Open to opportunities

Hamza Rehman

@hamzarehman3

AI Backend Engineer building production FastAPI services, scalable LLM-powered features, and CPU-friendly computer vision.

Pakistan

Message

What I'm looking for

I’m looking for a role where I can build scalable backend services with FastAPI and deploy reliable, production-ready AI systems—especially LLM/RAG features and CPU-friendly computer vision—while working in a team that values clean architecture and fast iteration.

I’m an AI Backend Engineer focused on building production-ready RESTful APIs and scalable backend systems. In my recent role, I engineered high-traffic FastAPI services, implemented OAuth2/JWT authentication, and built a low-latency real-time chat system with WebSockets and asynchronous PostgreSQL. I also containerized full stacks with Docker and optimized deployments using Nginx and Gunicorn on DigitalOcean.

I bring AI into real products through production LLM integrations, RAG workflows, and structured-output pipelines using Pydantic. I’ve worked on end-to-end applications that turn unstructured documents into reliable machine-readable data, and I’ve built CPU-efficient computer vision pipelines like real-time traffic tracking. I enjoy designing systems that are secure, measurable, and easy to deploy—so AI capabilities can scale reliably.

Experience

Work history, roles, and key accomplishments

AI Backend Engineer

D-Tech & Consultancy

Jan 2025 - Aug 2025 (7 months)

Built production-ready RESTful services with FastAPI, including multi-tenant role support and secure OAuth2/JWT authentication flows. Developed real-time chat with WebSockets and async PostgreSQL, and integrated LLM-powered features using RAG workflows and structured output with Pydantic.