[Skip to main content](#main-content) [OpenNash Jobs](https://jobs.opennash.com/) [Hiring report](/reports/hiring/) · [All Johnson Controls International jobs](https://jobs.opennash.com/companies/johnson-controls-international/) · [Search jobs](/search/) Johnson Controls International # Senior Staff Thermal Systems Engineer New Freedom-Pennsylvania-United States of America Full-time Senior individual contributor Operations Listed on Johnson Controls International’s official careers site. Posted January 20, 2026. Check that it is still open and apply there. [Apply on Johnson Controls International’s careers site →](https://jci.wd5.myworkdayjobs.com/JCI/job/New-Freedom-Pennsylvania-United-States-of-America/Senior-Staff-Thermal-Systems-Engineer_WD30260196) [OpenNash Jobs](https://jobs.opennash.com/) / [Johnson Controls International](https://jobs.opennash.com/companies/johnson-controls-international/) / Senior Staff Thermal Systems Engineer ## Job description What you will do Johnson Controls’ Data Center Product Architecture team is seeking a Senior Staff Data Center Thermal Systems Engineer for the Advanced Technology & Innovation group. You will be a technical and business leader with business unit influence. You’ll drive long-range planning for business unit thermal products, champions thermal technology initiatives across Data Center Solutions, and defines integration standards ensuring modular thermal stack interoperability. You will be considered a system architect and recognized expert across thermal, controls, electrical, and mechanical domains with industry knowledge. 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 - Drive long-range planning for business unit thermal products; serve as system architect and global resource for thermal design direction - Define integration standards across product lines; ensure modular thermal stack interoperability - Define and coordinate product family specifications; establish business unit thermal standards and design guidelines Champion thermal technology initiatives across Data Center Solutions; exhibit business unit influence - Supervise technical team; lead thermal system architecture efforts Strategic communicator representing organization for company-wide thermal initiatives; mentor Principal and Staff Engineers globally What you will need Required - Bachelor's degree in Mechanical Engineering or related discipline - 14+ years experience with multiple released thermal products/systems and recognized throughout division and/or industry Chiller industry experience, or large industrial HVAC industry experience System architect for data center thermal solutions Recognized expert across thermal, controls, electrical, and mechanical domains Expert in multiple technical domains (thermal, controls, electrical, mechanical) 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 - Master’s degree 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) 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 a glance - Posted by the employer: Jan 20, 2026 - First seen by OpenNash: Oct 13, 2026 - Last checked: Oct 20, 2026 - Listed for: 273 days - Location: New Freedom-Pennsylvania-United States of America - Employment type: Full-time[Apply on Johnson Controls International’s careers site →](https://jci.wd5.myworkdayjobs.com/JCI/job/New-Freedom-Pennsylvania-United-States-of-America/Senior-Staff-Thermal-Systems-Engineer_WD30260196) ## More jobs at Johnson Controls International ### [NextGen Hardware Engineer- HVACR](https://jobs.opennash.com/companies/johnson-controls-international/jobs/73f288abc9dacd446f33/) New Freedom-Pennsylvania-United States of America ### [Principal Product Engineer](https://jobs.opennash.com/companies/johnson-controls-international/jobs/5680b2667fe87c2fe6cd/) New Freedom-Pennsylvania-United States of America ### [Senior Electrical Engineer (onsite)](https://jobs.opennash.com/companies/johnson-controls-international/jobs/e90f6b35177847194874/) New Freedom-Pennsylvania-United States of America ### [Senior Product Engineer](https://jobs.opennash.com/companies/johnson-controls-international/jobs/64ebcb03af7d0703929e/) New Freedom-Pennsylvania-United States of America ### [Staff Applications Engineer](https://jobs.opennash.com/companies/johnson-controls-international/jobs/dc59eede05e1c97050d8/) New Freedom-Pennsylvania-United States of America ## Similar jobs at other companies ### [Staff Engineer, Thermal](https://jobs.opennash.com/companies/qualcomm/jobs/f0f50c5738692c1a8259/) Qualcomm · San Diego, California, United States of America ### [Thermal Limits Engineer, Senior Staff](https://jobs.opennash.com/companies/qualcomm/jobs/82aad85824d9e86cc5bc/) Qualcomm · San Diego, California, United States of America ### [Thermal Systems Lead Engineer - Electrical Loop](https://jobs.opennash.com/companies/trane-technologies/jobs/d7f459d8a521de4479e7/) Trane Technologies · Davidson, North Carolina, United States of America ### [Thermal Systems Lead Engineer - Sustainable Design](https://jobs.opennash.com/companies/trane-technologies/jobs/f0e05da4d4f3b0d3cc16/) Trane Technologies · Davidson, North Carolina, United States of America ### [Space Systems Sr Staff Systems Engineer](https://jobs.opennash.com/companies/northrop-grumman/jobs/79b5b77428e94f0c7ce2/) Northrop Grumman · United States-Maryland-Linthicum OpenNash lists jobs from employers’ own careers sites and does not handle applications. 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