FastAPI Backend Developer

Muhammad Zaman builds high-performance Python backends using FastAPI with a focus on AI-integrated APIs, real-time streaming endpoints, multi-tenant architecture, and production reliability. Based in Faisalabad, Pakistan and available for remote engagements.

Capabilities

• FastAPI with async/await, dependency injection, and type safety
• WebSocket and Server-Sent Events for real-time streaming
• PostgreSQL and schema-per-tenant multi-tenancy
• Redis for session state, caching, and rate limiting
• JWT authentication with refresh token rotation
• OpenAI API and LangChain integration with streaming support
• Docker containerization and Railway or AWS deployment

Technologies

FastAPI · Python · PostgreSQL · Redis · WebSockets · Docker · Railway · AWS · OpenAI API · LangChain