Software Engineer, Sandboxing

Responsibilities Design, build, and operate sandboxed execution environments for untrusted model-generated code and tool calls at scale. Improve isolation boundaries using containers, microVMs, and gVisor-style kernels while balancing security, startup latency, and throughput. Build scheduling, resource-management, provisioning, reuse, and teardown systems for high-concurrency sandbox workloads. Partner with researchers and the Tinker product team to expose safe, usable sandboxing primitives. I…