Johnson Controls
Transforming the buildings where people live, work, learn and play to become smarter, healthier and more sustainable.
Senior Modeling Engineer
Location
Pennsylvania + 1 moreAll locations: Pennsylvania, Wisconsin
Posted
1 day ago
Salary
Not specified
Postgraduate Degree3 yrs expEnglishPythonVBA
Job Description
• Develop numerical simulations of thermal components commonly 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, technical findings, and strategic recommendations across departments.
• Deliver presentations and/or write white papers communicating JCI’s technical perspective on emerging technologies and system architectures.
• Actively participate in industry groups such as ASHRAE and the Open Compute Project.
Job Requirements
- Required Master’s or PhD in Mechanical Engineering or a related field.
- 3+ years of industry experience with thermal products or systems.
- Strong theoretical 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).
- Broad cross-domain knowledge spanning thermal, controls, and electrical systems.
- Proficiency with Microsoft 365/Excel, including basic macros/VBA for data analysis and reporting.
- Demonstrated ability to execute cross-functional projects.
- Preferred Python scripting and environment management (package installation, virtual environments, basic automation).
- Fundamentals of controls engineering (feedback loops, PID tuning, system response).
- Basic understanding of electrical systems (motor sizing, VFDs, power distribution).
- Experience with refrigeration system design and refrigerant properties.
- Familiarity with data center cooling architectures (direct liquid cooling, rear-door heat exchangers, CDUs).
- Expertise in one or more thermal domains (CDUs, chillers, dry coolers, cold‑plate systems).
Benefits
- Johnson Controls International plc. is an equal employment opportunity and affirmative action employer
- 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.
- If you are an individual with a disability and you require an accommodation during the application process, please visit here.