Crusoe

Staff Cloud Hypervisor Engineer, Compute

Sunnyvale, CA - US. Posted 10 days ago

The role

You will serve as the lead architect for a next-generation virtualization stack. You will design a Greenfield hypervisor environment optimized for GPUs, DPUs, and high-speed interconnects to deliver bare-metal performance for AI/ML workloads.

What you will do

  • Lead the R&D and implementation of core hypervisor components.
  • Develop and refine advanced hardware pass-through and abstraction techniques.
  • Solve technical hurdles such as live migration for AI workloads and optimizing PCIe peer-to-peer communication.
  • Conduct deep-dive bottleneck analysis across the entire stack.
  • Contribute to and maintain upstream open-source virtualization projects.
  • Architect robust security boundaries for AI-native cloud infrastructure.

Required qualifications

  • 7+ Years of Experience in hypervisor internals, kernel development, or low-level systems programming.
  • Expert-level knowledge of CPU virtualization (Intel VT-x, AMD-V) and memory virtualization (EPT/NPT, HugePages).
  • Experience working with specialized AI hardware, including GPUs, InfiniBand/RoCE NICs, and SmartNICs/DPUs.
  • Mastery of C and C++.
  • Experience with QEMU, KVM, and Linux kernel debugging tools (perf, ftrace, eBPF).
  • Deep understanding of VirtIO, vhost-user, and hardware-accelerated I/O paths.
  • Experience leading complex, cross-functional projects that bridge hardware engineering and cloud control planes.

Nice to have

  • Proficiency in Rust for modern systems programming

Benefits

  • Competitive compensation and equity packages
  • Restricted Stock Units
  • Paid time off, paid holidays & leave of absence programs
  • Comprehensive health, dental & vision insurance
  • Employer contributions to HSA account
  • Paid parental leave
  • Paid life insurance, short-term and long-term disability
  • Professional development & tuition reimbursement
  • Mental health & wellness support
  • Commuter benefits (parking & transit)
  • Cell phone stipend
  • 401(k) Retirement plan with company match up to 4% of salary

About the company

Crusoe is a vertically integrated AI infrastructure company that owns and operates each layer of the stack to power AI workloads. They use an energy-first approach to build AI infrastructure.