Senior Mechanical Engineer

Crusoe is on a mission to accelerate the abundance of energy and intelligence. As the only vertically integrated AI infrastructure company built from the ground up, we own and operate each layer of the stack — from electrons to tokens — to power the world's most ambitious AI workloads. When you join Crusoe, you join a team that is building the future, faster. We're in the midst of the greatest industrial revolution of our time. The demand for AI compute is boundless, and power is a bottleneck. We're solving that — with an energy-first approach that makes AI infrastructure better for the world and faster for the people innovating with AI. We're looking for problem-solving, opportunity-finding teammates with a sense of urgency, who believe in the scale of our ambition and thrive on a path not fully paved — people who want to grow their careers alongside a team of experts across energy, manufacturing, data center construction, and cloud services. If you want to do the most meaningful work of your career, help our customers and partners advance their AI strategies, and be part of a high-performing team that believes in each other, come build with us at Crusoe. About This Role: The Tooling & Fixture Engineer is a senior technical contributor responsible for conceiving, designing, and sustaining the full suite of production tooling and fixtures that support Crusoe's modular integrated buildings and power distribution product lines. This role sits within the Manufacturing Engineering organization with a dotted-line relationship to the Design Engineering team, ensuring that tooling strategies are tightly coupled with product architecture decisions from the earliest design stages through steady-state production. At the senior/staff level, you are expected to own the tooling roadmap end-to-end: setting standards, mentoring junior tooling engineers, and driving DFM/DFMA influence upstream into the product design process. This is a full-time position critical to our ability to scale high-performance computing infrastructure. What You’ll Be Working On: - Tooling Roadmap Ownership: Define and maintain a multi-generational tooling and fixture strategy aligned with product roadmaps for modular buildings, low voltage switchboards, and medium voltage switchgear. - End-to-End Tool Design: Lead the design of complex jigs, fixtures, assembly aids, and test tooling from concept through fabrication qualification using SolidWorks; manage GD&T schemes to ensure repeatable assembly outcomes. - DFM/DFMA/DFMx Integration: Serve as the primary tooling voice in Design for Manufacturability and Assembly reviews, identifying risks early and advocating for design changes that reduce fixture complexity and cost. - Fabrication Vendor Management: Source, qualify, and technically manage tooling fabrication vendors; define acceptance criteria, manage first-article inspections, and resolve non-conformances. - Standards & Documentation: Establish company-wide standards for fixture design, work instructions, and tooling lifecycle documentation across all product lines. - Manufacturing Process Integration: Partner with Manufacturing Engineers to validate that tooling integrates cleanly with assembly sequences, ERP BOMs, and work order structures. - Continuous Improvement: Analyze assembly defects and technician feedback to identify tooling-driven root causes; implement permanent corrective actions. - Mentorship: Coach and review the work of mid-career and junior tooling engineers; provide technical direction on complex fixture design problems. What You’ll Bring to the Team: - Education: Bachelor's degree in Mechanical Engineering, Manufacturing Engineering, or equivalent discipline. - Experience: 8+ years of tooling, fixture, and production equipment design experience, ideally with structural metal fabrications or high-power electrical equipment. - Technical Mastery: Expert-level proficiency in SolidWorks and SolidWorks PDM, including weldments, sheet metal, and large