Software Engineer (Project Lead) at SupplierScout

Developed an AI-powered supplier sourcing product with a React and TypeScript frontend and a Node.js backend, enabling procurement teams to search suppliers, review enriched profiles, and initiate outreach from a single workflow. Optimized supplier search and ranking backed by PostgreSQL and Redis, reducing average query latency by 40% and improving top-result relevance by 25% across repeat searches. Deployed a multi-tenant production environment on AWS ECS Fargate behind API Gateway, served the frontend via S3 and CloudFront, and enforced secure access and tenant isolation through identity-based controls and managed secrets. Built CI/CD pipelines using GitHub Actions and AWS CodePipeline to deploy containerized services to Kubernetes EKS, cutting release cycles from weekly to daily and reducing post-release defects by 70%.

Software Engineer at SaaS Platform Billing System

Built a subscription billing and invoicing system with Spring Boot and JavaScript, exposing internal admin APIs via GraphQL for plan changes, refunds, and audit queries across customer accounts. Orchestrated asynchronous payment workflows with KaVa and AWS Lambda, reducing failed retries by 35% and improving peak-cycle processing throughput by 2× with back-off and dead-letter handling. Improved production visibility by instrumenting key billing KPIs with Prometheus and operational dashboards in Grafana, cutting mean time to detection by 45% through alert-driven monitoring. Hardened reliability and debugging by adding tracing in OpenTelemetry, centralized monitoring in CloudWatch, and structured log search in ELK, reducing mean time to recovery and improving RCA turnaround by 35%.