140K–225K USD / year
Software Engineer, Compute Infra
DevOpsOn-site — San Francisco, CA, New York, NY
Published on 2026-11-10
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About this role
Build and scale sandbox infrastructure that gives agents isolated virtual machines for coding, reinforcement learning, and other workloads. The role spans virtualization, control-plane and scheduler scaling, storage, and secure networking across cloud and on-premise datacenters.
About the company
Cursor builds an AI coding editor and agent workflows that help developers write and ship software faster. It serves software teams looking for tighter AI assistance inside the IDE.
The team
Compute Infra at SpaceXSI, within the Engineering and Cloud groups.
Stack
FirecrackerCloud HypervisorublkLinux
What you'll do
- Rearchitect the control plane and scheduler to support one million concurrent VMs per cluster.
- Build a block device for deduplication, lazy loading, and efficient VM snapshots.
- Design an egress proxy and network isolation to filter, monitor, and route agent traffic.
- Build resilient systems across cloud and on-premise datacenters.
What we're looking for
- Bachelor's degree in computer science, engineering, math, or a scientific discipline, or at least two years of professional software development experience in lieu of a degree.
- Ability to work onsite in the San Francisco or New York office.
Nice to have
- Experience with compute orchestration such as Kubernetes or Mesos.
- Experience operating large fleets of VMs or isolated sandboxes.
- Experience with the Linux kernel and virtualization technologies.
- Interest in infrastructure primitives for future agents.
Benefits
- Equity
- Medical, vision, and dental coverage
- 401(k) plan
- Short- and long-term disability insurance
- Life insurance