Senior Performance Engineer, Crusoe Energy Systems
$170-205k
+ RSUs + Bonus
Renewable-powered AI infrastructure
Be an early applicant
Renewable-powered AI infrastructure
1001+ employees
Be an early applicant
$170-205k
+ RSUs + Bonus
1001+ employees
Company mission
To accelerate the abundance of energy and intelligence.
Role
Who you are
- Linux Kernel Mastery: Deep expertise in Linux system internals and kernel-level programming is essential for this role
- Programming Proficiency: Expert-level skills in Go, C, and C++ (Rust is also a strong asset)
- Systems Performance Mindset: A proven track record of hands-on performance tuning, benchmarking, and optimization in complex environments
- Educational Foundation: A bachelor’s degree in Computer Science, Engineering, or a related field, or equivalent professional experience
- Collaborative Spirit: Ability to work effectively within cross-functional teams, communicating complex technical concepts clearly to stakeholders
- AI Ecosystem Familiarity: Experience or exposure to the Artificial Intelligence/Cloud ecosystem and standard industry tooling
Desirable
- Hands-on experience with Rust development
- Prior experience working in high-scale cloud or infrastructure engineering environments
- Deep familiarity with performance-critical infrastructure components beyond the kernel layer
- Experience with specific low-level performance analysis and tracing tools
What the job involves
- We are seeking a highly skilled, hands-on Senior level performance engineer who thrives on deep technical challenges. The ideal candidate possesses a mastery of Linux kernel systems and low-level optimization, with a collaborative mindset to drive cross-functional projects
- This is a full-time position where you will roll up your sleeves to perform direct performance benchmarking and system tuning, making a tangible impact on Crusoe’s global compute operations
- System Performance Benchmarking: Design and execute rigorous benchmarks to analyze system behavior, identifying bottlenecks and opportunities for performance enhancement
- Kernel Optimization: Develop and implement low-level optimizations within the Linux kernel to maximize efficiency and system throughput
- Hands-on Development: Write and maintain high-performance code using Go, C, C++, or Rust to drive infrastructure improvements
- Data Plane Tuning: Focus on data plane performance, ensuring our cloud architecture meets the high-speed requirements of modern AI workloads
- Cross-Functional Collaboration: Partner closely with Software Infrastructure, Product, and other engineering teams to align performance initiatives with broader organizational goals
- Technical Problem-Solving: Actively troubleshoot complex system issues, applying an analytical approach to ensure reliability and scalability
- Strategic Knowledge Sharing: Contribute to team documentation and best practices, fostering a culture of technical excellence and continuous improvement
Our take
Crusoe is tackling one of the biggest challenges facing the digital age: the enormous energy demand of data centres and AI infrastructure. As AI models grow more powerful, they require immense computing power (and therefor electricity) to train and operate. This surge in energy use has put some pressure on power grids, driven up costs, and raised environmental concerns. Crusoe is on a mission to make this process more sustainable by finding smarter, cleaner, and more efficient ways to power the data centres that drive modern computing.
The company started out by putting wasted energy to work. Originally known as Crusoe Energy, it captured natural gas that would otherwise be burned off ("flared") at remote oil sites and used it to power modular data centres. Today, Crusoe has evolved into a major player in AI infrastructure, designing and operating large-scale data centres near renewable or stranded energy sources. It's now one of a handful of "neocloud" companies (next-generation cloud providers focused on flexible, efficient computing for AI workloads). And its facilities are helping tech giants like OpenAI handle the massive computing requirements of training advanced AI models.
Recently, Crusoe has attracted some huge investor attention, tripling its valuation to over $10B and raising almost $1.4B in its 2025 funding round. It's building OpenAI's first major US data centre campus and even experimenting with bold new frontiers. In partnership with Starcloud, Crusoe plans to deploy the world's first space-based cloud computing infrastructure, powered by solar energy and orbiting the Earth by 2027. If successful, this could redefine how and where computing happens, opening up a cleaner, virtually limitless source of energy for AI's next generation.
Steph
Company Specialist at Welcome to the Jungle
Company
Funding (last 2 of 6 rounds)
Oct 2025
$1.4bn
SERIES E
Dec 2024
$600m
SERIES D
Total funding: $2.5bn
Company benefits
- Health & wellbeing: Comprehensive health benefits designed to support your overall wellness
- Time away: Paid time off for vacations, family bonding, and unexpected needs
- 401(k) match: Build your financial future with our 401(k) matching program
- Mental wellness: Resources and support for your emotional wellbeing and navigating life's challenges
Company HQ
Union Station, Denver, CO
Leadership
Cully Cavness
(Co-Founder, COO & President)Began 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.
Chase Lochmiller
(Co-Founder & CEO)Prior to co-founding Crusoe in 2018, Chase was a General Partner at Polychain Capital, a Quantitative Trade at Jump Trading Group, and a Managing Director of Algorithmic Trading at KCG Holdings.
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