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Johnson Controls, a global leader in thermal management, mission-critical building systems, energy efficiency, and decarbonization, helps customers use energy more productively, reduce carbon emissions, and operate with the precision and resilience required in rapidly expanding industries such as data centers, healthcare, pharmaceuticals, advanced manufacturing, and higher education.
For more than 140 years, Johnson Controls has delivered performance where it really matters. Backed by advanced technology, lifecycle services and an industry-leading field organization, we elevate customer performance, turn goals into real-world results and help move society forward.
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Johnson Controls’ Data Center Product Architecture team is seeking a Principal Data Center Thermal Systems Engineer for the Advanced Technology & Innovation group. You will be a technical leader for thermal projects and teams within Data Center Thermal Solutions. You'll work independently to develop comprehensive thermal system solutions, coordinate multi-domain integration, and lead process improvement initiatives. You will be a recognized expert in one or more thermal domains with strong cross-domain knowledge essential for integrated system development. 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
Plan and execute complex thermal projects and product releases; complete full thermal system designs
Integrate subsystems into complete thermal solutions; coordinate across cooling loops, controls, and heat rejection
Define specifications for complete thermal systems including multi-domain requirements (thermal, controls, electrical)
Lead process improvement initiatives across thermal domains
May lead a team of 2-5 engineers plus technicians on thermal system projects
Present status and strategy information across departments; mentor Engineer II and Senior Engineers
What you will need
Required
Bachelor's degree in Mechanical Engineering
7 years experience with released thermal products or systems
Chiller industry experience, or large industrial HVAC industry 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)
Strong cross-domain knowledge across thermal, controls, electrical systems—generalists with 80% mastery across domains highly valued
Thermodynamic cycle analysis
Fluid mechanics and hydraulic system design
Thermal system component sizing and selection
Prototype fabrication and hands-on testing
Cross-functional project execution
Preferred
Software/Simulation experience
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)
Expert in one or more thermal domains (CDU, chiller, dry cooler, cold plate systems)
HIRING SALARY RANGE: $100,000 - $140,000 (Salary to be determined by the education, experience, knowledge, skills, and abilities of the applicant, internal equity, and alignment with market data.) This role offers a competitive Bonus plan that will take into account individual, group, and corporate performance. This position includes a competitive benefits package. The posted salary range reflects the target compensation for this role. However, we recognize that exceptional candidates may bring unique skills and experiences that exceed the typical profile. If you believe your background warrants consideration beyond the stated range, we encourage you to apply. To support an efficient and fair hiring process, we may use technology assisted tools, including artificial intelligence (AI), to help identify and evaluate candidates. All hiring decisions are ultimately made by human reviewers. For details, please visit the About Us tab on the Johnson Controls Careers site at https://jobs.johnsoncontrols.com/about-us
JCI is an Equal Opportunity Employer and does not discriminate on the basis of any protected categories.
Johnson Controls International plc. is an equal employment opportunity and affirmative action employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, age, protected veteran status, genetic information, sexual orientation, gender identity, status as a qualified individual with a disability or any other characteristic protected by law. To view more information about your equal opportunity and non-discrimination rights as a candidate, visit EEO is the Law If you are an individual with a disability and you require an accommodation during the application process, please visit here
At Johnson Controls, we transform the environments where people live, work, learn and play. As the global leader in smart, healthy and sustainable buildings, our mission is to reimagine the performance of buildings to serve people, places and the planet.
Building on a proud history of 140 years of innovation, we deliver the blueprint of the future for industries such as healthcare, schools, data centers, airports, stadiums, manufacturing and beyond through OpenBlue, our comprehensive digital offering.
Today, Johnson Controls offers the world`s largest portfolio of building technology and software as well as service solutions from some of the most trusted names in the industry.
Visit www.johnsoncontrols.com for more information.
