oleszczyk.dev
From: Poland
Location: Poradzew, PL
On Useme since 2 September 2025
About me
AI Engineer | RAG, AI agents, LLM automation
I build LLM-based solutions end-to-end: from problem analysis and data preparation, through LLM integration and information retrieval, to APIs and deployment.
Experience
- At LG Energy Solution I designed, deployed and maintained a RAG system for searching 30,000 technical reports.
- I currently build AI agents in the Microsoft ecosystem as my full-time role.
What I can help with
- chatbots that answer questions from your company documents
- AI agents that handle multi-step tasks
- process automation with LLMs
- integrating AI with APIs, databases and existing systems
- AI backends in Python/FastAPI, including deployment
Stack: Python, FastAPI, LangChain, LangGraph, Microsoft Agent Framework, Azure AI Search, Copilot Studio, Docker, AWS, GCP
Tell me what you need and I'll tell you how I'd approach it.
CV / Résumé
Apr 2026 - Now
AI Engineer
Axito Sp. z o.o.
I build an AI agent that answers questions from PDF documentation and websites, with search powered by Azure cloud services. I also build Copilot Studio agents and process automations in Power Automate.
Jun 2021 - Mar 2026
Equipment Engineer / Senior Equipment Engineer
LG Energy Solution
Built and maintained an AI search system (RAG) over ~30,000 technical reports, replacing keyword search. Also built analytics dashboards and automated reports on production data.
Portfolio
AI agent that researches any topic on its own: it plans the search, gathers web sources, checks coverage and writes a report with citations. For deep-dive research the user approves the plan first. Progress is streamed live.
AI assistant that answers questions based on technical documentation. It searches over 4,000 chunks from 385 files and returns answers with sources. FastAPI backend deployed on GCP with automated CI/CD.