Senior Modeling Engineer

Johnson Controls

. Develop numerical simulations of thermal components commonly used in data center applications .

Posted 11/2/2026full-timeUnited StatesSenior💰 $120,000 - $170,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in thermal system design and numerical simulations, with a strong foundation in thermodynamics, heat transfer, and fluid mechanics. Proficient in integrating subsystems for comprehensive data center cooling solutions and effectively communicating technical findings and recommendations.

Highest-signal resume keywords

Thermal System DesignNumerical Simulation ToolsHVAC System DesignCross-Functional Project ExecutionData Center Cooling Architectures

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

ThermodynamicsHeat TransferFluid MechanicsHVAC System DesignNumerical SimulationPython ScriptingControls EngineeringRefrigeration System DesignElectrical Systems UnderstandingThermal Domain Expertise

Soft Skills

Technical CommunicationPresentation SkillsCollaboration

Tools & Technologies

ModelicaMATLAB/SimulinkEESEnergyPlus

Industry Keywords

Data Center ApplicationsCooling LoopsHeat-Rejection EquipmentASHRAEOpen Compute Project

Tech Stack

Tools & technologies

Python

About the role

Key responsibilities & impact

Develop numerical simulations of thermal components commonly used in data center applications
Integrate subsystems into complete thermal solutions 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 Johnson Controls’ technical perspective on emerging technologies and system architectures
Stay current on emerging technologies in the data center cooling space and evaluate innovations for future product offerings
Participate in cross-functional teams creating comprehensive thermal solutions for data center applications
Actively participate in industry groups such as ASHRAE and the Open Compute Project

Requirements

What you’ll need

Master’s or PhD in Mechanical Engineering or a related field
10+ 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, such as Modelica, MATLAB/Simulink, EES, and EnergyPlus
Demonstrated ability to execute cross-functional projects
Preferred: Python scripting and environment management, including package installation, virtual environments, and basic automation
Preferred: Fundamentals of controls engineering, including feedback loops, PID tuning, and system response
Preferred: Basic understanding of electrical systems, including motor sizing, VFDs, and power distribution
Preferred: Experience with refrigeration system design and refrigerant properties
Preferred: Familiarity with data center cooling architectures, including direct liquid cooling, rear-door heat exchangers, and CDUs
Preferred: Expertise in one or more thermal domains, including CDUs, chillers, dry coolers, and cold-plate systems
Preferred: Broad cross-domain knowledge spanning thermal, controls, and electrical systems
Ability to work on-site at least three days per week for the Glendale, WI-based position, or work from New Freedom, PA, Boston, MA, or remotely if selected for those arrangements

Benefits

Comp & perks

Competitive bonus plan based on individual, group, and corporate performance
Competitive benefits package
Various relocation packages are available