Principal Mechanical Engineer

Johnson Controls • New Freedom, PA

1d • $90,000 - $120,000 • Hybrid

About The Position

What you will do Johnson Controls is hiring! The Mechanical Engineering Simulation and Modeling Engineer performs conventional and less complex mechanical engineering assignments involving the design and development of the organization’s core thermodynamic system products. This role focuses on the development, validation, and deployment of computer‑based models for chillers, heat pumps, and their components. The engineer will also plan and interpret laboratory test results to validate and tune simulation models. This position is based in New Freedom, PA, and candidates are expected to be onsite 3 days per week. Various relocation packages are available. How you will do it Develop, validate, and deploy computer models to simulate the performance of thermodynamic systems. Model chillers, heat pumps, and component‑level systems including compressors, heat exchangers, pumps, valves, motors, and VFDs. Build and refine simulation models for chiller systems. Plan physical tests and interpret experimental results from engineering laboratory environments. Use laboratory data to validate, calibrate, and tune simulation models.

Requirements

• Bachelor’s degree (or foreign equivalent) in Mechanical Engineering, Chemical Engineering, or a related engineering field.
• Minimum 2 years of professional work experience focused on simulation of thermodynamic systems.
• Suggested minimum of 3 years of relevant experience for Engineering II level.
• Strong understanding of fluid dynamics and heat transfer.
• 5+ years of experience with applied thermal system modeling in a professional environment.
• Experience analyzing experimental test results in a laboratory environment.
• Experience validating computer models using laboratory data.
• Proficiency with FORTRAN and C#.

Responsibilities

• Develop, validate, and deploy computer models to simulate the performance of thermodynamic systems.
• Model chillers, heat pumps, and component‑level systems including compressors, heat exchangers, pumps, valves, motors, and VFDs.
• Build and refine simulation models for chiller systems.
• Plan physical tests and interpret experimental results from engineering laboratory environments.
• Use laboratory data to validate, calibrate, and tune simulation models.

What This Job Offers

• Job Type: Full-time
• Career Level: Principal