Senior Site Reliability Engineer, Compute

Location

San Francisco, CA - US

Employment Type

Full time

Location Type

On-site

Department

Cloud Engineering

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.

What You'll Be Working On :

In this role, you will develop automation and observability tools to monitor Crusoe’s compute infrastructure, spanning from the kernel to orchestration layers. You will support and scale the company’s virtualization stack, including technologies such as KVM, QEMU, and other hypervisors. Collaborating with Linux kernel and hardware teams, you’ll help identify and resolve performance bottlenecks, driver issues, and optimize hardware offloads. A key focus will be on optimizing performance for AI and HPC workloads across CPU, GPU, and DPU / NIC resources. You will 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. The role involves tuning kernel subsystems such as the process scheduler, NUMA configuration, memory management, and interrupt handling. Additionally, you will work closely with platform teams to implement and validate support for emerging compute hardware, including SmartNICs, BlueField devices, and TPUs

What You’ll Bring to the Team :

8+ 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 / month

Compensation Range :

Compensation will be paid in the range of $172,000 - $209,000 a year + Bonus. Restricted Stock Units are included in all offers. Compensation to be determined by the applicant’s education, experience, knowledge, skills, and abilities, as well as internal equity and alignment with market data.

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.

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