Software Engineer, ML Research

Cursor is building the future of coding. We train frontier coding agents and scale RL on real user data to make them increasingly effective.

We’re looking for Research Engineers to build the training, inference, and data systems behind our frontier coding models. You’ll work directly with researchers to make progress repeatable and iteration fast.

Build our distributed training, inference, and RL infrastructure

Write libraries to simplify how researchers do large-scale data jobs

Architect the systems that turn Cursor user data into effective training data

You have a strong infrastructure/distributed systems background

You are able to architect and ship end-to-end with high ownership

You have strong intuitions about how language models work

You’re excited to learn more about ML

#LI-DNI