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Shanmuganathan S

@shanmuganathans

Backend Software Engineer at Sundaram Finance building Java microservices for eKYC and eNACH, with API latency reduced by 40%.

India

Message

At Sundaram Finance Ltd, I architect and maintain Java microservices for eKYC, eNACH recurring debits, and event-driven notifications. I reduced high-volume API latency by 40% through query and indexing improvements, and maintain 99.9% uptime by diagnosing production JVM bottlenecks.

I also built an event-driven reconciliation engine for my Co-Lending Control Tower project and an autonomous finance agent using Spring AI and MCP. Earlier, as a Technical Associate at Redisolve Software Pvt Ltd, I triaged production issues, validated SQL, and tested REST APIs.

Experience

Work history, roles, and key accomplishments

Current

Software Engineer

Current

Sundaram Finance

Feb 2024 - Present (2 years 8 months)

Role Overview:
Backend Engineer responsible for designing, building, and maintaining high-availability enterprise microservices using Java and Spring Boot. Own the end-to-end SDLC for critical financial products and foundational systems, focusing on secure API architecture, data privacy, and performance optimization.
Key Responsibilities & Achievements:
Microservices Architecture: Engineered an

Current

Software Engineer

Current

Sundaram Finance Ltd

Feb 2024 - Present (2 years 8 months)

Architected and maintained resilient Java microservices for eKYC, eNACH recurring debits, and event-driven notification systems using Apache Kafka. Implemented distributed systems patterns including idempotent consumers, dead-letter retry queues, and circuit breakers, and optimized query performance reducing API latency by 40%.

Java Spring Boot Kafka PostgreSQL Oracle DB REST APIs Microservices OAuth JWT RBAC GitHub Actions Jenkins Git GitHub Co Pilot Claude Code

Technical Associate

Redisolve Software Pvt Ltd

Nov 2020 - Nov 2021 (1 year)

Triaged production application logs, diagnosed system failures, and executed root cause analysis to resolve defect tickets and data discrepancies. Executed optimized SQL validation routines and validated REST API endpoints using automated Postman and Insomnia regression suites.

Java SQL REST APIs Postman Insomnia Root Cause Analysis