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Join Cursor as a Software Engineer on the RL Data team to create tasks and environments for training coding agents, contributing to the future of coding automation.
Our mission is to automate coding. The first step in our journey is to build the best tool for professional programmers, using a combination of inventive research, design, and engineering. Our organization is very flat, and our team is small and talent dense. We particularly like people who are truth-seeking, passionate, and creative. We enjoy spirited debate, crazy ideas, and shipping code.
WHAT YOU’LL DO
- Designing a task set that teaches a specific agent capability, then iterating on it from traces and evals until the model actually gets better.
- Reading a pile of agent traces, finding a failure mode or a surprising behavior, and building a system that surfaces more of the same.
- Turning a one-off recipe into something other teams can reuse: better rewards, cleaner environments, tighter data quality.
- Partnering with research on whether a dataset is actually teaching the thing we think it is.
YOU MAY BE A FIT IF
- You write careful, fast code and have strong software engineering fundamentals.
- You like setting tasks: breaking a fuzzy capability into something concrete you can measure.
- You have an infra, data, or distributed systems background. RL experience is a plus, not a requirement.
- You enjoy looking at messy real-world agent behavior and turning it into a dataset or a tool.