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Salary: USD 215,000 - 260,000 / annual
Crusoe is a vertically integrated AI infrastructure company building energy-efficient solutions for large-scale AI compute. The company owns and operates the full stack from power generation through cloud services, addressing the critical bottleneck of power availability for AI workloads.
In this Staff role, you will set the technical direction for Crusoe's Linux kernel team, owning the roadmap and architecting critical development projects. You will balance high-level architectural design with hands-on kernel coding, tackling complex kernel problems while mentoring and growing engineers to deliver production-ready infrastructure at scale.
Key responsibilities include:
- Perform deep-dive root-cause analysis of OS and hardware layer issues; lead triage and backporting for kernel CVEs while building automated tooling for vulnerability analysis
- Architect and lead critical projects (new kernel features, security patching infrastructure, deployment systems) from design through production and upstream contribution
- Develop kernel code with an upstream-first mindset, aiming to contribute all changes to the Linux kernel community and maintain zero downstream patches
- Develop and review kernel code across memory management, scheduler, networking, storage, and GPU-related subsystems
- Design and implement advanced virtualization technologies for GPU-accelerated AI and HPC workloads, optimizing for low latency and high scalability across hypervisors and device emulation
- Identify and develop kernel efficiency improvements proactively (e.g., DAMON-based memory management, hugepage optimization, memory overcommit)
- Mentor and review work from mid-level and junior engineers
Requirements:
- Deep knowledge of Linux kernel internals including memory management, scheduler, networking, storage subsystems, and/or device drivers
- Strong C programming skills and fluency in kernel development workflow (patch submission, mailing lists, Lore)
- Experience evaluating kernel security vulnerabilities: CVE analysis, exploitability assessment, backporting fixes
- Demonstrated ability to set technical direction and drive projects end-to-end
- Deep knowledge of virtualization technologies (KVM, Xen, QEMU)
- 10+ years of experience in systems software engineering working on low-level systems or infrastructure teams
- Track record of upstream Linux kernel contributions is a strong plus
