# Software Engineer, Pretraining Data at Cursor

- Company: Cursor
- Status: Open
- Workplace: On-site
- Location: Palo Alto, CA
- Level: Mid-level
- Discipline: Backend
- Employment: Full-time
- Posted: 2026-11-10
- Skills: Engineering, Machine Learning
- Apply: https://jobs.ashbyhq.com/cursor/d06d229f-eb2c-46d7-8e0f-96da5ecaec88

## Description

SpaceX was founded under the belief that a future where humanity is out exploring the stars is fundamentally more exciting than one where we are not. Today, SpaceX is actively developing the technologies to make this possible, with the ultimate goal of making life multiplanetary and expanding consciousness to the stars.

SpaceXSI is building Super Intelligence to help humanity understand the universe. Our teams are building the full Super Intelligence stack: from our Colossus supercomputers, to Grok models, to our suite of applications, including Grok Bot, Grok Build, Grok Imagine, Grok Voice, and X. We're creating a powerful flywheel where more compute trains better models, better models power more useful products, and what we learn from people using those products shapes what we build next.

SOFTWARE ENGINEER, PRETRAINING DATA

We're looking for Software Engineers to build the data systems behind our frontier models' initial training. You'll work on large-scale crawling, data platform, and pipeline infrastructure, turning raw dumps into the datasets our models train on, and making iteration with researchers fast and reliable.



RESPONSIBILITIES:

Data Platform:

 - Build the platform that turns raw web, code, multimodal, and acquired data into training-ready datasets for frontier pretraining runs

 - Own the pipelines, orchestration, and tooling that make pretraining data iteration fast, reliable, observable, and reproducible at scale

 - Create clear signals for data quality, lineage, freshness, and pipeline health so researchers can trust what goes into each run

 - Pa

More Cursor roles: https://deviantjobs.com/companies/cursor