• Support Custom Engineered Product Development in both Liquid Cooling and Air Cooled product families for Hyperscale customers • Develop optimized solutions using Industry Standards and best practices • Apply design engineering principles and practices, managing assigned portions of product development projects • Manage multiple project activities in parallel and may lead projects through completion • Work with Sales, Marketing, and R&D to develop product requirements based on customer needs • Analyze systems using a variety of engineering tools including FEA, analytical formulas, benchmark designs, etc. • Run through sizing and optimization exercises for pumps, valves, and flow control devices • Familiar with piping layouts, design, and material selection • Use DFMEA, PFMEA, and DFMA tools to improve quality and reliability of designs • Develop Bills of Materials (BOMs) • Assure full and accurate documentation for designs moving into commercialization • Work with operations to design solutions integrated into current manufacturing capabilities • Develop advanced designs in conjunction with operations to produce high quality designs that are value based • Work with sales and service to improve current designs and incorporate future needs into the existing platform • Work as an example and mentor to more junior mechanical engineers

• Focus on engineering and delivery of mechanical system design for healthcare and other complex facilities • Manage engineering projects and direct designers & other disciplines • Perform engineering activities and engage in project meetings • Provide technical services and project control direction • Conduct engineering design, evaluation, and planning of mechanical systems

• Lead the design and integration of complex subsystems for advanced semiconductor capital equipment • Architect mechanical, thermal, fluid, and structural solutions that drive system performance and reliability • Collaborate closely with customers and cross‑functional teams across the full product lifecycle • Analyze, improve, and define subsystem architectures influencing system performance • Co-Innovation Through Subsystem Architecture & Design • Develop detailed CAD models and engineering drawings for mechanical subsystems • Analyze system and subsystem interfaces, requirements, and specifications • Lead requirements decomposition and ensure bi-directional traceability • Establish subsystem validation strategies and verification plans • Perform structural, thermal, dynamic, and vacuum-related analyses using advanced FEA tools • Lead risk assessments including FMEAs and root cause analysis • Validate system reliability through load-path evaluation and stress analysis • Lead cross‑functional design reviews and drive subsystem integration • Champion DFX, VAVE, Lean methodologies, and continuous improvement initiatives • Mentor early‑career engineers and influence engineering culture • Ensure design compliance with global regulatory standards

Role Description The Principal Mechanical Design Engineer (Data Center Infrastructure) is a technical leader responsible for the architecture, integration, and validation of advanced mechanical systems supporting hyperscale data center environments. This role requires deep expertise in liquid cooling technologies (single-phase and two-phase), hydronic system design, structural integration, and manufacturable rack-level infrastructure solutions. This role is responsible for defining system performance requirements, developing technical specifications, selection and integration of critical components, and leading mechanical design from concept through production release. Responsibilities include: - Wetted material selection - Thermal and structural analysis - Fastening strategies - Component layout - Design for manufacturability Partners cross-functionally to deliver reliable, scalable, and cost-effective Data Center Infrastructure solutions while advancing innovation in liquid cooling performance. Qualifications - Bachelor’s degree in Mechanical Engineering, Systems Engineering, or a related engineering discipline from an accredited university. - 8 years' experience in mechanical design and integration of mission-critical systems. - Proven track record of successful system designs and implementations in a relevant industry. - Strong understanding of mechanical systems, integration strategy, and system coordination. - Familiarity with industry standards and regulations related to Energy Storage Systems and Data Center Infrastructure is preferred. - Excellent problem-solving skills and attention to detail. - Strong communication and teamwork abilities. Requirements - Lead the end-to-end mechanical design and engineering of hyperscale Data Center Infrastructure (DCI) systems, including liquid-cooled rack assemblies, CDUs, manifolds, enclosures, structural frames, and associated hydronic piping systems. - Serve as the technical authority for single-phase and two-phase liquid cooling architectures, including primary and secondary loop design, in-rack distribution, and system integration within hyperscale data center environments. - Define and validate operational performance requirements for liquid-cooled infrastructure, including pressure ratings, hydrostatic limits, temperature ranges, flow rates and uniformity, thermal expansion, durability, and serviceability. - Design, analyze, and validate machined components, welded fabrications, manifolds, and structural systems using advanced engineering principles, including stress analysis, finite element analysis (FEA), flow modeling, and structural load calculations to ensure mechanical integrity and code compliance. - Lead wetted material selection and compatibility analysis for liquid cooling systems, including corrosion mitigation strategies, surface treatments, cleanliness standards, and long-term durability considerations. - Develop and review CAD models and complete technical data packages using CREO, SolidWorks, or equivalent tools; ensure design accuracy, manufacturability, and system-level integration. - Author and approve technical specifications for piping systems, rack-level cooling infrastructure, and hydronic components, including installation guidelines, maintenance procedures, testing requirements, and compliance with applicable standards (ASME, ISO). - Establish and oversee validation protocols including hydrostatic pressure testing, leak detection and mitigation, flow resistance analysis, and corrosion verification to ensure regulatory compliance and operational reliability. - Evaluate customer design proposals and technical specifications to assess feasibility, manufacturability, cost, and risk; provide recommendations to optimize performance and total cost of ownership. - Lead cross-functional design reviews with electrical, thermal, manufacturing, quality, and supply chain teams to ensure full system integration and compliance with product specifications and applicable plumbing and hydronic codes. - Optimize rack manifold design and manufacturing processes, including machining, welding, surface finishing, connection interfaces, venting and draining strategies, and flow path optimization to enhance performance and manufacturability. - Drive continuous improvement in manufacturing assembly methods and tooling in collaboration with production teams and equipment vendors to improve quality, scalability, and cost efficiency. - Lead root cause investigations for complex mechanical failures identified during validation or field deployment and implement corrective design improvements. - Provide technical leadership in vendor qualification and management for mechanical components and liquid cooling subsystems. - Identify and mitigate technical risks impacting performance, schedule, or cost, and contribute to R&D initiatives advancing liquid cooling technologies and system innovation. Benefits - Medical, dental, and vision insurance plans - Paid time off accruing at a rate of 3.07 hours during your first year of employment - 4 weeks of paid parental leave - 11 company-paid holidays (9 fixed holidays and 2 optional floating holidays), subject to change yearly - 401(k) retirement plan - Employee stock purchase plan