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Anthropic

Data Infrastructure Engineer, Pre-training

Anthropic · San Francisco, CA

Posted 13 days ago

or apply directly on Anthropic's site. We never take the application ourselves.

Is this posting real?

This role has been open
13 days
Anthropic's roles stay open a median of 40 days
Reposted
No
Salary listed
No
0% of Anthropic's roles list one
Ghost-job risk at Anthropic
high
276 stale, 19 reposted of 603 open
Hiring momentum
795 roles opened in the last 90 days
↑ up vs. the prior 90 days
Last confirmed on the employer's board
2026-09-17

Measured from postings appearing on and disappearing from Anthropic's own greenhouse board since 2026-08-03. Full hiring picture for Anthropic.

About this role

As a Data Infrastructure Engineer on the Pre-training team at Anthropic, you will design and implement data processing infrastructure for large language model training, focusing on scalability and performance. Your role involves developing core processing primitives, ensuring data quality, and collaborating with research teams to create effective data pipelines. This position combines practical engineering with cutting-edge AI research to contribute to the development of safe and trustworthy AI systems.

Our read on this posting3.2out of 5
benefits
3/5
freshness
4/5
career value
5/5
role clarity
4/5
pay transparency
0/5

Scored from the posting itself — how clearly the role is described, how much it says about pay and benefits, and how recently it was listed. Not a judgement of Anthropic as an employer.

What you need

  • 5+ years of experience outside of internships
  • Strong software engineering skills with experience building high-throughput fault-tolerant distributed systems
  • Hands-on experience with distributed computing frameworks, particularly Apache Spark
  • Excellent problem-solving skills and attention to detail
  • Strong communication skills and ability to work in a collaborative environment
  • Advanced degree in Computer Science or related field

Nice to have

  • Significant experience building high-throughput fault-tolerant distributed systems
  • Expertise with Python and Rust
  • Passionate about system reliability and performance
  • Comfortable working with ambiguous requirements and evolving specifications
  • Ability to take ownership of problems and drive solutions independently

What you get

  • Competitive compensation
  • Optional equity donation matching
  • Generous vacation and parental leave
  • Flexible working hours
  • Lovely office space for collaboration

Worth weighing

  • No specific mention of remote work flexibility beyond 25% in-office requirement
  • Visa sponsorship is available but not guaranteed for every role
  • Annual salary range is quite broad, which may indicate variability in compensation based on experience or negotiation

Summarised from Anthropic's posting. Read the full original.

Listed by Anthropic on their greenhouse job board, last confirmed open on 2026-09-17. PitchMeAI is not the employer.

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