I will build a rest API backend using python fastapi or nodejs

Looking for a reliable backend developer who writes clean, production-ready code? You're in the right place. I'm a backend developer with a strong foundation in Python, Node.js, and system design, backed by real competitive programming results (LeetCode Knight, top 3.5% globally; CodeChef 4-Star; Codeforces Specialist).

What I can build for you:

• RESTful APIs using FastAPI or Node.js/Express
• Database integration (MongoDB, SQL, Redis)
• Authentication systems (JWT, OAuth 2.0)
• Rate limiting, input sanitization, and security best practices
• Clean, well-documented, scalable code

Recent work includes building an AI-powered recommendation engine (Python/FastAPI) processing 2,500+ data points, and securing a full-stack dashboard handling 4,000+ live data points with OAuth 2.0, Redis caching, and multi-layer rate limiting reducing DB writes by 40% while maintaining sub-200ms latency.

I care about writing code that's not just functional, but maintainable proper separation of concerns, fault-tolerant design, and clear documentation every time.

Why work with me:

• Fast, clear communication
• Deadlines taken seriously
• Revisions handled without friction
• Genuinely invested in getting your project ready