Siarhei Thor

About Me

I am an AI/ML Engineer based in Zurich, building practical machine learning and LLM-powered systems for real-world products.

My focus is applied ML, LLM applications, retrieval systems, backend APIs, and AI product infrastructure. I work mainly with Python, FastAPI, Pydantic, scikit-learn, XGBoost, pandas, SQL, Docker, and modern LLM tooling.

I have built production ML services for endurance-sports analytics, AI-assisted data enrichment workflows, conversational analytics systems for survey data, and Telegram-based AI products for learning, productivity, and tracking.

My background in architecture and computational design gives me a strong product and systems perspective. I like turning vague, messy problems into structured, working tools.

Siarhei Thor