Architected and maintained a distributed system of 10+ ASP.NET Core microservices (API Gateway/BFF, Identity, Inventory, Store, orchestration) on PostgreSQL, RabbitMQ/MassTransit, Redis, Docker and CI/CD.
- Cut data-access API latency by up to 50% by optimizing .NET hot paths, EF Core / PostgreSQL queries and response aggregation
- Built distributed transaction orchestration with MassTransit Saga across 4 services
- Designed Kubernetes deployment workflows with Helm, GitLab CI/CD, zero-downtime releases