Electrical Engineer

Metric Geo; Sandy Springs (GA); Hybrid; USD 110,000 - 170,000; Full time

Benefits offered by this job

Hybrid work from New York

Job summary

Metric Search has been retained by a rapidly scaling AI infrastructure company to hire a Controls Engineer for its Thermofluids R&D team. The role centers on control architectures for a new chiller, safe operation, HIL validation, and production integration.

Hybrid work from New York is offered; you will design and verify control systems for rotating machinery, work with VFDs, and ensure robust interlocks and reliable documentation.

Qualifications

• You've written control logic for rotating machinery and commissioned it on a live machine.
• You've designed interlocks where a fault means destroyed hardware or an injured person.
• You've run HIL testing that caught something real before commissioning.
• You've tuned loops on a live plant and reconciled model vs hardware behaviour.
• You've handed a control system to users with usable 3am documentation.

Responsibilities

• Develop control architectures for a new chiller and its test rigs, including compressor, motor drive, and loop control.
• Implement safety interlocks and fault handling for high-risk machinery.
• Perform hardware-in-the-loop validation of the full control system.
• Transition controls from test cell to production and integrate with site BMS.
• Collaborate with senior engineers to ensure reliability and documentation for operators.

Skills

Control systems

Rotating machinery

HIL testing

Safety interlocks

Tools

Beckhoff

Siemens

Allen-Bradley

CODESYS

Simulink

dSPACE

NI VeriStand

Job description

Controls Engineer, R&D - Thermofluids & Rotating Machinery Metric Search has been retained by a rapidly scaling AI infrastructure company to find a Controls Engineer for its Thermofluids R&D team. Our client is building and operating compute capacity at a scale the cooling industry has never had to deliver, and rather than wait on a vendor base that can't keep up, they are taking compressor and chiller design in-house: new machine architectures, from blank sheet to production, built thousands of times over.

• The control architecture for a new chiller and its test rigs, spanning the compressor, motor drive, expansion turbine and the loop around them.
• Safety interlocks and fault handling for a machine whose working fluid can cross its critical point within the normal operating range.
• Capacity control through motor and turbine speed rather than throttling valves, keeping the process fluid path valve-free at the design point.
• Hardware-in-the-loop validation of the full control system, proving every interlock fires before it touches real hardware.
• Taking the controls from the test cell into the production chiller, including integration with site BMS and the wider plant. What we're looking for
• You've written control logic for rotating machinery and commissioned it on a live machine.
• You've designed interlocks where a fault means destroyed hardware or an injured person, and can justify each one from first principles.
• You've run HIL testing that caught something real before commissioning.
• You've tuned loops on a live plant and worked out why the model and the hardware disagreed.
• You've handed a control system to people who didn't write it, with documentation they could use at 3am. 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); Beckhoff, Siemens, Allen-Bradley or CODESYS; model-based development and HIL (Simulink, dSPACE, NI VeriStand). Why this role
• Genuine first-of-its-kind engineering: nobody sells the machine you'll be controlling.
• Whatever you land gets deployed at fleet scale, not left in a lab.
• Small, senior, high-autonomy team with a clear mandate and real urgency.
• Hybrid working from New York