Ivan Leo/blog

I work on Developer Experience at Google DeepMind, where I focus on making it easy to build on Gemini and spend a lot of time thinking about evaluating autonomous agents. Previously, I built general-purpose action engines for knowledge work at Manus (acquired by Meta) and worked on open-source libraries like Instructor which made it easy to get reliable structured outputs for language models using Pydantic.

I like large wide spaces and once spent a month traveling across Russia and Mongolia on the Trans Siberian Railway. I started working on Language Models after becoming fluent in French (B2) and decided I should do something more productive for my career. I like spicy food a lot - especially a good 干锅。

I also angel invest and advise companies. Reach out if interested.

Selected Essays