Research Scientist

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 Scientists who can drive effective RL or mid-training research in a small-team setting. You’ll own ambiguous, hard research problems end-to-end: forming hypotheses, designing experiments, building the training/eval/data needed to test them, and pushing results into the next model. You should expect significantly more scope and autonomy than in other research labs.

Improve our understanding of RL, what it takes to handle longer horizon tasks, and train with less compute

Train graders to improve performance on coding tasks with non-verifiable reward

Improve the quality and difficulty of datapoints we use for training our models

Realtime RL for coding agents

You have a deep background in RL and strong machine learning fundamentals

You’re an excellent programmer and software engineer

You can handle ambiguous research tasks with little guidance