Sandboxing Systems Engineer: Fast, Secure Isolation

Anthropic Limited; Seattle (WA); Presencial; USD 320.000 - 485.000; Jornada completa

Descripción de la vacante

Anthropic Limited is seeking a Sandboxing Engineer to design, build, and operate the sandboxing infrastructure that runs untrusted, model-generated code and agent workloads at scale. You will work at the boundary between the Linux kernel, virtualization, and the container ecosystem, partnering with research, product, and security teams to make safe and fast execution a reality.

The role requires deep Linux systems programming experience and proficiency in systems languages.

Formación

• Software engineering experience in Linux systems programming, kernel development, or another low-level area.
• Strong programming skills in at least one systems language such as Rust, C, C++, or Go
• Working knowledge of virtualization or container isolation technologies such as KVM, QEMU, Firecracker, gVisor, or runc
• Understanding of Linux resource management, including namespaces, cgroups, scheduling, and memory management
• Experience profiling and debugging performance issues at the system level
• Ability to work in unfamiliar codebases and technical areas, and to ship practical solutions with measurable results
• Strong communication skills and a commitment to building safe, reliable systems

Responsabilidades

• Design, build, and operate the sandboxing infrastructure that runs untrusted, model-generated code and agent workloads at scale
• Improve sandbox startup time, density, and throughput, including snapshot and restore, checkpointing, and warm pools
• Strengthen isolation across compute, filesystem, and network, including egress controls and per-session credential handling
• Investigate and fix performance, reliability, and security issues at the kernel, hypervisor, and container runtime level
• Build the monitoring, tracing, and debugging tools that show where time and resources go inside a sandbox
• Work with researchers to support reinforcement learning environments and evaluations that need fast, reproducible, isolated execution
• Work with product and platform engineers to expose sandboxes as a dependable, well-designed capability for Claude products and customers
• Partner with security teams to threat-model the platform and to test, harden, and respond to escape and abuse scenarios
• Work with cloud providers on the hardware and platform features that our workloads depend on
• Share knowledge on systems programming and Linux internals, and help set technical standards for the team

Conocimientos

Linux systems

Rust

C

C++

Go

Virtualization

Linux namespaces

Performance profiling

Adaptability

Communication

Educación

Bachelor's degree

Herramientas

KVM

QEMU

Firecracker

gVisor

runc

Descripción del empleo

Anthropic Limited is seeking a Sandboxing Engineer to design, build, and operate the sandboxing infrastructure that runs untrusted, model-generated code and agent workloads at scale. You will work at the boundary between the Linux kernel, virtualization, and the container ecosystem, partnering with research, product, and security teams to make safe and fast execution a reality.

The role requires deep Linux systems programming experience and proficiency in systems languages.