A collection of systems built, architectures designed, and problems solved over many years
Architected and led development of a high-throughput payment processing system handling 50K+ transactions per second with 99.99% uptime. Implemented event-driven architecture with CQRS pattern for eventual consistency.
Led migration of legacy on-premise infrastructure to multi-region AWS deployment. Achieved 60% cost reduction while improving availability and reducing deployment time from weeks to minutes.
Built a real-time analytics platform processing 2TB+ of data daily. Implemented Lambda architecture for both batch and stream processing, enabling sub-second query response times on billion-row datasets.
Created an open-source API gateway framework with built-in rate limiting, authentication, caching, and observability. Used by 500+ companies with 2K+ GitHub stars and active community contributions.
Designed and executed migration strategy for legacy monolith to microservices architecture without any service interruption. Enabled parallel run of old and new systems with feature toggles and gradual traffic shifting.
Implemented comprehensive observability solution with distributed tracing, metrics, and centralized logging. Reduced MTTR by 70% and enabled proactive incident detection before customer impact.