Research Engineer, Cybersecurity RL (Reinforcement Learning)

Anthropic · Zürich, CH · Security · listed September 7, 2026

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The shape of it

Seniority
Not stated
Where
Hybrid
Requirements listed
5
Length
908 words

In the posting’s own words

At Anthropic, we are pioneering new frontiers in AI that have the potential to greatly benefit society. However, developing advanced AI also comes with risks if not properly safeguarded. As a Research Engineer, you'll help to safely advance the capabilities of our models in incident response, security analysis, vulnerability remediation, and other areas of defensive cybersecurity.

What it asks for · 5

  • Have experience with machine learning.
  • Have experience in cybersecurity research.
  • Have strong software engineering skills.
  • Can balance research exploration with engineering implementation.
  • Are passionate about AI's potential and committed to developing safe and beneficial systems.

Also a plus

  • Professional experience in security engineering, fuzzing, detection and response, or other applied defensive work.
  • Experience participating in or building CTF competitions and cyber ranges.
  • Academic research experience in cybersecurity or other experimental & research background.
  • Familiarity with RL techniques and environments.
  • Familiarity with LLM training methodologies.

What the job covers

  • Partner with researchers and safety teams across Anthropic to understand their analytical needs and build solutions
  • Develop agentic integrations that allow AI systems to autonomously investigate and act on analytical findings
  • Contribute to the strategic direction of the team, including decisions about what to build, what to partner on, and where to invest
  • This role may require participation in an on-call rotation.

Tools and skills named

Models & research
  • Machine learning4×
  • Evaluations
  • LLM
Security & compliance
  • Security4×
Ways of working
  • On-call

Words the posting leans on

  • cybersecurity6×
  • experience6×
  • research6×
  • engineering4×
  • security4×
  • researchers3×
  • systems3×
  • analytical2×
  • background2×
  • build2×
  • defensive2×
  • develop2×
  • developing2×
  • engineer2×
  • experience cybersecurity2×
  • familiarity2×

Counted from the posting after the mission statement and the legal notices are set aside. The ones near the top are the ones a screener is looking for.

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How this page was made

An automated read of a public job posting, fetched September 8, 2026 and last changed by Anthropic on September 7, 2026. Every list above is pulled from the posting’s own sentences — nothing rewritten, nothing added, no judgment about the role or the company. Counts and seniority are read off the text by rule, so they can be wrong where the posting is unusual. The original is the only thing that binds. Openings close without warning; check the source before spending an evening on it.