Senior Staff Mechanical Systems Engineer (Spark)

Join Crusoe, a vertically integrated AI Factory company on a mission to accelerate the abundance of energy and intelligence. As a Senior Staff Mechanical Systems Engineer, you will play a key role in the design and execution of our modular data center platform, collaborating with internal and external partners to turn innovative mechanical designs into scalable products. You will own the system-level design for liquid cooling, optimize containerized envelope design, and drive the mechanical and thermal roadmap for future Spark generations.

• Assurer la conception et l'intégration de systèmes de refroidissement liquide complexes, y compris les unités de distribution de liquide et les boucles hydroniques.
• Collaborer avec des partenaires de conception externes et des équipes internes pour affiner les modèles CAO et les documents de fabrication.
• Diriger l'évolution de la plateforme Spark, en passant des architectures refroidies par air aux architectures refroidies par liquide de haute densité.

• Direct experience designing, validating, or integrating complex liquid-cooling loops (DLC, CDUs, pumping skids, heat exchangers, or hydronic systems)
• Working knowledge of relevant mechanical codes and standards (e.g., ASME B31.x piping codes, ASHRAE thermal guidelines, NFPA data center cooling requirements)
• Bachelor's degree in Mechanical Engineering or a related field; Master's degree a plus
• Proficiency with mechanical CAD tools (e.g., SolidWorks, Creo, or Inventor) and familiarity with thermal-fluid simulation tools (e.g., ANSYS Fluent/CFX, 6SigmaET, or equivalent)
• 8-12 years of mechanical engineering experience, with deep, hands-on expertise in fluid mechanics, heat transfer, structural integrity, and mechanical system dynamics
• Demonstrated experience collaborating with external design & engineering partners while contributing to internal design iterations and CAD review workflows
• Comfort navigating fast-moving environments where physical hardware and compute infrastructure are co-developed concurrently
• Strong working understanding of thermal engineering fundamentals (heat transfer, CFD/thermal modeling concepts) sufficient to collaborate closely and speak the same technical language as dedicated thermal engineers — you don't need to be the thermal expert, but you need to design mechanical systems that hold up under their analysis
• Direct experience in modular data center design
• Background in complex adjacent industries such as aerospace, automotive, energy, or industrial process hardware
• Familiarity with BIM workflows and full-lifecycle drawing packages (30/60/90/100%)
• Experience leading design-for-manufacturability efforts with contract manufacturers
• Professional Engineer (PE) license