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I will custom backend API service development


Hakan Ç
About this gig
Need a reliable backend API for your website, mobile app, or business platform?
I build custom RESTful backend services that are secure, fast, and production-ready fully tailored to your needs.
Using FastAPI, Flask, or Node.js (Express), I create efficient endpoints, connect databases, and implement authentication, error handling, and documentation so your API is ready for real-world use.
Get to know Hakan Ç
Hakan Ç
- FromTurkey
- Member sinceOct 2025
Languages
English, Turkish
Legal_ai – Legal RAG-based assistant using Qdrant and SentenceTransformers for Turkish law documents.
AI Horoscope App – Personalized astrology chatbot built with FastAPI and React Native integrated with OpenAI API.
Smart ATM Lock System – OTP-secured IoT platform for banking and fintech infrastructures.
Object Detection and Tracking System – Real-time vision analytics using YOLOv11 and TensorRT on Jetson Nano.
Electricity Market Analysis – Python-based data analysis and visualization of Turkish energy market data.
FAQ
Can you integrate external services?
Yes — I can connect your API to Stripe, Firebase, or other third-party systems.
Is the API production-ready?
Yes — all code follows best practices and includes testing.
Will I get documentation?
Absolutely. Swagger or Postman documentation is included in all packages.

