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Research Engineer, Cybersecurity RL

About Anthropic Anthropic’s mission is to create reliable, interpretable, and steerable AI systems. We want AI to be safe and beneficial for our users and for society as a whole. Our team is a quickly growing group of committed researchers,

Company

Anthropic

Location

San Francisco, CA; New York City, NY

Status

Open

Posted

2026-11-08T19:12:32+00:00

Anthropic is hiring a research engineer for the Cybersecurity RL team inside its Horizons group, which works on reinforcement learning research and development. The role combines research and engineering: designing RL environments, running experiments and evaluations, and moving work into production training runs for secure coding and vulnerability remediation. The posting asks for cybersecurity research experience, machine-learning experience, and strong software engineering skills, with applied security or CTF experience useful. It is distinctive for pairing defensive cybersecurity domain expertise with RL and LLM training work.