> Markdown version of [/jobs/ext/1657055-principal-thermal-systems-product-engineer-onsite](https://www.wearedevelopers.com/jobs/ext/1657055-principal-thermal-systems-product-engineer-onsite). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md).

---

# Principal Thermal Systems Product Engineer (onsite)

- **Company:** Johnson Controls
- **Location:** New Freedom, PA, United States
- **Experience:** Expert
- **Salary:** $110,000.0 - $140,000.0
- **Contract:** Permanent contract
- **Skills:** Computer-Aided Design, Abaqus, Computational Fluid Dynamics, SolidWorks (CAD), Data Centers, MATLAB, Mathcad, PID Controllers, Scripting, Virtual Environment, Creo, Ansys
- **Published:** July 9, 2026
- **Apply:** https://www.indeed.com/viewjob?jk=bafe362b6d60e2ce

## About the Role

* Bachelor of Science in Mechanical Engineering
 * 7+ years experience with released thermal products or systems
 * Expert in one or more thermal domains (CDU, chiller, dry cooler, cold plate systems)
 * Demonstrated track record of converting research or advanced development concepts into production-released products
 * Cross-domain knowledge across thermal, controls, electrical systems; proficiency across multiple domains valued over deep expertise in only one
 * Heat transfer analysis (conduction, convection, two-phase)
 * Thermodynamic cycle analysis
 * Fluid mechanics and hydraulic system design
 * Thermal system component sizing and selection
 * CAD proficiency (SolidWorks, Creo, or equivalent)
 * Engineering calculations and documentation (MathCAD, EES, or equivalent), * Master of Science or PE 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 controlsControls 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)

## Description

* Plan and execute complex thermal product development projects and product releases; own full thermal system designs from concept through production
 * Serve as the primary technical interface between research/advanced development teams and product design engineering, translating research findings into actionable product development plans
 * Integrate subsystems into complete thermal product solutions; coordinate across cooling loops, controls, and heat rejection with focus on producibility and system-level performance
 * Define specifications for complete thermal systems including multi-domain requirements (thermal, controls, electrical) and manufacturing constraints
 * Lead process improvement initiatives across thermal product development domains
 * Present status and strategy information across departments
 * Mentor engineers


## Related Videos

- [More efficient software for more efficient microchips](https://www.wearedevelopers.com/videos/1164-more-efficient-software-for-more-efficient-microchips)
- [Cloud Vendor Lock-In - Is it just a new version of the Database Abstraction Layers?](https://www.wearedevelopers.com/videos/1185-cloud-vendor-lock-in-is-it-just-a-new-version-of-the-database-abstraction-layers)
- [Successful talent development: A joint journey of executives and talents](https://www.wearedevelopers.com/videos/1002-successful-talent-development-a-joint-journey-of-executives-and-talents)
- [Colorful quantum randomness](https://www.wearedevelopers.com/videos/100257-colorful-quantum-randomness)
- [C# 13 Unleashed: Live Demos of my Top 10 Cutting-Edge Features!](https://www.wearedevelopers.com/videos/1225-c-13-unleashed-live-demos-of-my-top-10-cutting-edge-features)
- [Remote Driving on Plant Grounds with State-of-the-Art Cloud Technologies](https://www.wearedevelopers.com/videos/251-remote-driving-on-plant-grounds-with-state-of-the-art-cloud-technologies)

## Related Articles

- [The Ultimate Software Engineer Career Path Guide for 2023](https://www.wearedevelopers.com/magazine/146-the-ultimate-software-engineer-career-path-guide-for-2023)
- [A Guide to Green Tech and Green IT Careers](https://www.wearedevelopers.com/magazine/374-a-guide-to-green-tech-and-green-it-careers)
- [The 12 Best Jobs for Software Engineers](https://www.wearedevelopers.com/magazine/401-the-12-best-jobs-for-software-engineers)
- [The Most Popular IT Jobs on the Market](https://www.wearedevelopers.com/magazine/376-the-most-popular-it-jobs-on-the-market)
- [Is Software Engineering Hard?](https://www.wearedevelopers.com/magazine/448-is-software-engineering-hard)
- [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs)