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Research Engineer, Cybersecurity RL (Reinforcement Learning)

AnthropicSan Francisco, CA | New York City, NYAI Research & Engineering
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Salary
Not listed
Job type
Full-time
Posted
9 Dec 2025
Status
Open · checked 7d ago

About this role

Role Overview

Anthropic is hiring a Research Engineer for the Cybersecurity RL team within the Horizons group in San Francisco, CA, or New York City, NY. This position suits professionals blending domain expertise in cybersecurity with machine learning and software engineering skills to advance defensive AI capabilities.

Key Responsibilities

Design and implement reinforcement learning environments focused on secure coding and vulnerability remediation.
Conduct experiments and evaluations to safely advance model capabilities in defensive cybersecurity.
Deliver completed work directly into production training runs.
Collaborate closely with cross-functional researchers, engineers, and cybersecurity specialists both inside and outside the organization.

Requirements

Experience in cybersecurity research.
Experience working with machine learning.
Strong software engineering skills.
Ability to balance research exploration with hands-on engineering implementation.
Passion for AI potential combined with a commitment to developing safe and beneficial systems.
Minimum of a Bachelor’s degree in a relevant field of study or an equivalent combination of education, training, and experience.

Nice to Have

Professional experience in security engineering, fuzzing, detection and response, or other applied defensive work.
Experience building or participating in CTF competitions and cyber ranges.
Academic research background in cybersecurity.
Familiarity with reinforcement learning techniques and environments.
Familiarity with large language model training methodologies.

Skills and Tools

Reinforcement Learning (RL)
Large Language Models (LLM)
Secure coding and vulnerability remediation
Software engineering and experimentation

Salary and Benefits

Annual Salary Range: $300,000 to $405,000 USD.
Competitive compensation and benefits package.
Optional equity donation matching.
Generous vacation and parental leave alongside flexible working hours.
Office space collaboration opportunities with a location-based hybrid policy requiring at least 25% time in office.
Visa sponsorship available for qualifying candidates with support from a retained immigration lawyer.

About the Company

Anthropic operates as a public benefit corporation dedicated to building reliable, interpretable, and steerable AI systems that remain safe and beneficial for society. Operating primarily as a single cohesive team focused on large-scale research, the company approaches artificial intelligence as an empirical science valuing collaboration, high-impact discoveries, and diverse perspectives.

How to Apply

Interested candidates should visit the official Anthropic careers page to submit an application and review further details about the opening.

Skills and tech stack

LLM

Questions candidates ask

What locations are available for this role?

The position is based out of San Francisco, CA or New York City, NY, operating under a location-based hybrid policy where staff are expected to be in the office at least 25% of the time.

What is the salary range for the Research Engineer role?

The annual base salary ranges from $300,000 to $405,000 USD.

Does Anthropic offer visa sponsorship for this position?

Yes, visa sponsorship is available, and the company works with a retained immigration lawyer to assist successful candidates with the visa process.

What educational background is required?

Candidates must have a Bachelor’s degree in a relevant field of study, or an equivalent combination of education, training, and experience.

How can I apply for this position?

Candidates can submit applications directly through the official Anthropic careers page.

Ready to apply?

The application is on the official Anthropic careers page.

Apply on company site