Freelance Developer in Spain

About

Looking for a freelance developer registered in Spain? I am Kirill Strelnikov, a registered autónomo based in Barcelona. I specialize in Python, Django, and AI integrations, delivering production-ready software for businesses across Spain and Europe. From Madrid to Valencia, Málaga to Bilbao — I work remotely and deliver on time. My stack includes Django, PostgreSQL, Redis, Celery, Docker, OpenAI API, and more.

What I Build

• SaaS platforms with subscription billing
• AI-powered chatbots and assistants
• REST APIs and backend systems
• Telegram and WhatsApp bots
• E-commerce solutions
• CRM integrations and business automation
• Database design and performance optimization

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.