Senior Full Stack Engineer - Agent Runtime & Platform

Sydney · Full-time · On-site/hybrid Every agent task runs somewhere: a sandboxed container with a filesystem, a browser, tools and a time limit. This role owns that runtime and the platform services around it — the layer everything else in the product depends on. What you'll do Own the agent sandbox runtime: provisioning, isolation, scheduling, lifecycle and cost per task at scale. Build and own platform services — identity plumbing, secrets, metering, object storage, workflow orchestration, an…