[Remote] Senior Modeling Engineer
Note: The job is a remote job and is open to candidates in USA. Johnson Controls is seeking a Senior Modeling Engineer for its Data Center Thermal Technology Solutions group. The role develops and applies numerical models to simulate end-to-end data center cooling system performance, provides design and application guidance, and evaluates emerging technologies for future product offerings.
Responsibilities
- 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
Skills
- 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—generalists with strong multidomain capability are highly valued
- Proficiency with Microsoft 365/Excel, including basic macros/VBA for data analysis and reporting
- Demonstrated ability to execute cross-functional projects
- 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
- This can also be a remote opportunity for the right candidate.
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