william [dot] computer

Hello. My name is William Sepesi.

I'm a machine learning researcher and engineer. I graduated from Washington University with a double major in computer science and mathematics.

My interests lie across reinforcement learning (particularly incomplete information), LLMs (particularly multimodal), and mechanistic interpretability. I've worked as an ML engineer and researcher at Microsoft, Square, and a handful of startups in these areas and beyond. I was also the Head Teaching Assistant for a variety of ML courses during my undergrad.

Outside of ML I enjoy music, travel, biking, contemporary art, and speaking French. You can contact me at hello [at] william [dot] computer or [at] robot__fan on Twitter, or find me on Github [at] wsepesi.