Data Infrastructure Engineer, Pre-training

Anthropic · San Francisco

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Company
Anthropic
Location
San Francisco
Salary
$500,000 — $850,000
Posted
November 3, 2025

About this job

We are seeking a Staff level Engineer to join our Pre-training team, responsible for developing the next generation of large language models. In this role, you will work at the intersection of cutting-edge research and practical engineering, contributing to the development of safe, steerable, and trustworthy AI systems. Responsibilities Design and implement data processing infrastructure for large language model training (highly performant, reproducible, traceable) Develop and maintain core processing primitives (e.g., tokenization, deduplication, chunking) with a focus on scalability Build robust systems for data quality assurance and validation at scale Collaborate with research teams to implement novel data processing architectures Build and operate end-to-end data pipelines that turn…

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Data Infrastructure Engineer, Pre-training — Anthropic | NewLuxJob