Senior Site Reliability Engineer, Compute

Crusoe • Sunnyvale, CA

36d • $166,000 - $201,000

About The Position

At Crusoe, we are building the most sustainable, AI-first cloud infrastructure, and our Compute-focused Site Reliability Engineers are the backbone of that mission. This role is centered on supporting virtualization, hypervisor, and kernel-level performance for Crusoe’s compute infrastructure. You’ll play a vital role in deploying and optimizing bare-metal and virtualized compute platforms, ensuring performance, security, and scale for modern AI and HPC workloads.

Requirements

• 5+ years of professional experience in Compute SRE, Linux system engineering, or compute infrastructure roles.
• Strong proficiency in Linux kernel internals, with exposure to scheduler, memory allocation, and driver subsystems.
• Experience with virtualization architectures and technologies such as KVM, Xen, QEMU, or VMware.
• Familiarity with SmartNICs/DPUs (e.g., NVIDIA CX6/7, BlueField-3) and kernel bypass techniques.
• Expert-level skills in at least one programming language: Go, C or Rust.
• Experience with system-level debugging, including kdump, kexec, and kernel panic analysis.
• Proficiency in Infrastructure as Code tooling and CI/CD practices for bare-metal or cloud infrastructure.
• Strong understanding of compute scheduling, resource management, and high-throughput networking.

Responsibilities

• Develop automation and observability tools to monitor Crusoe’s compute infrastructure, spanning from the kernel to orchestration layers.
• Support and scale the company’s virtualization stack, including technologies such as KVM, QEMU, and other hypervisors.
• Collaborate with Linux kernel and hardware teams, you’ll help identify and resolve performance bottlenecks, driver issues, and optimize hardware offloads.
• Optimize performance for AI and HPC workloads across CPU, GPU, and DPU/NIC resources.
• Participate in root cause analysis for kernel crashes, hardware-software integration problems, and performance regressions, while also integrating hypervisor-level enhancements to improve guest VM reliability and workload isolation.
• Tune kernel subsystems such as the process scheduler, NUMA configuration, memory management, and interrupt handling.
• Work closely with platform teams to implement and validate support for emerging compute hardware, including SmartNICs, BlueField devices, and TPUs

Benefits

• Industry competitive pay
• Restricted Stock Units in a fast growing, well-funded technology company
• Health insurance package options that include HDHP and PPO, vision, and dental for you and your dependents
• Employer contributions to HSA accounts
• Paid Parental Leave
• Paid life insurance, short-term and long-term disability
• Teladoc
• 401(k) with a 100% match up to 4% of salary
• Generous paid time off and holiday schedule
• Cell phone reimbursement
• Tuition reimbursement
• Subscription to the Calm app
• MetLife Legal
• Company paid commuter benefit; $300 per pay period

What This Job Offers

• Job Type: Full-time
• Career Level: Senior
• Education Level: No Education Listed
• Number of Employees: 1,001-5,000 employees