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Data Infrastructure Engineer, Pre-training

Menlo Ventures Portfolio

San Francisco, CA · Staff

$500,000 – $850,000

Listed on Menlo Ventures Portfolio’s own careers site. You apply with them directly — we never stand between you and the employer.

What this role is

Anthropic is hiring a Staff-level engineer to build the data infrastructure that prepares massive text corpora for training large language models. You'll design scalable, reliable systems for tokenization, deduplication, and quality assurance—bridging research innovation with production engineering at one of the leading AI safety organizations.

Our summary, not Menlo Ventures Portfolio’s wording. The full posting is on their site.

Skills this role names

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What they ask for

Required

  • 5+ years of software engineering experience
  • Experience building high-throughput fault-tolerant distributed systems
  • Hands-on experience with Apache Spark or similar distributed computing frameworks
  • Bachelor's degree in Computer Science or related field

Nice to have

  • Experience with language model training infrastructure
  • Background in Data Infrastructure, MLOps, or ML infrastructure
  • Expertise in Python and Rust
  • Experience with web-scale data processing
  • Familiarity with machine learning research requirements

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