Software Engineer, Safeguards Foundations (Internal Tooling)

Job Application for Software Engineer, Safeguards Foundations (Internal Tooling) at Anthropic

Software Engineer, Safeguards Foundations (Internal Tooling) London, UK

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, engineers, policy experts, and business leaders working together to build beneficial AI systems.

About the role

The Safeguards team is responsible for the systems that detect, review, and act on misuse of Anthropic's models — work that sits at the very centre of our mission to develop AI safely. Within Safeguards, the Foundations team builds the platforms, infrastructure, and internal tools that the rest of the organisation depends on to do this well.

We are looking for a software engineer to own and extend the internal tooling that powers human review — the case management, labelling, investigation, and enforcement interfaces our analysts and policy specialists use every day. These are back-office tools, but they are anything but low-stakes: the speed, clarity, and reliability of this tooling directly determines how quickly Anthropic can identify harmful behaviour, make sound enforcement decisions, and feed signal back into model training. You'll work closely with Trust & Safety operations, policy, and detection-engineering teams to turn messy operational workflows into well-designed, durable software.

This is a hands-on, full-stack role for someone who enjoys building products for internal users, sweats the details of usability and correctness, and wants their engineering work to have a clear line to real-world safety outcomes.

Responsibilities

Design, build, and maintain the internal review and enforcement tooling used by Safeguards analysts — including case queues, content review surfaces, decision/audit logging, and account-actioning workflows

Understand user workflows and establish tooling for well processes that may be distributed across a number of tools and UIs

Develop the ‘base layer’ of reusable APIs, data storage, and backend services that let new review workflows be stood up quickly and safely

Partner with operations and policy teams to understand reviewer pain points, then translate them into clear product improvements that reduce handling time and decision error

Integrate tooling with upstream detection systems and downstream enforcement infrastructure so that flagged behaviour flows cleanly from signal → human review → action

Build in the guardrails that sensitive internal tools require: granular permissions, audit trails, data-access controls, and reviewer wellbeing features (e.g. content blurring, exposure limits)

Instrument the tools you ship — surfacing metrics on queue health, reviewer throughput, and decision quality so the team can see what's working

Contribute to the Foundations team's shared platform and on-call responsibilities

You may be a good fit if you

Have 4+ years of experience as a software engineer, with meaningful time spent building internal tools, operations platforms, or back-office products

Are comfortable using agentic coding tools (e.g. Claude Code) as a core part of your workflow, and can direct them to ship well-tested, production-quality software at a high cadence without lowering the bar (our stack is mostly React/TypeScript and Python)

Take a product-minded approach to internal users: you work with the people using your tools, watch where they struggle, and fix it

Are results-oriented, with a bias towards flexibility and impact

Pick up slack, even if it goes outside your job description

Communicate clearly with non-engineering stakeholders and can explain technical trade-offs to operations and policy partners

Care about the societal impacts of your work and want to apply your engineering skills directly to AI safety

Strong candidates may also

Have built tooling in a trust & safety, content moderation, fraud, integrity, or risk-operations setting

Have experience designing case-management or workflow systems (queues, SLAs, escalation paths, audit logs)

Have worked with sensitive data and understand the privacy, access-control, and reviewer-wellbeing considerations that come with it

Have experience with GCP/AWS, Postgres/BigQuery, and CI/CD in a production environment

Have used LLMs as a building block inside operational tools (e.g. assisted triage, summarisation, or classification in the review loop)

Representative projects

Rebuilding the analyst review queue so cases are routed by severity and skill, with full decision history and one-click escalation

Shipping a unified account-investigation view that pulls signals from multiple detection systems into a single, permissioned surface

Adding content-obfuscation and exposure-tracking features to protect reviewers working with harmful material

Building an internal labelling tool that feeds high-quality ground truth back to the detection and research teams

Candidates need not have

100% of the skills listed above

Prior experience in AI or machine learning

Formal certifications or education credentials

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

The annual compensation range for this role is listed below.

For sales roles, the range provided is the role’s On Target Earnings ("OTE") range, meaning that the range includes both the sales commissions/sales bonuses target and annual base salary for the role.

Annual Salary: £255,000 - £325,000 GBP

Logistics

Minimum education: Bachelor’s degree or an equivalent combination of education, training, and/or experience

Required field of study: A field relevant to the role as demonstrated through coursework, training, or professional experience

Minimum years of experience: Years of experience required will correlate with the internal job level requirements for the position

Location-based hybrid policy: Currently, we expect all staff to be in one of our offices at least 25% of the time. However, some roles may require more time in our offices.

Visa sponsorship: We do sponsor visas! However, we aren't able to successfully sponsor visas for every role and every candidate. But if we make you an offer, we will make every reasonable effort to get you a visa, and we retain an immigration lawyer to help with this.

We encourage you to apply even if you do not believe you meet every…