Staff Software Engineer (Developer Productivity (Development Environments), Claude Code)

Join Anthropic, a leading AI safety and research company, as a Staff Software Engineer. You will own the development environment end to end, driving down cold-start time, designing the environment isolation model, and building the pre-push validation surface. You will also partner with platform, delivery infrastructure, and tooling teams to shape the repository and service topology. This role requires significant professional software engineering experience, proficiency in Python, and experience working across team boundaries.

• Posséder l'environnement de développement local et hébergé de bout en bout, y compris le cycle de vie des conteneurs, la fourniture de dépendances, le rechargement à chaud et la commande unique qu'un ingénieur exécute pour commencer à travailler.
• Concevoir et mettre en œuvre le modèle d'isolation de l'environnement (sables, environnements éphémères, séparation des espaces de noms) qui permet aux ingénieurs d'expérimenter librement sans risque pour les systèmes partagés.
• Collaborer avec les équipes de plateforme, d'infrastructure de livraison et d'outils pour façonner la topologie du référentiel et du service qui soutient le mieux une boucle interne rapide.
• Hands-on experience with containers (Docker or equivalent), Kubernetes, and pod-level operations
• Prior ownership of a developer environment, build system, or paved-path workflow used by a multi-team engineering organization, with demonstrable adoption
• Experience working across team boundaries to deliver infrastructure that other engineers depend on
• Proficiency in Python
• Significant professional software engineering experience in backend or developer infrastructure domains
• Daily, hands-on use of AI coding assistants as part of your own development workflow
• 7+ years of backend or developer infrastructure engineering experience
• A track record of reducing cold-start or boot time on a complex multi-service stack to under a minute, with before/after measurements
• Experience with Rust or Go
• Prior design of environment isolation models such as ephemeral environments, sandboxes, or isolated namespaces
• Experience leading (or making the case against) a monorepo extraction, repo split, or comparable scope-boundary migration from the developer-tooling side
• Familiarity with Bazel, Buck, Nix, or similar hermetic build systems
• Experience operating as a platform tech lead — broad context across the stack and a history of cross-team influence
• 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
• 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
• Required field of study: A field relevant to the role as demonstrated through coursework, training, or professional experience
• Minimum education: Bachelor’s degree or an equivalent combination of education, training, and/or experience
• Minimum years of experience: Years of experience required will correlate with the internal job level requirements for the position
• We encourage you to apply even if you do not believe you meet every single qualification