Senior Thermal Engineer - Data Center

Johnson Controls • New Freedom, PA

1d • $90,000 - $120,000 • Onsite

About The Position

Johnson Controls’ Data Center Thermal Solutions team is seeking a Senior Thermal Engineer for the Advanced Technology & Innovation group. The role focuses on developing, validating, and deploying liquid cooling solutions, including direct-to-chip, immersion, and hybrid systems for hyperscale, colocation, and AI/HPC data centers. The ideal candidate will be highly self-driven, able to work independently with limited supervision, and bring strong knowledge of GPU-based AI hardware and its cooling and power variations across diverse AI workloads. This position is based onsite, minimum 3 days per week, at our Advanced Technology and Innovation Center located in New Freedom, PA. Candidates must be commuting distance to the facility or able to relocate.

Requirements

• PhD or Master’s in Mechanical Engineering or related field.
• Proven data center cooling experience, particularly in GPU/AI hardware environments.
• Strong knowledge of heat transfer, fluid mechanics, and thermodynamics.
• Proficiency in CFD tools (ANSYS, Fluent, Modelica, Icepak, Cadence 6Sigma) and instrumentation for performance validation.
• Demonstrated ability to work independently, set priorities, and deliver results with minimal supervision.
• Track record of innovation, patents, or technical publications in thermal management.

Responsibilities

• Design, analyze, and deploy liquid cooling systems (single-phase, two-phase, immersion, and hybrid) for high-density data centers.
• Perform thermal modeling, CFD simulations, and performance optimization for CPU and GPU workloads.
• Commission and validate CDUs, cold plates, immersion tanks, and thermal test vehicles at lab and facility scale.
• Evaluate system resiliency and reliability under operational and failure scenarios.
• Collaborate with hyperscalers, OEMs, and partners to align solutions with AI/HPC workload demands.
• Contribute to patent filings, publications, and industry standards engagement.

Benefits

• This role offers a competitive Bonus plan that will take into account individual, group, and corporate performance.
• This position includes a competitive benefits package.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior
• Education Level: Ph.D. or professional degree