Akash kalyan

I’m a full-stack developer with strong experience across both frontend and backend systems. I’m proficient in building responsive user interfaces with React/Next.js and developing scalable backend services using Node.js, REST APIs, and PostgreSQL.

I focus on building reliable, end-to-end web applications with careful attention to data integrity, transactions, and concurrency. In my TicketBlitz project, I designed a concurrency-safe seat booking system using PostgreSQL row-level locking and ACID transactions, enforcing a strict state machine (available → held → booked) under concurrent access.

I also enjoy building production-style systems—like ProdWatch, where I implemented JWT authentication and role-based access control (RBAC) and used immutable incident timelines with PostgreSQL trigger-based audit logging. With ChitChatGPT, I built a multi-user real-time chat platform using WebSocket communication (Socket.io) and integrated Google Gemini APIs to support AI-assisted chat features.