Principal Systems Software Engineer
Crusoe · San Francisco, CA - US ·
- Work mode
- Onsite
- Seniority
- Principal
- Category
- Software engineering
- Experience
- 12+ years
Design and optimize next-gen AI infrastructure, including bare-metal, virtualized, and containerized GPU systems, and lead kernel-level performance tuning and open-source contributions.
You will lead the design of next-generation AI infrastructure spanning bare-metal, virtualized, and containerized compute. You will shape the I/O path, advise on hardware and software co-design, lead research and development workstreams, write technical strategy documents, debug kernel-level systems, optimize GPU cluster performance, and represent the work in open-source and industry forums.
Responsibilities
- Architect bare-metal GPU infrastructure over InfiniBand and RDMA fabrics
- Design thin virtualization layers using KVM or custom micro-VMs
- Build container infrastructure using Kubernetes or Slurm
- Lead the architecture of the internal cloud fabric
- Drive the roadmap for SR-IOV, RDMA, and virtualized GPU scheduling
- Lead research and development workstreams
- Draft white papers and RFCs
- Debug race conditions in the I/O path
- Optimize kernel-level memory pinning for GPU clusters
- Represent Crusoe in open-source communities and industry forums
Requirements
- 12+ years designing and shipping core infrastructure at a major hyperscaler or specialized HPC cloud
- Authoritative knowledge of the Linux kernel
- Knowledge of KVM, QEMU, and Firecracker
- Knowledge of RoCE v2 and InfiniBand
- Experience designing software for NVIDIA or AMD GPUs and high-speed NICs
- Experience leading cross-functional teams through high-ambiguity projects
- Experience delivering production-ready mission-critical systems
- Significant industry contributions such as patents, open-source contributions, or published research
- Bachelor's or master's degree in computer science, computer engineering, or a related analytical field, or equivalent professional experience
Benefits
- Competitive compensation
- Restricted Stock Units
- Paid time off
- Paid holidays
- Comprehensive health insurance
- Dental insurance
- Vision insurance
- Employer HSA contributions
- Paid parental leave
- Paid life insurance
- Short-term disability insurance
- Long-term disability insurance
- Professional development
- Tuition reimbursement
- Mental health and wellness support
- Commuter benefits
- Cell phone stipend
- 401(k) retirement plan with company match up to 4% of salary
- Volunteer time off