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Full-Time

Machine Learning Systems Engineer, Research Tools at Anthropic

Company Anthropic
Location San Francisco, CA | New York City, NY | Seattle, WA
Salary Competitive salary
Posted Posted on January 2, 2026

Job Description

Opening. We are seeking an experienced Machine Learning Systems Engineer to join our Encodings and Tokenization team at Anthropic. This cross-functional role will be instrumental in developing and optimizing the encodings and tokenization systems used throughout our Finetuning workflows.

What you'll do

  • Design, develop, and maintain tokenization systems used across Pretraining and Finetuning workflows
  • Optimize encoding techniques to improve model training efficiency and performance

What you need

  • Significant software engineering experience with demonstrated machine learning expertise
  • Experience with machine learning systems, data pipelines, or ML infrastructure

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