Research Engineer – Cybersecurity RL

Position Overview

The Horizons team leads Anthropic's reinforcement learning (RL) research and development, playing a critical role in advancing AI systems. As a Research Engineer on the Cybersecurity RL team, you'll help safely advance the capabilities of models in secure coding, vulnerability remediation, and other areas of defensive cybersecurity. This role blends research and engineering, requiring you to develop novel approaches and realize them in code.

Responsibilities

• Design and implement RL environments
• Conduct experiments and evaluations
• Deliver work into production training runs
• Collaborate with other researchers, engineers, and cybersecurity specialists across and outside Anthropic

Requirements & Skills

• 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 developing safe and beneficial systems

Strong candidates may also have:

• 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
• Familiarity with RL techniques and environments
• Familiarity with LLM training methodologies