About
About
I'm Maciej — an independent AI engineer based in Europe, working remotely with teams worldwide.
I've been writing Python professionally for 8 years. For the last 3, I've focused on AI/LLM systems — RAG, agents, structured outputs, LLM observability. I've worked at Roche, Teamwork.com, GCore, Universal Music Group, and several startups.
I'm not an "AI consultant" who makes slide decks. I write code, ship features, and deploy to production. When companies hire me, they get a senior engineer who also thinks about architecture, team structure, and business outcomes.
Technical
Technical
- → 8 years Python (Django, FastAPI, Celery)
- → 3 years AI/LLM (OpenAI, Claude, LangGraph, RAG)
- → Production — Roche (5,000+ users), Teamwork.com, UMG
- → Infrastructure — Docker, Kubernetes, AWS, Azure, CI/CD
- → Also — Go, TypeScript, PostgreSQL, Redis, MongoDB
Stack
Python Django FastAPI LangGraph LangChain OpenAI Claude RAG Celery Docker Kubernetes AWS Azure PostgreSQL Redis MongoDB Go TypeScript Langfuse LangSmith
Working style
How I work
- → Remote, async-first, flexible timezone
- → I use AI coding tools daily (Claude Code, Cursor + MCP)
- → Direct communication, ship fast, don't overengineer
- → Built and led AI teams (hiring, mentoring, architecture)
Languages
English — Fluent · Polish — Native · Spanish — Fluent · Portuguese — Advanced