Python Backend Developer for Hire

About

Looking for a Python backend developer who writes clean, production-ready code? I am Kirill Strelnikov, a freelance backend engineer based in Barcelona with 15+ commercial projects under my belt. I build REST APIs, design database architectures, integrate third-party services, and deploy scalable systems. My primary stack is Python and Django, but I also work with FastAPI for high-performance async services.

What I Build

• REST API development (Django REST Framework)
• Database architecture (PostgreSQL, Redis)
• Third-party API integrations
• Background processing (Celery, Redis)
• AI and ML integrations (OpenAI, LangChain)
• Docker containerization and CI/CD
• Performance optimization and code audits

My tech stack: Python, Django, Django REST Framework, PostgreSQL, Redis, Celery, Docker, OpenAI API, LangChain, Telegram Bot API, Stripe, FastAPI, Nginx, Git, Linux.

How I Work

1. Free consultation — we discuss your project, requirements, and timeline. I provide a fixed-price estimate within 24 hours.

2. Development — iterative sprints with demos every 1-2 weeks. You see working software early and provide feedback.

3. Launch — deployment, monitoring, documentation. I handle the entire DevOps stack.

4. Support — ongoing maintenance, bug fixes, feature additions. Many clients continue on a retainer.

Learn more: Backend Development Services

Why Work With Me

• Fixed pricing — you know the cost upfront. No hourly surprises.
• Production-tested stack — Django, PostgreSQL, Docker. Proven across 15+ projects.
• Fast communication — Telegram, WhatsApp, email. Average reply under 2 hours.
• Registered in Spain — official autónomo in Barcelona. European invoicing, GDPR-compliant.
• Full ownership — you own 100% of the code. No vendor lock-in.