Senior Modeling Engineer

🕒 March 10

🔔 Pennsylvania, Wisconsin – Remote

🔔 Pennsylvania – Remote 🧀 Wisconsin – Remote

⏰ Full Time

🟠 Senior

👷🏻‍♀️ Engineer

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Johnson Controls

WebsiteLinkedInAll Job Openings

10,000+ employees

Founded 1885

🏢 Enterprise

☁️ SaaS

🔐 Security

Enterprise • SaaS • Security

Johnson Controls is a global leader in creating smart building technologies, software, and services. With over 100,000 employees across 150 countries, the company offers the world's largest portfolio in HVAC equipment, building automation, and control systems. Their innovative solutions include industrial refrigeration, fire detection, and security systems, enhancing efficiency and sustainability. Johnson Controls is committed to helping customers achieve their sustainability goals with technologies like OpenBlue, which provides real-time data visibility and management systems for optimizing building performance. Their services span from digital solutions for energy management to advanced security and fire safety systems.

📋 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.

🎯 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.