AWS Microservices Migration & Cost Optimization
Tech: .NET Core, AWS SQS, Lambda, API Gateway, Fargate, ECS, Terraform
Context: Legacy Classic ASP/.NET 4.6.1 app with rising ops costs, brittle release cycles, and scaling challenges.
Approach: Domain assessment → microservice decomposition → serverless patterns (SQS/Lambda) where fit → containers on Fargate/ECS for others. Introduced CI/CD with CodeBuild/CodePipeline and Infra as Code.
Results: ~25% infrastructure cost reduction; improved fault‑tolerance; deployment cycles stabilized; faster incident recovery.