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# Staff Pre-Training Data Infrastructure Engineer

- **Company:** Anthropic Limited
- **Location:** San Francisco, CA, United States
- **Experience:** Expert
- **Contract:** Internship / Graduate position
- **Skills:** Training Data, Distributed Systems, Data Processing, Large Language Models, Apache Spark, Machine Learning Operations
- **Published:** November 7, 2026
- **Apply:** https://www.juju.com/job/28_25304_7ac751409aaab447b711eda586915bff

## About the Role

Strong background in distributed systems, Spark, and ML infrastructure is essential. The role requires 5+ years of experience outside internships, advanced CS education, and a passion for safe,
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## Description

Anthropic is seeking a Staff-level Engineer for the Pre-training team to advance the next generation of large language models. You will design scalable data processing infrastructures, implement data quality systems, and collaborate with research teams to turn web-scale data into training-ready datasets.