Senior Site Reliability Engineer, Compute

Job Overview

Crusoe's mission is to accelerate the abundance of energy and intelligence. We’re crafting the engine that powers a world where people can create ambitiously with AI — without sacrificing scale, speed, or sustainability. Be a part of the AI revolution with sustainable technology at Crusoe. Here, you'll drive meaningful innovation, make a tangible impact, and join a team that’s setting the pace for responsible, transformative cloud infrastructure.

About This Role

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.

Key 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 to 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.


• Integrate 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.

Required Qualifications

• 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.

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

Crusoe is an Equal Opportunity Employer. Employment decisions are made without regard to race, color, religion, disability, genetic information, pregnancy, citizenship, marital status, sex/gender, sexual preference/orientation, gender identity, age, veteran status, national origin, or any other status protected by law or regulation.