Denis Ostapenko
Operations professional, AI and MCP practitioner. Off the clock: motorcycles, fishing, books.
Professional
Operations and logistics. AI agents and MCP infrastructure. UN Volunteer. Studying at the University of the People.
Personal
Vintage motorcycles. Fishing. American football. I read a lot and write a little. Quiet faith.
Vibe-coded
English ↔ Português
Small tools I built because I needed them and could not find the right version.
See the projects →Recent notes
I built the language app I wanted when I was learning Portuguese
I learned faster when words and context came before perfect grammar. So I vibe-coded a free English and Portuguese app around that idea.
A smart model cannot help if it has no one to call
Five containers split between Baltimore and Houston. The failure shows where LLM capability ends and reliable AI systems still fall short.
The 2017 paper that every AI chatbot is built on
The whole industry rides on a short chain of papers. Shannon, word2vec, the transformer, RLHF. Walk it once and the miracle goes away.