Principal Systems Software Engineer

You will architect next-generation AI infrastructure spanning bare-metal, IaaS, and container platforms. You will lead I/O-path and cloud-fabric design, prototype and productionize systems for memory, networking, and compute, define technical strategy through RFCs and white papers, debug kernel-level issues, and represent the organization in open-source and industry forums.

Responsibilities

• Architect bare-metal systems that deliver GPU throughput through InfiniBand and RDMA fabrics
• Design thin virtualization layers using KVM or custom micro-VMs
• Build a container substrate using Kubernetes or Slurm for AI workloads across heterogeneous GPU nodes
• Lead the architectural design of the internal cloud fabric for SR-IOV, RDMA, and virtualized GPU scheduling
• Lead R&D workstreams to prototype and productionize memory, networking, and compute systems
• Draft white papers and RFCs for the compute and networking stack
• Resolve complex I/O-path race conditions and optimize kernel-level memory pinning for GPU clusters
• Represent Crusoe in open-source communities and industry forums

Requirements

• 12+ years of experience designing and shipping core infrastructure at a major hyperscaler or specialized HPC cloud
• Authoritative knowledge of the Linux kernel, virtualization internals, and high-performance networking
• Ability to design software that maximizes NVIDIA or AMD GPU and high-speed NIC performance
• Experience leading cross-functional teams through high-ambiguity projects and delivering production-ready mission-critical systems
• Significant field contributions, such as patents, major open-source contributions, or distributed-systems research
• Bachelor’s or Master’s degree in Computer Science, Computer Engineering, a related analytical field, or equivalent professional experience

Benefits

• Restricted Stock Units
• Paid time off and paid holidays
• Health, dental, and vision insurance
• Employer contributions to an HSA account
• Paid parental leave
• Paid life insurance
• Short-term and long-term disability insurance
• Professional development and tuition reimbursement
• Mental health and wellness support
• Commuter benefits
• Cell phone stipend
• 401(k) plan with company match up to 4% of salary
• Volunteer time off