Software Engineer, MicroVM Compute & Isolation

Baseten; United States; Remote; USD 120,000 - 180,000; Full time

Job summary

Baseten is seeking an experienced Platform Engineer to own the microVM lifecycle for agent sandboxes, including start, stop, suspend, resume, snapshot, and fork. You will optimize the guest kernels and ensure isolation across multi-tenant workloads.

You'll tune host CPU/memory configurations, manage resources, and drive end-to-end startup performance from boot to first command. Contribute to open-source decisions and work across hardware, storage, and networking to keep Baseten Sandboxes fast

Responsibilities

• Own the microVM lifecycle for agent sandboxes: start, stop, suspend, resume, snapshot, and fork
• Build and tune the custom guest kernels sandboxes run on
• Tune host CPU and memory configuration so sandboxes run fast and safely on each type of hardware we operate
• Manage host-level resources and sandbox density on each machine
• Own startup and resume performance end to end, from VM boot or snapshot restore to the first command
• Own the guest and host side of each sandbox: its identity, how it attaches to storage, and the virtual devices that connect it to the network
• Design isolation for multi-tenant workloads where the hypervisor is the security boundary
• Debug virtualization and isolation issues at scale, from userspace through the kernel to the hardware
• Contribute architecture decisions and code back to the open-source projects we build on

Job description

Baseten is seeking an experienced Platform Engineer to own the microVM lifecycle for agent sandboxes, including start, stop, suspend, resume, snapshot, and fork. You will optimize the guest kernels and ensure isolation across multi-tenant workloads.

You'll tune host CPU/memory configurations, manage resources, and drive end-to-end startup performance from boot to first command. Contribute to open-source decisions and work across hardware, storage, and networking to keep Baseten Sandboxes fast