Mechanical Commissioning Engineer na xAI

Presencial - Memphis, Tennessee; Southaven, Mississippi

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SpaceXAI seeks a Mechanical Commissioning Engineer to execute the buildout, startup, and handover of mechanical systems for its high-performance data centers. The role is full-time and onsite, involving commissioning HVAC, cooling, and fluid distribution systems, testing, troubleshooting, documentation, and training. The position requires a bachelor’s degree in STEM or related field and at least one year of experience, with preferred expertise in mechanical cooling, commissioning equipment, and data center systems.

Requirements

Skills

  • Bachelor’s degree in STEM degree or trade school certification in Mechanical Engineering Technology, HVAC, or a related field
  • 1+ years of hands-on mechanical experience in HVAC, commissioning, testing, construction, or a related field (data centers, power plants, semiconductor facilities, commercial buildings, or other industrial environments).
  • Expertise in mechanical cooling and air-handling systems, including chillers, cooling towers, CRAC/CRAH units, precision air handling, chilled water plants, and/or high-density liquid cooling.
  • Working knowledge of commissioning test equipment (manometers, anemometers, ultrasonic flow meters, pressure/temperature calibrators, power analyzers, etc.), or demonstrated aptitude to learn it in the field.
  • Familiarity with relevant codes and standards (ASHRAE, SMACNA, NFPA, ASME, IMC, LEED, Uptime Institute).
  • Ability to read, interpret, and redline mechanical drawings, P&IDs, control schematics, and sequence of operations.
  • Experience coordinating with multi-discipline teams, contractors, and vendors in construction environments.
  • Ability to work safely in industrial construction environments and follow LOTO, NFPA, OSHA, and SpaceXAI safety protocols.
  • Commissioning (Cx) experience, including functional performance testing, airflow/water flow verification, system balancing, integrated system testing, or system turnover.
  • Data center cooling systems and prior work on hyperscale or mission-critical projects (100+ MW scale a plus).
  • NEBB, AABC, or equivalent Certification in Testing, Adjusting, and Balancing (TAB).
  • Hands-on experience with BMS/BAS controls troubleshooting and integration (BACnet, Modbus, LON, etc.).
  • Knowledge of refrigerant systems, direct liquid cooling, and advanced heat rejection technologies.
  • Current OSHA 30 certification (or equivalent).
  • Proficiency with commissioning management platforms (CxPro, Procore, PlanGrid, or similar).
  • Technical degree or trade school certification in Mechanical Engineering Technology, HVAC, or a related field.
  • Experience implementing Integrated Systems Testing (IST) and Owner’s Project Requirements (OPR) verification.
  • Willingness to travel extensively and work extended hours, nights, and weekends during critical commissioning and startup windows.
  • Ability to travel extensively to SpaceXAI construction sites and remain onsite for extended periods during peak commissioning phases.
  • Physical capability to work in industrial environments, climb ladders/stairs, lift moderate loads (up to 50 lbs), and wear full PPE for long durations.
  • Valid driver’s license and ability to meet SpaceXAI’s driver eligibility requirements.

Responsibilities

  • Execute all mechanical commissioning activities for HVAC systems, chillers, cooling towers, CRAC/CRAH units, pumps, heat exchangers, piping systems, hydronic loops, and associated controls in hyperscale data center environments.
  • Execute functional performance testing, airflow/water flow verification, system balancing, integrated system testing, and system turnover to operations.
  • Troubleshoot and resolve complex mechanical, controls, and process issues during pre-commissioning, commissioning, and startup phases.
  • Develop and review detailed commissioning test procedures, scripts, checklists, and documentation in alignment with project specifications, industry standards, and SpaceXAI requirements.
  • Coordinate with EPC contractors, OEM vendors, design engineers, and SpaceXAI stakeholders for system energization, startup sequences, and integrated system validation.
  • Champion safety by enforcing strict adherence to LOTO, NFPA, OSHA, and SpaceXAI safety protocols; participate in daily safety briefings and job hazard analyses.
  • Maintain comprehensive as-built documentation, test records, issue logs, and final commissioning reports.
  • Support and deliver training programs for operations and maintenance teams on commissioned systems.
  • Participate in constructability reviews, design feedback sessions, and lessons-learned meetings to continuously improve installation quality and future project execution.
  • Support commissioning schedules and punch-list resolution to meet aggressive project timelines.

Technologies

BACnetModbusLONCxProProcorePlanGrid

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