Research Engineer, Cybersecurity RL
Anthropic · San Francisco, CA | New York City, NY
About this role
**Research Engineer, Cybersecurity RL (Horizons) — Anthropic** **About Anthropic** Anthropic’s mission is to create reliable, interpretable, and steerable AI systems—safe and beneficial for users and society. **About Horizons** Horizons leads Anthropic’s reinforcement learning (RL) research and development, with significant impact on Claude’s autonomy, coding, and reasoning capabilities. **About the role** Join the **Cybersecurity RL team** as a **Research Engineer**. You’ll help safely advance model capabilities in **secure coding**, **vulnerability remediation**, and other **defensive cybersecurity** areas. This is a blend of research and engineering. You’ll: - Design and implement **RL environments** - Run **experiments and evaluations** - Deliver work into **production training runs** - Collaborate with researchers, engineers, and cybersecurity specialists across and outside Anthropic You should have **cybersecurity domain expertise** and interest/experience in **training safe AI models** (e.g., white-hat hacker, security engineer, detection & response professional). **You may be a good fit if you:** - Have experience in **cybersecurity research** - Have experience with **machine learning** - Have strong **software engineering** skills - Can balance **research exploration** with **engineering implementation** - Are passionate about AI’s potential and committed to **safe, beneficial systems** **Strong candidates may also have:** - Professional experience in security engineering, **fuzzing**, **detection & response**, or other applied defensive work - Experience with **CTFs** and/or **cyber ranges** - Academic research experience in cybersecurity - Familiarity with **RL techniques and environments** - Familiarity with **LLM training methodologies** **Compensation** - **Annual Salary:** **$500,000 — $850,000 USD** **Logistics** - **Minimum education:** Bachelor’s degree (or equivalent combination of education/training/experience) - **Required field of study:** Relevant to the role - **Location-based hybrid policy:** Expect to be in an office at least **25% of the time** (some roles may require more) - **Visa sponsorship:** Available, but not guaranteed for every role/candidate **Apply / Safety note** Anthropic recruiters only contact candidates from **@anthropic.com** (or vetted agencies acting on Anthropic’s behalf). Legitimate recruiters will **never** ask for money/fees/banking info before your first day. If unsure, verify at **anthropic.com/careers**.
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