringing the same strategic and hands-on approach to ABSLAMC’s technology vision.”

pls add to above case study entrprise vision,strategy , tech strategy aligned with business goal,capability map, capability-service-application mapping , text version architecture flow for a case study for any microservices


Here's the extended case study with enterprise vision, strategy, and architecture blueprint components that the CTO will expect you to articulate clearly. This is especially crucial in an enterprise like ABSLAMC, where business-technology alignment, regulatory compliance, and scalability are non-negotiable.

🔭 Enterprise Vision, Strategy, and Alignment

Enterprise Vision

“To deliver a seamless, secure, and personalized mutual fund investment experience across digital channels while staying fully compliant with SEBI and scaling to meet future investor demands.”

🎯 Business Strategy Goals

Business Goal

Description

Digital Transformation

Shift from legacy investor servicing to modern omnichannel digital platforms

Operational Efficiency

Automate onboarding, KYC, NAV publishing, and reduce service TAT

Regulatory Compliance

Achieve full SEBI alignment with traceability and auditability

Customer Experience

Improve investor onboarding, personalized insights, self-service

Scalability

Serve millions of investors and transactions with elasticity

🚀 Technology Strategy (Aligned with Business Goals)

Tech Focus Area

Strategic Initiative

Aligned Business Goal

Cloud-Native Architecture

Microservices on AKS with auto-scaling & containerization

Scalability, Agility

Security & Compliance

Zero-trust, RBAC, Audit trails, Azure AD, Data masking

Regulatory Compliance

DevOps & Automation

GitOps, CI/CD, Infra-as-Code, Canary Releases

Operational Efficiency

Observability

Central logging, tracing, SLO dashboards

Faster incident resolution, auditability

Innovation

GenAI-based investor assistant, Auto-ML for fraud/risk

Customer Experience

🗺️ Capability Map (Mutual Fund Digital Platform)

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Investor Experience ├── Digital Onboarding ├── Portfolio Insights ├── Self-service Operations Core Operations ├── Trade Execution ├── Fund Management ├── NAV Publishing Compliance & Risk ├── KYC & AML ├── Consent Management ├── Audit Trail Back-office Integration ├── RTA Sync ├── Settlement Engine ├── Fund Accounting Analytics & Insights ├── Customer Behavior Analytics ├── Fraud Detection ├── Investment Advisory (AI/ML)

🔗 Capability-to-Service-to-Application Mapping

Capability

Microservices

Applications/Systems

Digital Onboarding

KYC Service, Document Verifier, Risk Profiler

Investor Portal, Mobile App

Trade Execution

Order Service, Payment Service

Transaction Engine, Bank Gateway

Fund Management

NAV Engine, Fund Info Service

Fund Accounting, NAV Importer

Consent Management

Consent Svc, Notification Svc

SEBI Compliance Dashboard

Portfolio Insights

Advisory Engine, Reporting Service

Investor Web UI, AI Engine

Fraud Detection

Risk Analytics, Watchlist Scanner

ML Models, Auto ML Ops pipeline

🏗️ Text Version – Microservices Architecture Flow (with Azure)

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1. User Channel Layer: - Web/Mobile Apps - Integrated with Azure CDN for caching and performance 2. Ingress Layer: - Azure Front Door: SSL termination, WAF, traffic routing - Azure Application Gateway: L7 routing, WAF - Azure Load Balancer: Distributes traffic to AKS nodes - Azure Traffic Manager: Global failover and geolocation routing 3. API Gateway Layer: - Azure API Management: Request validation, throttling, logging - Azure AD for SSO with OAuth2 (user & service identity) 4. Microservices Layer (deployed on AKS with Istio): - Investor Svc, Trade Svc, KYC Svc, NAV Svc, Portfolio Svc, Risk Engine, Audit Svc - Istio Service Mesh: mTLS, traffic shifting, retries, observability 5. Asynchronous Communication: - Azure Event Hubs / Kafka: Inter-service pub-sub, event streaming - Durable Functions (if serverless) for workflow orchestration 6. Data Layer: - Azure SQL: Structured transactional data (KYC, NAV, Trades) - Cosmos DB: NoSQL for logs, audit trail, flexible investor data - Azure Blob Storage: Document uploads (KYC, mandates) 7. Observability: - Azure Monitor, Log Analytics, Prometheus, Grafana, Jaeger - Istio telemetry exported to dashboards 8. Security & Compliance: - Azure Key Vault: Secrets, connection strings, keys - Azure Firewall, NSG, VNet/subnets for layered network control - RBAC + Zero Trust enforced with Azure AD & API Mgt 9. CI/CD & DevOps: - Azure DevOps Pipelines with GitOps strategy - Terraform for infra provisioning - Helm charts for AKS deployment

🧯 Top Risks Reference

✅ Already provided earlier: Top 40 Risks with category, priority, and mitigation plan.

🧩 Final Wrap-up (Mock Interview Closing Summary)

“This architecture and strategy are purpose-built for scale, compliance, and agility. By aligning business capabilities with modern Azure microservices, we’ve reduced time-to-market for mutual fund operations, ensured SEBI audit readiness, and delivered an investor experience that’s digital-first, secure, and future-ready. I’d love to bring this same playbook, tailored for ABSLAMC’s vision, and collaborate with you on the next phase of your modernization journey.”

 
 
 

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