Crusoe
Principal Systems Software Architect
$260K–$340K
San Francisco, CA - US · On-site · Principal · Full-time · Posted Aug 5, 2026
- Experience
- 12+ years.
- Education
- Bachelor’s or Master’s degree in Computer Science, Computer Engineering, or a related analytical field (or equivalent professional experience).
About the job
Architects Crusoe’s AI infrastructure and cloud fabric, leading hardware-software co-design, systems R&D, and production kernel and orchestration development for high-performance AI workloads.
What you'll do
- Unify BMaaS, IaaS, and CaaS infrastructure, including GPU, virtualization, and container systems.
- Lead I/O-path architecture and R&D; debug kernel-level issues and optimize GPU cluster performance.
- Set technical direction through white papers and RFCs, and represent Crusoe in industry and open-source communities.
What they ask for
- 12+ years 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.
- Proven GPU and high-speed NIC performance optimization, and leadership of cross-functional teams delivering mission-critical systems.
- Bachelor’s or Master’s degree in Computer Science, Computer Engineering, or a related analytical field (or equivalent professional experience).
Nice to have
- Patents, major open-source contributions, published research, or peer-reviewed systems publications.
- Experience optimizing infrastructure for large-scale LLM training and inference.
Pay
$260,000 - $340,000 USD base salary
Tools
Linux kernel, KVM, QEMU, Firecracker, RoCE v2, InfiniBand, NVIDIA/AMD GPUs, Kubernetes
AI focus
Designs and optimizes infrastructure for large-scale AI workloads, including GPU training and inference; LLM workload expertise is a bonus.
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