Project 01
Government Sector — POL Client (AWS)
Serverless Middleware for Legacy & Modern Systems
Designed a serverless middleware that converts SOAP requests from legacy systems into JSON for modern services, reducing integration complexity.
Built end-to-end AWS CDK stacks for Lambda, API Gateway (private), DynamoDB, IAM, VPC, and CloudWatch dashboards.
Secured the platform using WAF IP whitelisting, private API Gateway, and Route 53 inbound resolver for on-prem DNS resolution.
Built multi-env CI/CD pipelines via GitHub Actions, cutting manual release effort by 80%.
Load tested at 200 TPS sustained for 1 hour with stable Lambda performance.
Implemented SQS buffering, Lambda retries, DLQs, and idempotency keys — achieving zero message loss.
Created CloudWatch dashboards tracking invocation counts, latency, and errors — reducing troubleshooting time by 40%.
Sub-Project
Centralised Event-Driven Monitoring Platform
Built a centralised monitoring platform aggregating CloudWatch alarms across distributed systems.
Implemented EventBridge → SNS/SQS → Lambda routing orchestrated via Terraform, enabling decoupled alert delivery.
Built a metadata enrichment pipeline (severity, owner mapping, runbook links) to reduce investigation time.
Automated Microsoft Teams notifications via webhook for real-time on-call delivery.
Reduced MTTR by 30% via CloudWatch dashboards visualising alarm trends, latency, and failure patterns.

