Demo

Thermal Systems Engineer II | Thermal Systems Engineer II

Johnson Controls International
Freedom, PA Full Time
POSTED ON 8/20/2026
AVAILABLE BEFORE 10/19/2026

What you will do
Johnson Controls is seeking a Senior Thermal Data Center Systems Engineer to support the thermal subsystem or component designs within the data center cooling product portfolio. In this role, you will operate with minimal supervision, determining approaches to thermal solutions and leading small technical efforts. You will demonstrate proficiency across multiple thermal domains and understands the complete thermal chain from server to ambient. 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.

How you will do it

Own thermal subsystem or component designs for data center cooling products (dry coolers, remote condensers, CDUs, cold plate systems)

• Define specifications for thermal features or products; develop test protocols and acceptance criteria

• Lead prototype development and validation activities; develop and execute comprehensive test plans

• Integrate multiple components into subsystem solutions understanding the complete thermal chain

• Participate in process improvement for testing and analysis methods

• Guide and mentor less experienced engineers; represent Engineering in cross-functional activities

What you will need
Required

Bachelor of Science in Mechanical Engineering or related field required
2 years of thermal/HVAC design experience
Microsoft 365/Excel (including basic macros/VBA for data analysis and reporting)
CAD proficiency (SolidWorks, Creo, or equivalent)
Engineering calculations and documentation (MathCAD, EES, or equivalent)
Heat transfer analysis (conduction, convection, two-phase)
Thermodynamic cycle analysis
Fluid mechanics and hydraulic system design
Thermal system component sizing and selection
Product development lifecycle experience
Prototype fabrication and hands-on testing
 Cross-functional project execution

Preferred
Python scripting and environment management (package installation, virtual environments, basic automation)
 CFD (ANSYS Fluent, Star-CCM , OpenFOAM, or equivalent)
FEA (ANSYS Mechanical, Abaqus, or equivalent)
MATLAB/Simulink for system modeling and controls
Controls fundamentals (feedback loops, PID tuning, system response)
Electrical systems basics (motor sizing, VFDs, power distribution)
Refrigeration system design and refrigerant properties
Data center cooling architectures (direct liquid cooling, rear-door heat exchangers, CDUs)

|

What you will do
Johnson Controls is seeking a Senior Thermal Data Center Systems Engineer to support the thermal subsystem or component designs within the data center cooling product portfolio. In this role, you will operate with minimal supervision, determining approaches to thermal solutions and leading small technical efforts. You will demonstrate proficiency across multiple thermal domains and understands the complete thermal chain from server to ambient. 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.

How you will do it

Own thermal subsystem or component designs for data center cooling products (dry coolers, remote condensers, CDUs, cold plate systems)

• Define specifications for thermal features or products; develop test protocols and acceptance criteria

• Lead prototype development and validation activities; develop and execute comprehensive test plans

• Integrate multiple components into subsystem solutions understanding the complete thermal chain

• Participate in process improvement for testing and analysis methods

• Guide and mentor less experienced engineers; represent Engineering in cross-functional activities

What you will need
Required

Bachelor of Science in Mechanical Engineering or related field required
2 years of thermal/HVAC design experience
Microsoft 365/Excel (including basic macros/VBA for data analysis and reporting)
CAD proficiency (SolidWorks, Creo, or equivalent)
Engineering calculations and documentation (MathCAD, EES, or equivalent)
Heat transfer analysis (conduction, convection, two-phase)
Thermodynamic cycle analysis
Fluid mechanics and hydraulic system design
Thermal system component sizing and selection
Product development lifecycle experience
Prototype fabrication and hands-on testing
 Cross-functional project execution

Preferred
Python scripting and environment management (package installation, virtual environments, basic automation)
 CFD (ANSYS Fluent, Star-CCM , OpenFOAM, or equivalent)
FEA (ANSYS Mechanical, Abaqus, or equivalent)
MATLAB/Simulink for system modeling and controls
Controls fundamentals (feedback loops, PID tuning, system response)
Electrical systems basics (motor sizing, VFDs, power distribution)
Refrigeration system design and refrigerant properties
Data center cooling architectures (direct liquid cooling, rear-door heat exchangers, CDUs)

Salary : $1,000 - $1,000,000

If your compensation planning software is too rigid to deploy winning incentive strategies, it’s time to find an adaptable solution. Compensation Planning
Enhance your organization's compensation strategy with salary data sets that HR and team managers can use to pay your staff right. Surveys & Data Sets

What is the career path for a Thermal Systems Engineer II | Thermal Systems Engineer II?

Sign up to receive alerts about other jobs on the Thermal Systems Engineer II | Thermal Systems Engineer II career path by checking the boxes next to the positions that interest you.
Income Estimation: 
$96,240 - $123,168
Income Estimation: 
$120,579 - $154,482
Income Estimation: 
$115,522 - $153,258
Income Estimation: 
$104,606 - $124,147
Income Estimation: 
$111,859 - $131,446
Income Estimation: 
$110,457 - $133,106
Income Estimation: 
$105,809 - $128,724
Income Estimation: 
$122,763 - $145,698
Employees: Get a Salary Increase
View Core, Job Family, and Industry Job Skills and Competency Data for more than 15,000 Job Titles Skills Library

Job openings at Johnson Controls International

  • Johnson Controls International Minot, ND
  • Johnson Controls, a global leader in thermal management, mission-critical building systems, energy efficiency, and decarbonization, helps customers use ene... more
  • 3 Days Ago

  • Johnson Controls International DC, DC
  • We are seeking a Security Systems Infrastructure Engineer to join our federal team supporting our Electronic Security Systems (ESS) projects. This is a hyb... more
  • 3 Days Ago

  • Johnson Controls International Honolulu, HI
  • HVAC Mechanical Systems Tech Trdmn (un) What you will do Are you looking to increase your HVAC knowledge and learn firsthand from some of the top HVAC team... more
  • 3 Days Ago

  • Johnson Controls International Westbrook, ME
  • About us Johnson Controls, a global leader in thermal management, mission-critical building systems, energy efficiency, and decarbonization, helps customer... more
  • 3 Days Ago


Not the job you're looking for? Here are some other Thermal Systems Engineer II | Thermal Systems Engineer II jobs in the Freedom, PA area that may be a better fit.

  • Johnson Controls International Freedom, PA
  • What you will do Johnson Controls is seeking a Thermal Data Center Systems Engineer! This is an entry-level position within the Data Center Thermal Solutio... more
  • 18 Days Ago

  • Johnson Controls International Freedom, PA
  • What you will do Johnson Controls’ Data Center Product Architecture team is seeking a Senior Staff Data Center Thermal Systems Engineer for the Advanced Te... more
  • 18 Days Ago

AI Assistant is available now!

Feel free to start your new journey!