Principal Mechanical Engineer - Data Center Liquid Cooling Systems

Mitsubishi Heavy Industries, Ltd.•Carrollton, TX

2h•Hybrid

About The Position

Mitsubishi Heavy Industries America, Inc. (MHIA) is hiring a Principal Mechanical Engineer focused on data center liquid cooling systems, initially Coolant Distribution Units (CDUs). This hybrid role is based in Plano, Texas. The position is a core technical leadership role responsible for mechanical engineering authority across product design, customer technical engagement, supplier coordination, and service readiness. It bridges customer requirements, supplier capabilities, and internal productization objectives to deliver scalable, reliable, manufacturable, and commercially viable CDU solutions from concept through mass production and lifecycle support. The role collaborates with stakeholders in Japan and the United States to support U.S. business growth and MHIA’s long-term objectives. The ideal candidate has at least 12 years of experience, including at least 7 years in mechanical system design and supplier-facing technical leadership for industrial or packaged equipment. MHIA cannot sponsor employment visas or consider individuals on time-limited visa status. The role involves 25% travel and a standard Monday-through-Friday work week. Weekend or late-night work may be applicable. Physical requirements include sitting for long periods, standing, walking, talking and/or hearing; frequently lifting or moving up to 10 pounds and occasionally up to 25 pounds.

Requirements

Bachelor’s degree in mechanical engineering or equivalent experience.
At least 12 years of experience, including at least 7 years in mechanical system design and supplier-facing technical leadership for industrial or packaged equipment such as pumps, heat exchangers, HVAC systems, skid-mounted units, or thermal management systems.
Ability to read, review, and interpret mechanical drawings and technical specifications, including P&IDs, general arrangements, and mechanical schematics.
Proven experience working across design, manufacturing, quality, supply chain, and service organizations.
Strong negotiation and coordination skills to support pre-award alignment on scope, schedule, responsibilities, and commercial assumptions.
Project management capabilities, including action, risk, and issue tracking, escalation management, and alignment across internal and external stakeholders.
Domain knowledge of data center cooling systems and an understanding of CDU configurations at a system and interface level.
Ability to triage customer and supplier specifications, define scope and interface boundaries, and transition aligned inputs to internal engineering teams.
Ability to collaborate and communicate effectively with Japanese stakeholders and team members in a global, cross-cultural environment.
Must not require employment visa sponsorship or have time-limited visa status, as MHIA cannot sponsor employment visas or consider candidates with time-limited visa status.

Nice To Haves

Knowledge of CDUs, liquid cooling systems, or data center thermal management solutions.
Experience supporting Hyperscalers or large-scale data center customers.
Experience contributing to service design or lifecycle cost optimization.
Familiarity with applicable U.S. standards and certifications, such as UL/CSA, ASME, NFPA, and NEC, and their impact on system configuration and supplier deliverables.
Experience with factory and site activities, including FAT/SAT, commissioning, and field troubleshooting support.
Supplier audit or development experience, such as SQA/SDE activities, including evaluation of technical capability, quality systems, and execution readiness.
Familiarity with U.S.-based tendering, RFQ, and proposal workflows, including technical clarification and alignment during bid phases.

Responsibilities

Serve as the technical authority for CDU mechanical system design, including pumps, heat exchangers, piping, valves, sensors, and skid or enclosure integration.
Review and evaluate CDU mechanical designs, drawings, specifications, and calculations, providing technical feedback and approval direction.
Lead product design from concept through proof of concept, pilot builds, and mass production, applying design-for-manufacturing and design-for-service principles.
Assess CDU performance, redundancy, reliability, safety, compliance, controllability, load-following performance, operability, maintainability, and durability against internal and customer requirements.
Act as a technical interface with customers on CDU architecture, performance, and integration; support technical reviews, RFIs/RFPs, and design clarification processes with Hyperscaler/GAFAM customers.
Translate customer requirements into actionable design inputs and specifications; propose solutions aligned with customer operational and business needs.
Capture Voice of Customer feedback and incorporate it into product design and roadmap decisions.
Coordinate technical alignment between customers and suppliers, resolving gaps and clarifying responsibilities.
Evaluate supplier engineering capabilities, design maturity, quality and inspection processes, certifications, compliance readiness, and mass-production scalability.
Work with supply chain teams to assess inventory strategy, lead times, and production capacity in relation to sales and order forecasts.
Align engineering requirements with manufacturing processes and production schedules.
Lead or support supplier technical issue resolution, root cause analysis, and corrective action follow-up.
Drive cost-down and value engineering while maintaining performance, reliability, and safety.
Support logistics and transportation considerations affecting CDU mechanical design and packaging.
Contribute to the definition of CDU service offerings, including scope, service content, and boundary conditions.
Review IOM manuals and coordinate technical alignment and revisions with suppliers.
Support development of service revenue models and evaluate service profitability and cost structures.
Gather customer service needs and coordinate with suppliers and service partners to ensure readiness.
Support the creation and proposal of Service Level Agreements aligned with customer expectations and product capability.
Perform other relevant duties as assigned.