Staff+ Software Engineer, Safeguards Infrastructure

• Build the foundational pieces for safety, oversight, and intervention mechanisms of Anthropic's AI systems. • Work on the Safeguards team to monitor models, prevent misuse, and ensure user wellbeing. • Focus on building systems to detect unwanted model behaviours and prevent disallowed use of models. • Be based in London with a hybrid policy expecting at least 25% of time in the office.

• Hold a Bachelor's degree in Computer Science, Software Engineering, or comparable experience. • Bring 7+ years of experience in a software engineering position. • Be proficient in Python. • Be able to work across the stack. • Communicate strongly and explain complex technical concepts to non-technical stakeholders.

• Have experience building trust and safety, anti-spam, fraud, or abuse detection and mitigation mechanisms and interventions for AI/ML systems. • Have experience building metrics and measurement systems or data and privacy management systems. • Have worked closely with operational teams to build custom internal tooling. • Be proficient in TypeScript or Rust. • Have experience with Claude Code or similar agentic coding tools.

• Develop the foundational systems which power Safeguards, including infrastructure for data storage and management, metric and evaluation systems, and tooling for human and agentic review. • Ensure the day-to-day running of Safeguards systems and hold a high operational bar which serves both safety and customers while reducing the amount of human intervention and oversight required. • Build robust and reliable multi-layered defences for real-time improvement of safety mechanisms that work at scale.

• Receive competitive compensation between £325,000 and £395,000 GBP annually. • Get visa sponsorship where possible — Anthropic retains an immigration lawyer to support this. • Take generous parental leave. • Enjoy generous vacation and flexible working hours. • Optional equity donation matching. • Apply your technical skills to uphold principles of safety, transparency, and oversight at the frontier of AI development.

Anthropic's mission is to create reliable, interpretable, and steerable AI systems. They want AI to be safe and beneficial for users and society as a whole. The team is a quickly growing group of committed researchers, engineers, policy experts, and business leaders working together to build beneficial AI systems. Anthropic is a public benefit corporation offering competitive compensation and benefits.