Research Engineer

About the Role

We're building a team to develop and run "gold standard" evaluations for catastrophic risks, to make sure we release models that are safe for the world to use.This work is at the core of implementing our Responsible Scaling Policy (RSP), which defines the technical and operational measures for safely training and deploying frontier AI models.

As a Research Engineer on the Frontier Red Team, you'll be creating evaluation systems that will help us understand and control some of the most capable AI systems ever built. You will collaborate with domain experts across multiple workstreams including biosecurity, autonomous replication, cybersecurity, and national security. You'll build, scale, and run evaluations to measure dangerous capabilities in models and determine if and when they cross ASL thresholds and require heightened security measures. Your work will directly inform decisions at the highest levels of the company and help establish standards that could influence the entire AI industry.

We are looking for engineers who can execute rapidly, maintain high throughput, and bring a strong builder mindset to solving complex problems. The ideal candidate will be able to quickly prototype and iterate on evaluation infrastructure while maintaining high engineering standards. You'll be building systems to evaluate capabilities that have never existed before, requiring creative solutions and rigorous implementation.

Responsibilities

• Design and implement robust evaluation infrastructure to measure model capabilities and risks across multiple domains
• Lead technical projects to build and scale evaluation systems that could become industry standards
• Collaborate with domain experts to translate their insights into concrete evaluation frameworks
• Build sandboxed testing environments and automated pipelines for continuous model assessment
• Work closely with researchers to rapidly prototype and iterate on new evaluation approaches
• Partner with cross-functional teams to advance Anthropic's safety mission
• Contribute to Capability Reports that inform critical deployment decisions

You may be a good fit if you

• Have led and conducted fast, iterative experiments with frontier AI models
• Have designed or implemented evaluations that involve sampling + prompting LLMs
• Write clean, well-structured code that others can build upon
• Care deeply about AI safety and responsible development
• Have strong software engineering skills with extensive Python experience
• Have experience working with distributed systems
• Are comfortable defining technical specifications and executing towards them
• Are a self-starter who thrives in fast-paced, collaborative environments
• Are excited about tackling unprecedented technical challenges
• Can balance the urgency of our mission with careful, methodical implementation

Strong candidates may also have

• Experience working on sensitive or security-critical projects
• Understanding of AI safety concepts and concerns
• Background in one or more relevant domains (biosecurity, cybersecurity, and others)

Representative Projects

• Build infrastructure for running large-scale model evaluations across multiple risk domains
• Create tools for rapid evaluation prototyping and iteration
• Contribute to evaluation frameworks that could become industry standards
• Design and implement custom testing environments for specific capability assessments
• Develop monitoring and analysis systems for evaluation results
• Collaborate with domain experts to translate theoretical risks into practical tests, such as cyber ranges and autonomous replication environments

Candidates need not have

• Domain expertise in specific risk areas
• 100% of the skills needed to perform the job
• Prior experience with AI model evaluation

Deadline to apply: None. Applications will be reviewed on a rolling basis.