Infrastructure Engineer, Sandboxes & Compute

The role

Every environment episode needs an isolated, fast, disposable sandbox. We run many at once, for customers who care about isolation. You’ll own the compute layer: orchestration, isolation, images and cost.

What you’ll own

• The sandbox fleet that environments execute in, and its scaling.
• Fast snapshot, restore and teardown for containerised and VM workloads.
• Isolation between episodes, between customers, and from the outside world.
• Images, dependencies and reproducible builds for environment runtimes.
• Cost and performance, watched and improved.

What you bring

• Strong experience with Kubernetes, containers and Linux internals.
• Infrastructure you’ve operated at scale on a major cloud.
• Security-minded: you think about escape paths and blast radius by default.
• Infrastructure as code and on-call ownership.

Helpful, not required

• MicroVMs, gVisor or similar isolation technologies.
• ML or evaluation workloads you’ve supported.