cursor
CareersSoftware Engineer, RL EnvironmentsEngineering · Full-time · San FranciscoApply↓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 RoleOne of our north stars is a future where teams can hire Grok as a remote colleague. Reaching that future requires training our models in realistic, diverse environments that support complex, end-to-end work across domains.As a Software Engineer on the RL Environments team at Cursor, you’ll build the systems that turn real-world data into high-quality environments and tasks for reinforcement learning. You’ll create dramatically more realistic training environments while owning the shared platforms and quality layers that help us produce trustworthy data quickly and at scale.This role sits at the intersection of research, data, and engineering. You’ll work closely with ML Platform and research teams to turn company data, Grok Bot interactions, vendor-built tasks, tutor data, acquired data, and synthetic data into training-ready environments. Your work will make high-quality RL data easier to create, validate, discover, and use across our model-training efforts.What you’ll work onBuilding platforms that allows us to build complex, realistic, and diverse RL environments at scale, that support end-to-end tasks across knowledge-work domains.Designing end-to-end factory that turns massive raw data into useful and realistic environments.Defining and applying consistent quality standards across vendor, tutor, acquired, and synthetic data.Creating self-serve APIs and tooling that accelerate task and environment development for internal teams and external contributors.Partnering across research, platform, and external teams to translate model-capability goals into effective training tasks and environments.You may be a fit ifYou have strong software engineering fundamentals and experience with data platforms, developer tools, distributed systems, or ML infrastructure.You can turn ambiguous quality standards into concrete, automated checks.You’re comfortable building repeatable pipelines from messy, heterogeneous data.You care about model behavior and can translate capability goals into tasks and experiments.You collaborate well across disciplines and own open-ended problems end to end.ApplyingIf there appears to be a fit, we'll reach out to schedule 2-3 short technicals. After, we'll schedule an onsite in our office, where you'll work on a small project, discuss ideas, and meet the team.Apply for this roleName Email Resume↥ Upload fileLinkedIn URLGitHub ProfilePlease write a short note on a project you're proud of:Will you now or in the future require visa sponsorship to work in the country where this position is located?*YesNoU.S. EQUAL EMPLOYMENT OPPORTUNITY INFORMATION (Completion is voluntary and will not subject you to adverse treatment)Anysphere, Inc. provides equal employment opportunities to applicants and employees without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, protected veteran status, disability, or any other classification protected by applicable law.We invite all applicants to voluntarily self-identify their race, ethnicity, and gender. Submission of the information on this form is strictly voluntary and refusal to provide it will not subject you to any adverse treatment. Information obtained will be retained in a confidential file and separate from personnel records. This information may only be used in accordance with the provision of applicable federal laws, executive orders, and regulations. If you want more information about any of the sections, please check with a company representative.GenderMaleFemaleDecline to self-identifyRaceHispanic or LatinoWhite (Not Hispanic or Latino)Black or African American (Not Hispanic or Latino)Native Hawaiian or Other Pacific Islander (Not Hispanic or Latino)Asian (Not Hispanic or Latino)American Indian or Alaska Native (Not Hispanic or Latino)Two or More Races (Not Hispanic or Latino)Decline to self-identifySELF-IDENTIFICATION OF VETERAN STATUS (Completion is voluntary and will not subject you to adverse treatment)If you believe that you belong to any of the following categories of protected veterans, please indicate by making the appropriate selectionDisabled veteran – A veteran who served on active duty in the U.S. military and is entitled to disability compensation (or who but for the receipt of military retired pay would be entitled to disability compensation) under laws administered by the Secretary of Veterans Affairs, or was discharged or released from active duty because of a service-connected disabilityRecently separated veteran – A veteran separated during the three-year period beginning on the date of the veteran's discharge or release from active duty in the U.S military, ground, naval, or air serviceActive duty wartime or campaign badge veteran – A veteran who served on active duty in the U.S. military during a war, or in a campaign or expedition for which a campaign badge was authorized under the laws administered by the Department of DefenseArmed forces service medal veteran – A veteran who, while serving on active duty in the U.S. military, ground, naval, or air service, participated in a United States military operation for which an Armed Forces service medal was awarded pursuant to Executive Order 12985 (61 Fed. Reg. 1209).Veteran StatusI identify as one or more of the classifications of protected veteran listed aboveI am not a protected veteranI decline to self-identify for protected veteran statusHas someone at Cursor or Graphite referred you for this role? If so, please include their email hereSubmit application →