[Hiring] Principal Mechanical Commissioning Engineer @Volta

Role Description

As Principal Mechanical Commissioning Engineer, you will be Volta's technical authority for mechanical commissioning. You will set the standards that prove cooling systems on every DSX site can carry high-density AI workloads under normal, degraded and recovery conditions.

This is a principal-level individual contributor role. Reporting to the Senior Director, Global Commissioning & Handover, your standards will govern every site, contractor and commissioning agent we use, and you will make the final technical call on mechanical acceptance questions across.

What you will do

• Mechanical commissioning standards:
  • Own Volta's global mechanical commissioning standards, from L1 to L5 off-site commissioning, and integrated system testing.
  • Define the sequence of operations (SOO), for all the mechanical commissioning activities through L1 to L5.
  • Set test strategy for cooling plant, pumps, hydronics, air systems, water treatment and the facility side of liquid cooling.
  • Define cooling failure, redundancy and recovery scenarios under representative AI loads.
• Technical authority:
  • Act as the escalation point for thermal, flow and controls issues and disputed evidence across all sites.
  • Set the bar commissioning agents and contractors are selected and measured against.
  • Integrate mechanical testing with CDU, electrical, BMS/PMS and turn-up requirements.
• Capability and improvement:
  • Evolve the standards and reference design using test results and operating data.
  • Build mechanical commissioning capability across Volta and its partners.

Qualifications

• Recognised senior authority in mechanical commissioning of hyperscale or mission-critical data centres, typically 10+ years.
• A track record writing and owning mechanical commissioning standards across a portfolio.
• Deep knowledge of cooling systems, hydronics, water quality, balancing and mechanical controls.
• Experience leading integrated systems testing and judging thermal and hydraulic performance evidence.
• Ability to make high-consequence acceptance calls with designers, vendors and contractors.
• Experience influencing across functions and regions without direct authority.

Nice to have

• High-density AI infrastructure and liquid cooling.
• Dynamic load testing and cooling failure recovery.
• Mechanical commissioning across international programmes.

Benefits

• Competitive salary based on the work you do here, not your previous salary.
• Equity in Volta, giving you the opportunity to share in the company's long-term success.
• Retirement/pension contributions.
• Comprehensive health, wellbeing and insurance benefits.
• Generous number of vacation days each year.