About the Role 

The Calculation Engine Developer will develop, coordinate and conduct complex tests and debugs control and diagnostic systems, makes recommendations on changes in the selection and application of software production components to management, implements major components, presents designs review, and coordinates with other organizations.

Carrier is seeking a passionate and experienced Calculation Engine Developer to join our Modeling and Simulation team. This role is critical to the development and deployment of best‑in‑class calculation platforms that support Carrier’s commercial HVAC equipment portfolio. 

In this position, you will apply advanced thermodynamics, heat transfer, and numerical methods to the development of robust, scalable calculation engines that enable optimized product selection and superior customer solutions. You will collaborate closely with marketing, product engineering, and global stakeholders to translate customer and business needs into high‑performance engineering models. 

Key Responsibilities 

As a Calculation Engine Developer, you'll be responsible for:   

• Design, develop, and maintain state‑of‑the‑art calculation engines that support Carrier’s commercial HVAC product offerings and sales tools. 

• Apply expertise in heat transfer, thermodynamics, and numerical methods to develop accurate and reliable engineering algorithms. 

• Collaborate with optimization engineers to develop advanced algorithms that enable optimal system selection and performance predictions. 

• Work cross‑functionally with marketing, product engineering, and global teams to understand customer requirements and translate them into technical solutions. 

• Support the integration and deployment of calculation engines into Carrier’s modeling and configuration platforms. 

• Ensure model accuracy, robustness, scalability, and maintainability through validation, testing, and continuous improvement. 

• Drive resolution of complex technical challenges related to numerical stability, convergence, model accuracy, and computational performance  

• Define and enforce best practices for calculation engine development, including numerical methods, data structures, and integration patterns 

Requirements: 

We are looking for people who are with deep knowledge and highly developed technical expertise. If this is you, get in touch. 

As a minimum you must have:

• Master’s degree or PhD in Thermal Engineering, Refrigeration and Air‑Conditioning, Fluid Machinery, or a related engineering discipline. 

• Minimum of 2+ years of relevant engineering experience with a Master’s degree (or equivalent experience with a PhD). 

• Strong foundational knowledge of:  

• Heat transfer 

• Thermodynamics 

• Numerical analysis 

• Nonlinear algebraic and differential equation systems 

• Hands‑on programming experience in one or more of the following: 
  Python, Modelica, C++ or related programming languages. 

• Engineering experience in design, analysis, or application of HVAC/R or power plant equipment. 

• Strong verbal and written communication skills. 

• Proven ability to collaborate effectively across functions and global teams. 

• Ability to work independently while thriving in a collaborative team environment. 

Although not necessary, it would be nice if you have:

• Experience developing and maintaining software across multiple programming languages. 

• Experience leading or mentoring technical teams or delivering engineering tools/models to meet stakeholder requirements. 

• Familiarity with optimization techniques, simulation platforms, or product configuration systems. 

Benefits 

We offer a competitive total rewards package that may include other benefits and well‑being programs. Offerings vary by role and location and are designed to support employees’ health, security, and success.  

If you require a reasonable accommodation to complete the application process, participate in an interview, or otherwise engage in the hiring process, please contact us at [email protected]. We will make every effort to meet your needs in accordance with applicable laws.  

Carrier is An Equal Opportunity/Affirmative Action Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or veteran status, age or any other federally protected class.

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