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, budget, and timeline. I help you prioritize features and avoid over-engineering.

2. Fixed-price proposal — I deliver a detailed scope document with milestones and a fixed total cost. No hourly tracking, no surprises.

3. Sprint-based development — Working software every 1–2 weeks. You test on a staging server and approve each milestone before I continue.

4. Deployment & support — I handle the full DevOps stack — Docker, SSL, monitoring. Ongoing maintenance available on retainer.

Learn more: Backend Development Services

Why Work With Me

• Registered autónomo in Barcelona — legal Spanish invoicing, IVA-compliant, European contracts.
• 15+ commercial projects — SaaS, AI chatbots, REST APIs, Telegram bots. Production track record.
• Full-stack delivery — I handle architecture, code, deployment, and support. No manager chains.
• GDPR built in — consent management, data export, and deletion workflows from the start.
• Direct communication — Telegram, WhatsApp, email. Average reply under 2 hours, any day of the week.