Senior Data Center Thermal Modeling Engineer

Johnson Controls; Glendale (AZ); Hybrid; USD 100,000 - 140,000; Full time

Job summary

Johnson Controls seeks a Research and Advanced Development Engineer for its Data Center Thermal Technology Solutions group. Based at the Warren Johnson Engineering Lab in Glendale, WI, you will develop numerical models to simulate data center cooling systems and guide design with model results.

You’ll work across cooling loops, controls, and heat-rejection equipment, stay current on emerging technologies, and help shape future product offerings.

Qualifications

• Bachelor’s, Master’s or PhD in Mechanical Engineering or a related field.
• 7+ years of industry experience with thermal products or systems.
• Strong foundation in thermodynamics, heat transfer, and fluid mechanics.
• Experience with HVAC system design, refrigerant cycles, and component selection.
• Proficiency with numerical simulation tools for building and thermal applications (e.g., Modelica, MATLAB/Simulink, EES, EnergyPlus).
• Demonstrated ability to execute cross-functional projects.

Responsibilities

• Develop numerical simulations of thermal components used in data center applications.
• Integrate subsystems into complete thermal solutions, coordinating across cooling loops, controls, and heat-rejection equipment.
• Use simulation tools to predict chip-to-ambient performance of data center cooling systems.
• Apply system-level performance models to provide technical guidance to customers.
• Present project status, findings, and strategic recommendations across departments.
• Deliver presentations and/or white papers communicating Johnson Controls’ technical perspective on emerging technologies and system architectures.
• Participate in industry groups such as ASHRAE and the Open Compute Project.

Skills

Thermal engineering

Heat transfer

Thermodynamics

HVAC design

Numerical simulation

Education

Mechanical Engineering degree (Bachelors/Masters/PhD)

Tools

Modelica

MATLAB/Simulink

EES

EnergyPlus

Job description

Johnson Controls seeks a Research and Advanced Development Engineer for its Data Center Thermal Technology Solutions group. Based at the Warren Johnson Engineering Lab in Glendale, WI, you will develop numerical models to simulate data center cooling systems and guide design with model results.

You’ll work across cooling loops, controls, and heat-rejection equipment, stay current on emerging technologies, and help shape future product offerings.