Senior Mechanical Engineer

TA Digital Group (TADG) builds complex mission-critical environments and delivers digital infrastructure solutions for hyperscale and enterprise customers. The Senior Mechanical Engineer provides owner-side technical leadership and risk management for data center developments from site evaluation through IFC design, overseeing consultants, system strategies, equipment selections, tenant programming, construction support, and commissioning.

Responsibilities:

• Serve as the internal mechanical subject matter expert supporting development, design, construction, and strategy teams across assigned projects
• Lead mechanical system strategy, including cooling architecture selection, redundancy philosophies, and scalability planning
• Support early-stage site evaluation with particular emphasis on water use, heat rejection strategies, and coordination with water authorities and utilities
• Lead or support client (tenant) mechanical programming efforts, including review of technical matrices, performance requirements, and basis-of-design documentation
• Oversee and technically manage external mechanical engineering consultants to ensure alignment with internal standards, tenant requirements, codes, and schedule
• Review mechanical designs at all phases, including chilled water systems, CRAH/CRAC strategies, heat rejection equipment, controls/BMS integration, and make-up water systems
• Review major mechanical equipment selections and submittals, ensuring suitability for hyperscale, AI, and high-density deployments
• Support both:
• Turnkey projects: ensuring full mechanical system compliance through the data hall
• Powered shell projects: ensuring base building infrastructure provides flexibility for future tenant build-outs
• Provide technical input to RFQs/RFPs, tenant proposals, and responses to client technical inquiries
• Contribute to platform standardization, including development of mechanical design standards and reference configurations
• Support construction and commissioning phases as required, including responses to RFIs and participation in startup or acceptance activities
• Represent the company in project meetings with internal stakeholders, consultants, utilities, and tenants
• Travel up to ~30% as required by project needs, with flexibility during early project phases
• External consultant supervision only
• This role may mentor junior engineers or design managers but does not initially require direct reports
• This role may evolve into a discipline lead position depending on experience and organizational needs

Requirements:

• To perform this job successfully, an individual must be able to perform all of the essential functions of the position with or without reasonable accommodations
• Bachelor's degree in Mechanical Engineering or equivalent applicable professional experience
• 7+ years of experience in mechanical engineering, design management, or owner-side engineering roles
• Prior data center or mission-critical facilities experience required
• Demonstrated client-facing experience, including participation in technical workshops or programming sessions
• Experience overseeing third-party engineering firms and reviewing designs and equipment submittals
• Strong experience with air-cooled chiller systems required
• Ability to balance standardization with client-specific requirements in a fast-moving development environment
• Strong communication skills and ability to represent the company in client-facing settings
• Proficiency with Microsoft Office and Bluebeam
• exposure to liquid-to-chip or hybrid cooling solutions strongly preferred
• Field or field-facing experience (construction support, commissioning, or startup) preferred