Data Center Thermal Engineer: High-Density Liquid Cooling

Supermicro; San Jose (CA); On-site; USD 133,000 - 150,000; Full time

Job summary

Supermicro is seeking a Data Center Thermal Engineer to drive design, validation, and operation of high-density liquid cooling in AI labs and data centers. You will assist with fluid loops, CDU monitoring, and heat rejection testing while supporting GPU cluster cooling and tower management.

This role requires hands-on work, collaboration with hardware and facility teams, and strong troubleshooting and documentation skills to ensure reliable, scalable cooling solutions.

Qualifications

• BS degree in Mechanical/ Thermal Engineering or related field.
• 5+ years in thermal management, liquid cooling, or data center infra.
• Hands-on with thermal/fluid testing and cooling systems preferred.
• Understanding of CDU operation, pumps, valves, piping, and dielectric fluids.
• Ability to analyze system data and perform root-cause analysis.

Responsibilities

• Assist with design, installation, and assembly of high-density liquid cooling lines and CDUs.
• Troubleshoot hydraulic, thermal, and mechanical issues; perform RCA.
• Support site commissioning, energization, and performance testing of cooling systems.
• Develop runbooks, procedures, and troubleshooting documentation.
• Monitor fluid chemistry, pressure, flow, and system redundancy.
• Set up sensors, collect data, and support control-logic for telemetry analytics.
• Lead or coordinate FMEA reviews and containment procedures for leaks or excursions.
• Collaborate with hardware, thermal, controls, and facility teams during deployments.
• Inspect and qualify vendor components like heat exchangers, pumps, and manifolds.
• Validate system performance against design requirements.

Skills

Thermal management

Liquid cooling

Fluid systems

Data center infra

CFD concepts

D2C cooling

BMS/PLC interfaces

Root-cause analysis

Education

BS degree in Mechanical Engineering

Thermal/fluids coursework or project work

Tools

BMS/PLC systems

Instrumentation & sensors

Job description

Supermicro is seeking a Data Center Thermal Engineer to drive design, validation, and operation of high-density liquid cooling in AI labs and data centers. You will assist with fluid loops, CDU monitoring, and heat rejection testing while supporting GPU cluster cooling and tower management.

This role requires hands-on work, collaboration with hardware and facility teams, and strong troubleshooting and documentation skills to ensure reliable, scalable cooling solutions.