Mechanical Commissioning Technician

The role

You will perform commissioning, testing and troubleshooting of mechanical systems that cool AI supercomputing data centers. The work runs from initial installation through full system turnover, alongside construction, engineering and operations teams.

What you will do

• Execute mechanical commissioning for chilled water, condenser water, cooling towers, pumps, heat exchangers, air handlers and liquid-cooling equipment.
• Perform flush, fill, leak and pressure tests; verify valve lineup, flow, temperature and pressure.
• Complete point-to-point checks with controls technicians and confirm sensors, actuators, interlocks and alarms.
• Troubleshoot and resolve mechanical issues during pre-commissioning, commissioning and startup.
• Develop and execute commissioning test procedures and documentation.
• Coordinate startup sequences and integrated system testing with contractors, vendors and engineers.
• Walk systems against drawings, mark redlines, write punch-list items and drive closeout.
• Follow safety protocols, LOTO procedures and quality standards.
• Maintain as-built documentation, test records and commissioning reports.
• Support training of operations and maintenance teams.

Required qualifications

• 3+ years of hands-on mechanical, HVAC, pipefitting or commissioning experience in data centers, power plants or large industrial facilities.
• Working knowledge of chilled-water plants, pumping systems, heat transfer equipment and mechanical distribution.
• Experience with commissioning and field test equipment.
• Ability to read piping and instrumentation diagrams, mechanical drawings and submittals.
• Current OSHA 10/30 or equivalent training.
• Willingness to work extended hours, nights and weekends.
• Ability to travel extensively and remain onsite during peak commissioning phases.
• Ability to work in industrial environments, climb ladders, lift moderate loads and wear PPE for extended periods.

Nice to have

• Prior commissioning experience on hyperscale data center or mission-critical projects.
• Experience with liquid-cooling distribution, cooling towers and primary/secondary pumping.
• Familiarity with building management or industrial control sequences.
• EPA Section 608 refrigerant certification.
• Technical degree or trade school certification in Mechanical Engineering Technology, HVAC or a related field.
• Proficiency with commissioning management software such as CxPro or Procore.

Before you apply

• Requires current OSHA 10/30 or equivalent training.

About the company

SpaceX was founded to make life multiplanetary. SpaceXSI is building Super Intelligence, including the Colossus supercomputers and Grok models.