Freelance Developer for German Businesses

About

Looking for a reliable freelance developer for your German business? I am Kirill Strelnikov, an EU-registered autónomo based in Barcelona, working in the same CET time zone as Germany. I have delivered projects for clients in Berlin, Munich, Hamburg, and Frankfurt. I specialize in Python backend development, AI integrations, and SaaS platforms. Communication in English, EU invoicing, GDPR compliance built into every project. Fixed-price contracts with milestone-based delivery.

What I Build

• SaaS platforms with multi-tenant architecture
• AI chatbots for customer support and sales
• REST APIs and backend systems
• Telegram and WhatsApp business bots
• E-commerce integrations and automation
• Database design and performance tuning
• Docker deployment and DevOps

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.