Jonathan LebensoldFounder

Canada - Montreal, Quebec

I build tools that make AI systems trustworthy.

As CEO of Jetty, I'm on a mission to bring accountability, traceability, and reproducibility to AI deployment. In a world racing to ship AI, we're building the infrastructure that lets teams actually know what their models are doing -- and show it.

Before founding Jetty, I spent a decade moving between building and research. I wrote the React Native Cookbook for O'Reilly, co-founded a software consultancy, and shipped products for startups and enterprises.

Then I went deep on the science side -- completing a PhD at McGill/Mila under Borja Balle and Doina Precup, researching privacy-preserving ML at Meta AI, and working on AI reasoning at Reliant AI.

That combination -- building production systems and studying what can go wrong with them -- is what drives Jetty. We're working with MLCommons and Mila to create open-source tools for model provenance and AI governance that actually work in practice, not just in policy documents.

If you're deploying AI in healthcare, finance, or any domain where "trust me, it works" isn't good enough, I'd love to talk.

Currently: CEO @ Jetty | AI Lead @ Akinox | Mila Startup Program
Previously: Meta AI | Reliant AI | McGill/Mila PhD
Writing: https://lebensold.substack.com