Ni Ni Tin Win

I turn real-world problems into AI products that work.

Product engineer and operator turned builder. Builder of MatchingEngine, an open-source AI compatibility engine.

AI systems, product design, and data operations.

About

I spent years operating and designing systems before realizing I wanted to be the person building them.

Today I'm an operator turned builder. I combine product thinking, design, and hands-on engineering to turn ambiguous problems into working products.

I built MatchingEngine, an open-source compatibility engine that bounds what the model can influence and validates its output in code, with an eval harness that catches ungrounded reasoning. Before that, a real-time voice agent wired to three live APIs, built and demoed in a day. Python, FastAPI, React.

Now I'm building RoomFit, a room-matching platform in San Francisco.

At an AI robotics startup, I joined with no prior experience in the field and was promoted after seven months. I automated a manual scheduling process, cutting planning from 5 hours to 1.5, and trained operators as the operation scaled from 25 to 130 across 10 sites. That work was the human layer behind AI training data.

Operations taught me how systems break. Design taught me how to make them legible. Engineering let me ship the fix. If you're building something and think there could be a fit, feel free to reach out.