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Software Engineer, ML Research Tools

CURSOR • San Francisco, CA, US • published 2026-09-27 03:51:00.192777

Description

Engineering · Full\-time · San Francisco 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. ### **About the role** As a Software Engineer on the RL Data team, you’ll design and build the tools that researchers and external contributors use to create, review, submit, and monitor the environments and tasks behind Cursor’s reinforcement\-learning runs. This is a full\-stack product\-engineering role embedded in a research team. You’ll own the review and acceptance experience end to end: from rollout and transcript inspection, task\-quality signals grader and reward\-hacking analysis, to the workflows that move a submission into training. From there, you’ll build authoring interfaces that let researchers, vendors, and domain experts create and improve environments and tasks quickly and confidently. Your work will significantly shorten the loop fro...

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