Staff+ Software Engineer (Product Sandboxing)

• We build and run the secure execution environment behind Claude’s agentic capabilities
• When Claude writes and runs code, browses the web, or uses a computer, that happens on infrastructure our team owns
• We work at the intersection of systems engineering and security
• The goal is to make untrusted code execution safe, fast, and reliable enough that product teams don’t have to think about it
• This is the layer between the model and the outside world, and it has to hold up at scale for every Anthropic product
• We’re hiring engineers who have experience building for containerized workloads and have a keen eye for building products used by millions of customers
• You’ll independently scope complex, multi-month projects, drive cross-org alignment through ambiguous problem spaces, and make architectural decisions that shape how Anthropic builds and scales its products
• You’ll partner directly with research to productize cutting-edge capabilities, and will have lasting impact on the platform that hundreds of thousands of companies and internal/external engineers depend on every day

Benefits

• 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

Have strong fundamentals in service-oriented architectures, networking, and systems design, ideally having owned both the technical vision and execution of a foundational platform system end to endCan navigate ambiguity and make sound technical decisions independently, and have ideally operated in 0 to 1 and more mature team or company settingsHave experience with cloud infrastructure (GCP, AWS, or Azure), container orchestration (Kubernetes), and/or multi-cloud networkingAre proficient in Python, Go, Rust, or similar systems languagesTake full ownership of your work—from design through deployment and operationsHave a minimum of 8 years of practical experience as a backend or platform engineer building scalable distributed systems, ideally operating at tech lead level or equivalent distributed systems, cloud-native products, developer tools, or external developer facing productsTake a product-focused approach to platform work and care about building solutions that are robust, scalable, and easy to usMinimum education: Bachelor’s degree or an equivalent combination of education, training, and/or experienceRequired field of study: A field relevant to the role as demonstrated through coursework, training, or professional experienceWe encourage you to apply even if you do not believe you meet every single qualification