About the job
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.
Responsibilities
Independently scope complex, multi-month projects and drive cross-org alignment through ambiguous problem spaces
Make architectural decisions that shape how Anthropic builds and scales its products
Partner directly with research to productize cutting-edge capabilities
Build and run the secure execution environment behind Claude's agentic capabilities
Take full ownership of work from design through deployment and operations
Qualifications
Minimum
Have a minimum of 8 years of practical experience as a backend or platform engineer building scalable distributed systems
Have strong fundamentals in service-oriented architectures, networking, and systems design
Are proficient in Python, Go, Rust, or similar systems languages
Have experience with cloud infrastructure (GCP, AWS, or Azure), container orchestration (Kubernetes), and/or multi-cloud networking
Take full ownership of your work—from design through deployment and operations
Can navigate ambiguity and make sound technical decisions independently
Bachelor’s degree or an equivalent combination of education, training, and/or experience
Preferred
Ideally operating at tech lead level or equivalent distributed systems, cloud-native products, developer tools, or external developer facing products
Ideally having owned both the technical vision and execution of a foundational platform system end to end
Have ideally operated in 0 to 1 and more mature team or company settings
Preference will be given to candidates based in NY, SEA, SF or the Bay Area given the current location of team