Staff Software Engineer, Crusoe Energy Systems
Kernel and Virtualization
$250-320k
+ RSUs
Crusoe offers sponsorship
Clean computing infrastructure
Be an early applicant
Clean computing infrastructure
201-500 employees
Be an early applicant
$250-320k
+ RSUs
Crusoe offers sponsorship
201-500 employees
Company mission
To align the future of computing with the future of the climate.
Role
Who you are
- 10+ years of experience in systems software engineering, with a focus on both virtualization and kernel-level development
- 3+ years in a technical leadership role managing infrastructure or low-level systems teams
- Deep expertise with virtualization technologies (e.g., KVM, Xen, VMware) and hypervisor development
- Strong knowledge of Linux kernel internals, including memory management, I/O, scheduling, and interrupt handling
- Experience writing performant, reliable device drivers in C, C++, Go, or Rust
- Familiarity with accelerators (GPUs, TPUs) and related technologies like CUDA or ROCm
- Experience with high-performance networking (e.g., InfiniBand, RoCE) and tuning virtualization stacks for HPC workloads
- Proven ability to lead complex projects from concept to production while mentoring others along the way
- Excellent communication skills and ability to drive alignment across diverse engineering teams
What the job involves
- Crusoe is seeking a senior technical leader with deep expertise in both virtualization infrastructure and Linux kernel development to help build and scale our cloud platform optimized for AI and HPC workloads
- This role will oversee the end-to-end design and implementation of high-performance virtualization layers, while also driving the development of kernel-level software that interfaces closely with hardware accelerators and hypervisors
- You will lead a cross-functional team focused on building robust, scalable, and efficient compute infrastructure — combining deep systems-level engineering with cloud-native scalability
- Your leadership will directly shape the performance, reliability, and functionality of Crusoe’s cloud compute offerings
- Design and implement advanced virtualization technologies tailored for GPU-accelerated AI and HPC workloads
- Make architectural decisions on hypervisors, device emulation, and hardware-software integration (e.g., GPUs, TPUs, networking)
- Optimize virtualization stacks for performance, scalability, and low latency across cloud-native and bare-metal configurations
- Develop and maintain Linux kernel modules, including device drivers, to support new hardware and ensure reliable kernel performance
- Optimize kernel-level performance (memory management, scheduling, I/O) for high-throughput and low-latency workloads
- Focus on integration between kernel, hypervisors, and hardware accelerators to support advanced compute use cases
- Perform deep-dive debugging and root-cause analysis of issues at the OS, hypervisor, and hardware level
- Collaborate closely with hardware engineers to understand IP block functionality and ensure seamless software integration
- Drive system performance improvements through kernel and virtualization optimizations
- Lead, mentor, and grow a high-performing team of engineers across kernel, systems, and virtualization domains
- Collaborate with product, infrastructure, hardware, and AI/ML teams to align technical direction with business goals
- Contribute to a culture of engineering excellence through technical mentorship, code/design reviews, and cross-functional communication
Our take
Methane, that is mostly generated by flaring in the oil and gas industry, is a major contributor to global warming - as are the carbon emissions produced by global computing (especially bitcoin mining.) Crusoe Energy Systems reduces flaring, and repurposes waste natural gas into energy for these processes, thus removing methane from the atmosphere and simultaneously reducing the carbon footprint of computing.
Crusoe's mobile data centers can be deployed to generate power from methane waste at its source. As well as its patented Digital Flare Mitigation system, Crusoe is also working to enable alternative revenue streams for renewable and clean energy projects, with the ultimate aim to run data centers on renewable energy.
The company has connections with Kraken Oil & Gas, Devon Energy, Enerplus, and more; and its computing power is used by institutes such as MIT. The rising pressure to take action on climate change, coupled with the need for high-energy computing as more infrastructure moves online, has placed it in a massive industry. With the capability of its systems to reduce the equivalent of 8,000 tonnes per year of CO2 and 2023 debt financing amounting to $200 million in investment, Crusoe Energy Systems is well positioned to make an impact and drive for further success.
Steph
Company Specialist at Welcome to the Jungle
Insights
31% employee growth in 12 months
Company
Funding (last 2 of 5 rounds)
Dec 2024
$600m
SERIES D
Apr 2022
$350m
SERIES C
Total funding: $1.1bn
Company benefits
- Stock options 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
- Paid Parental Leave
- Paid life insurance, short-term and long-term disability
- Teladoc
- 401(k) with a 4% match
- Unlimited time off
- Cell phone reimbursement
- Tuition reimbursement
- Subscription to the Calm app
- Company paid commuter benefit; $100 per month
- Pet-friendly offices
Company HQ
LoDo, Denver, CO
Leadership
Cully Cavness
(President & COO)Started their career as an Energy Infrastructure Research Fellow before spending 3 years as a Business Development Manager at Recurrent Engineering and serving as CFO of Sword & Plough. They left their role as VP of Highlands Natural Resources to co-found Crusoe Energy Systems.
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