Daytona
Senior Software Engineer, Windows Sandboxes
San Francisco · Senior · Full-time · Posted Oct 30, 2026
- Experience
- 5+ years of systems engineering in production; Windows guest experience on Linux hypervisors (KVM/QEMU + virtio) or equivalent depth in Windows virtualization internals.
About the job
Build and operate Windows sandbox infrastructure on Linux hypervisors, enabling fast boot, snapshots, on-demand forks, and APIs for AI agents to control Windows environments.
What you'll do
- Build the Windows guest stack, including virtio drivers, guest agents, image pipelines, and unattended provisioning.
- Improve Windows boot and login latency; build snapshot, restore, and fork capabilities, plus APIs for agent control.
- Automate image builds and updates, and improve Windows host density, cost, and reliability.
What they ask for
- 5+ years of systems engineering in production.
- Experience with Windows guests on Linux hypervisors (KVM/QEMU + virtio), or equivalent depth in Windows virtualization internals.
- Strong Windows internals, including boot, services, session management, registry, and PowerShell/WinRM automation.
- Systems language skills in Go, Rust, C/C++, or C# where it counts.
Nice to have
- Remote display protocol experience, Windows driver or guest agent development, or desktop automation/UI testing/computer-use agent experience.
- Packer or image-as-code tooling for Windows.
Tools
KVM/QEMU, virtio, PowerShell, WinRM, Go, Rust, C/C++, C#
AI focus
Build Windows sandboxes and control-plane APIs for AI agents to run code and use computers.
Model-written summary · the original posting is authoritative