Software Engineer; Identity & Access Controls

• As Claude’s capabilities grow, so does our responsibility to ensure those capabilities reach the right people. The Identity & Access Controls team builds the systems that verify who our customers are, grant access to advanced model capabilities for approved use cases, and ensure that access is not misused
• As a software engineer on this team, you will build the identity, vetting, and access management infrastructure that underpins our trusted access programs, along with the monitoring and enforcement tooling that keeps them safe
• This work sits at the center of how Anthropic deploys frontier capabilities responsibly, balancing broad access with rigorous safeguards
• Build identity verification and vetting systems (KYC/KYB) that establish who our individual and business customers are
• Design and implement access control systems that grant, scope, and revoke access to advanced capabilities based on approved use cases
• Build infrastructure to configure safety systems and detection thresholds on a per-customer basis for trusted access programs
• Develop monitoring to detect misuse of expanded access, and tooling that enables enforcement teams to act on it
• Detect and remediate account takeover
• Integrate with third-party identity verification and data enrichment vendors
• Create monitoring dashboards, alerts, and internal admin tooling
• Work closely with policy, enforcement, threat intelligence, and go-to-market teams to ensure access decisions are well-informed and consistently applied

• Comprehensive health, dental, and vision insurance for you and your dependents
• Inclusive fertility benefits via Carrot Fertility
• 22 weeks of paid parental leave
• Flexible paid time off and absence policies
• Mental health support for you and your dependents
• Competitive salary and equity packages
• Optional equity donation matching at a 1:1 ratio, up to 25% of your equity grant
• Retirement plans with competitive matching
• Life and income protection plans
• $500/month flexible wellness and time saver stipend
• Commuter benefits
• Annual education stipend
• Home office stipends
• Relocation support for those moving for Anthropic
• Daily meals and snacks in the office

• Experience building and operating backend systems in production.
• A Bachelor's degree in Computer Science, Software Engineering, or comparable experience.
• Strong communication skills and ability to explain complex technical concepts to non-technical stakeholders.
• Proficiency in Python and SQL.
• Care about the societal impacts of AI and want your work to make powerful systems safer.
• Experience with identity, authentication, or authorization systems at scale.
• Experience with KYC/KYB workflows or identity verification vendors.
• Experience in trust and safety, integrity, fraud, or abuse detection.
• Experience detecting and responding to account takeover or credential compromise.
• Experience partnering with operational teams to build custom internal tooling.
• 8+ years of industry software engineering experience (not including internships and co-ops).

We encourage you to apply even if you do not believe you meet every single qualification. Not all strong candidates will meet every single qualification as listed.