Senior Mechanical Commissioning Engineer Data Centers

Fluidstack; San Francisco (CA); On-site; USD 161,000 - 203,000; Full time

Job summary

Fluidstack is seeking a commissioning lead to oversee the integration and testing of mechanical systems for mission-critical data centers in the San Francisco area. You will commission large-scale cooling plants, CDUs, liquid loops, and airside systems, ensuring all components operate as a unified system.

You will write rigorous test procedures from sequences of operation, execute tests, and coordinate with vendors under tight deadlines. Fluently reading P&IDs and controls drawings is required.

Qualifications

• Commissioning mechanical plant on mission-critical facilities through integrated systems testing.
• Written test procedures from sequences of operation and identified where sequences were wrong.
• Able to fluently read P&IDs and controls drawings.
• Troubleshoot live systems with vendors under deadlines.

Responsibilities

• Commission mechanical systems for gigawatt-scale data centers: chilled water plants, CDUs, liquid loops, airside systems (Level 2–Level 5).
• Write and execute test scripts proving capacity, redundancy, and failure response beyond basic on/off checks.
• Run functional and integrated systems tests with controls and electrical to ensure the building operates as a single system.
• Feed test findings back into standard designs to accelerate future site commissioning.

Skills

Commissioning

Test procedures

P&ID reading

Troubleshooting

Vendor coordination

Tools

Test scripting

Integrated systems testing

Controls drawings

Job description

Fluidstack is seeking a commissioning lead to oversee the integration and testing of mechanical systems for mission-critical data centers in the San Francisco area. You will commission large-scale cooling plants, CDUs, liquid loops, and airside systems, ensuring all components operate as a unified system.

You will write rigorous test procedures from sequences of operation, execute tests, and coordinate with vendors under tight deadlines. Fluently reading P&IDs and controls drawings is required.