2 days ago
Base Salary
$215k - $260k/yr
Responsibilities
- Lead R&D and implementation of hypervisor components using KVM, QEMU, or custom Rust-based solutions for large-scale GPU fleets.
- Develop hardware pass-through and abstraction using SR-IOV, VFIO, and mdev for NVIDIA GPUs and BlueField DPUs in multi-tenant environments.
- Solve live migration for AI workloads with 80GB+ VRAM and optimize PCIe peer-to-peer communication between virtualized accelerators.
- Analyze bottlenecks across CPU microarchitecture, MMU virtualization, and guest OS scheduling to reduce jitter and improve throughput.
- Contribute to and maintain upstream open-source virtualization projects, including work in the Linux kernel and virtualization communities.
- Architect security boundaries and multi-tenant isolation while enabling high-performance hardware access.
- Lead complex cross-functional projects spanning hardware engineering and cloud control planes.
Requirements
- At least 7 years of experience in hypervisor internals, kernel development, or low-level systems programming.
- Expert knowledge of CPU virtualization, including Intel VT-x and AMD-V, and memory virtualization, including EPT/NPT and HugePages.
- Experience with specialized AI hardware, including GPUs, InfiniBand/RoCE NICs, and SmartNICs/DPUs.
- Mastery of C and C++; proficiency in Rust is highly preferred.
- Experience with QEMU, KVM, and Linux kernel debugging tools such as perf, ftrace, and eBPF.
- Deep understanding of VirtIO, vhost-user, and hardware-accelerated I/O paths.
- Experience leading complex cross-functional projects connecting hardware engineering and cloud control planes.
Benefits
- Competitive compensation, bonus, equity packages, and Restricted Stock Units.
- Paid time off, paid holidays, leave programs, paid parental leave, and volunteer time off.
- Comprehensive health, dental, and vision insurance, plus HSA contributions.
- Paid life insurance, short-term and long-term disability coverage, and mental health and wellness support.
- Professional development and tuition reimbursement.
- Commuter benefits, cell phone stipend, daily meals allowance, and location-specific perks.
- 401(k) retirement plan with company match up to 4% of salary.
- Global travel insurance and emergency assistance.
About Crusoe
Crusoe builds and operates GPU-powered data centers and an AI cloud platform for enterprises running large-scale AI training and inference. It vertically integrates energy supply with compute, using stranded and renewable power to reduce emissions and costs, and sells capacity via cloud services and managed infrastructure. Founded in 2018 and headquartered in Denver, the company is privately held.