Controls Engineer, Thermofluids

The role

The Controls Engineer will own the control architecture for machines and test rigs, including compressors, motor drives, and expansion turbines. You will write safety interlocks, deliver capacity control, and validate control systems against hardware-in-the-loop.

What you will do

• Own the control architecture for the machine and the test rigs
• Write the safety interlocks and fault handling
• Deliver capacity control through motor and turbine speed
• Validate the control system against hardware-in-the-loop
• Carry the controls from the test cell into the production chiller
• Integrate with site BMS and the wider plant

Required qualifications

• 10+ years of experience in controls engineering for rotating machinery
• Experience in control architecture, safety interlocks, and hardware-in-the-loop validation
• Experience writing control logic for rotating machinery
• Experience designing interlocks for hardware protection or person safety
• Experience running hardware-in-the-loop testing
• Experience tuning loops on a live machine
• Experience handing over control systems with usable documentation
• Comfortable with regular travel of 25% or more

Nice to have

• Propulsion or vehicle test controls (engine sequencing, abort and safing logic)
• Variable-speed drives and high-speed motor control (VFDs, magnetic bearing controllers)
• Refrigeration and chiller control (superheat, head pressure, capacity staging)
• Industrial control platforms (Beckhoff, Siemens, Allen-Bradley, CODESYS)
• Model-based development and HIL (Simulink, dSPACE, NI VeriStand)

About the company

Fluidstack acquires power, designs and builds data centers, and operates them to deliver compute infrastructure for AI. They focus on speed and scale to build civilization-scale infrastructure.