Role Overview
The Senior Staff Mechanical Systems Engineer - Spark position is a full-time role based in Denver, Colorado, embedded within the Spark Modular Data Center Business Unit at Crusoe. This role suits an experienced mechanical engineer with 8-12 years of background in fluid mechanics and thermal systems who wants to lead the design of advanced modular data center infrastructure.
Key Responsibilities
Own system-level design for direct-to-chip cooling and hydronic infrastructure, including coolant distribution units, manifolds, and leak-detection mechanisms.
Execute thermal and fluid calculations such as heat load modeling, flow network analysis, and pump sizing.
Apply mechanical engineering principles to optimize containerized envelope design, structural integrity, and environmental resiliency.
Collaborate with external design partners and internal teams to review CAD models, BIM files, and manufacturing documentation.
Partner with contract manufacturers to optimize modular connections and skid assemblies for rapid factory assembly and field commissioning.
Drive the mechanical and thermal roadmap for future Spark generations transitioning to high-density liquid-cooled architectures.
Provide sustaining engineering support for deployed assets, resolving component issues and implementing engineering change orders.
Requirements
Bachelor's degree in Mechanical Engineering or a related discipline.
Eight to twelve years of professional mechanical engineering experience with expertise in fluid mechanics, heat transfer, and structural integrity.
Hands-on experience designing, validating, or integrating complex liquid-cooling loops.
Understanding of thermal engineering fundamentals to collaborate effectively with thermal specialists.
Proficiency with mechanical CAD tools and familiarity with thermal-fluid simulation software.
Working knowledge of mechanical codes and standards such as ASME piping codes and ASHRAE thermal guidelines.
Experience working alongside external engineering partners and internal development teams.
Nice to Have
Master's degree in Mechanical Engineering or a related field.
Direct experience in modular data center design.
Background in complex adjacent industries like aerospace, automotive, energy, or industrial process hardware.
Experience leading design-for-manufacturability initiatives with contract manufacturers.
Familiarity with BIM workflows and full-lifecycle drawing packages.
Professional Engineer license.
Skills and Tools
Spark
Mechanical CAD tools like SolidWorks, Creo, or Inventor
Thermal-fluid simulation tools such as ANSYS Fluent, CFX, or 6SigmaET
Direct-to-chip liquid cooling and hydronic systems design
Salary and Benefits
Annual base compensation ranging from $190,000 to $215,000 plus bonus
Restricted Stock Units included in all offers
Comprehensive health, dental, and vision insurance with employer HSA contributions
Paid time off, paid holidays, and paid parental leave
401(k) retirement plan with company match up to four percent of salary
Life insurance, short-term and long-term disability
Professional development, tuition reimbursement, and mental health support
Commuter benefits and cell phone stipend
Volunteer time off
About the Company
Crusoe operates as a vertically integrated AI infrastructure company that owns and operates each layer of the technology stack from power generation to AI tokens. The company addresses the energy bottlenecks of the current industrial revolution by deploying energy-first solutions that power massive AI workloads sustainably.
How to Apply
Interested candidates should visit the official Crusoe careers page to submit an application for this position.
