Senior Thermal Engineer, Expeditionary AI / HPC Data CentersPosted today$194K

The Thermal Engineering team's work is essential to support our rapid innovation cycle and maintain the performance and reliability of advanced defense technologies. Thermal Engineers own the full development life cycle from conceptual design through prototyping, lab and field…

What you'll do

• Own the thermal design and analysis of deployable data center cooling: systems—air-side and water-side cooling, heat rejection, chilled water plant, and liquid cooling—from rack and chip level up through the full facility.

• Use first principles to discern the right level of analysis, running hand: calcs, spreadsheets, and MATLAB/Python first-order models before detailed design.

• Define cooling architecture and heat-rejection strategy—CRAH/CRAC, air-side: economization, chilled water plants, dry coolers, CDUs, rear-door heat exchangers, and direct-to-chip and immersion liquid cooling—to keep equipment within limits as power density scales.

• Develop cooling approaches for high-density racks and trade off air, liquid,: and hybrid cooling for modular, transportable systems in austere, high-ambient environments.

• Work with electrical, mechanical, and facilities engineers to characterize IT: and equipment heat loads across operating and failure modes.

• Weigh cooling architectures against reliability, efficiency (PUE/WUE), and: total cost, driving trade studies that balance thermal margin with capital and operating cost.

What they're looking for

• Own the thermal FEA/CFD and system models, predict facility performance, and: set red/yellow limits for commissioning and operation.
• Lead prototype builds, field testing, commissioning, and operational: validation of cooling designs (CAD, sensor and DAQ selection, data post-processing, results).
• Present thermal status at internal and customer reviews with a clear view of timelines and technical status.
• Develop internal tools to improve analysis effectiveness and efficiency.