Gnanasree

Built Python-based backend services and REST API endpoints using FastAPI to power high-throughput workloads on AWS ECS. Designed event-driven processing pipelines with Kafka and Lambda to handle asynchronous notifications and feed delivery. Led legacy system migration moving batch file workflows to cloud-native services on AWS infrastructure. Developed service components powering member profiles and connection flows across personalized feeds and notification systems. Drove operational excellence with capacity reviews, dependency audits, and on-call enablement. Implemented OAuth2.0 / IAM-based SSO authentication for securing internal APIs and services. Improved profile fetch latency by 33% via batched lookups and prefetch caching. Implemented task queues with SQS and Redis to decouple high-volume backend processing. Collaborated with Growth/Engagement teams to ship A/B tested features impacting retention.

Owned DevSecOps pipelines enforcing SOX-compliant security gates across 14 critical backend services. Implemented secure API contracts with TLS, request signing, and rate limiting for inter-service communication. Built Axway FTP ingestion layers routing for event-driven processing queues; built event-sourced ledger services maintaining auditable history of account state transitions. Migrated legacy batch workflows to modern Java-based pipelines; designed onboarding flows with KYC validation and documentation processing. Established automation and documentation to support onboarding and production readiness.

Owned DevSecOps pipelines enforcing SOX-compliant security gates across 14 critical financial backend services. Implemented secure API contracts with TLS, request signing, and rate limiting for inter-service communication. Built Axway FTP ingestion layers routing settlement files to event-driven processing queues for audit review. Created event-sourced ledger services maintaining auditable history of account state transitions for compliance. Migrated legacy batch workflows to modernized Java service layers. Reduced batch settlement processing time by 47% through query optimization and partitioned processing. Mentored junior engineers on testing standards, code reviews, and technical documentation.