Software Engineer - HVAC Systems

Job Description About XeteXAt XeteX, our mission, vision, and values drive our company purpose: “Helping Buildings Breathe Better.” By designing and manufacturing high-performing energy recovery ventilation and air handling solutions for industrial and commercial buildings, XeteX produces a better world for all of us.XeteX was founded in 1984. In recent years, our Company has experienced unprecedented growth and has been recognized as an eight-time Inc. 5000 Honoree ranking as one of the fastest-growing private companies in America. Our headquarters are located in Coon Rapids, MN and our production facilities are based in Holmen, WI.Xetex is teaming with innovation, expertise, and outstanding people. That is why we value our people as our greatest asset! Our employees lead through integrity, apply creativity and talent, invent innovative solutions to meet new demands, and offer effective services/products to be leaders in the industry. By adding your creativity, innovations, and contributions, you take pride in being a valued member of our growth and success.Software Engineer – HVAC SystemsThe Software Engineer has a strong mechanical aptitude and HVAC knowledge to support the development and enhancement of engineering selection and performance software tools. This role bridges software development and mechanical engineering by translating HVAC concepts such as airflow, heat transfer, psychrometrics, and system performance into accurate, scalable, and user-friendly applications. The ideal candidate will collaborate closely with engineering, product management, and application teams to develop tools that support equipment selection, product configuration, and system design.Job Duties:Software Development & Engineering LogicTranslate mechanical engineering concepts including thermodynamics, heat transfer, fluid dynamics, and airflow into executable software logicCollaborate with internal engineering teams and external software contractors to develop, revise, test, and maintain performance and sales selection toolsWrite clean, modular, and maintainable code following software development best practices and lifecycle standardsParticipate in system testing, debugging, validation, and software performance optimizationMaintain version control and contribute to software documentation and process improvementsHVAC & Mechanical Systems IntegrationConvert HVAC engineering principles such as psychrometrics, static pressure, fan performance, and coil calculations into reliable software calculationsInterpret engineering specifications, submittals, and product performance data to support application developmentValidate engineering calculations related to:Handling Unit (AHU) selectionCoil performanceFan curves and system pressureSupport software updates related to new product lines, engineering changes, and feature enhancementsCross-Functional CollaborationWork closely with:Mechanical EngineersProduct ManagersSales and Application EngineersGather and refine software requirements for new tools and feature enhancementsParticipate in product development discussions and design reviewsProvide technical support and user training for engineering selection softwareTesting & ValidationDevelop and execute unit tests and validation routines for engineering calculationsCross-check software outputs against manual engineering calculations and performance dataSupport quality assurance efforts and ensure compliance with internal standardsContinuous ImprovementIdentify opportunities to automate manual engineering workflows and improve usabilityEnhance software scalability, performance, and maintainabilityStay current with emerging software frameworks, technologies, and development best practicesContribute to technical documentation, knowledge sharing, and continuous improvement initiativesPreferred / Nice-to-Have ExperienceExperience developing web-based or cloud-hosted engineering applicationsFamiliarity with data visualization tools for fan curves, psychrometric charts, or performance plottingExperience integrating with BIM platforms such as RevitKnowledge of API development and external system integrationsQualifications:Bachelor of Science in Computer Science, Software Engineering, Mechanical Engineering, or related technical field requiredApproximately 5 years of software development experienceStrong mechanical aptitude and interest in HVAC systems requiredExperience with:C#.NET Framework / .NET CoreHTMLJavaScriptUnderstanding of HVAC systems, thermodynamics, airflow, or related mechanical principles preferredStrong analytical, troubleshooting, and problem-solving skillsAbility to work cross-functionally with engineering and technical teamsExcellent communication and organizational skillsOur PurposeThrough our purpose of “Helping Buildings Breathe Better,” XeteX unlocks the full potential of building environments through our innovative custom air handling solutions. We are dedicated to designing and manufacturing high-performance, sustainable systems that optimize building air quality, increase energy efficiency, elevate occupant comfort, and enhance operations.Our VisionOur vision is to be the premier HVAC air handling company, setting the standard for excellence in the industry. XeteX strives to provide exceptional solutions that create commercial and industrial building environments exceeding customer expectations in comfort and performance. Through continuous innovation, advanced technology, and a commitment to sustainability, our products contribute to a greener planet.Our MissionWith a relentless focus on innovation and quality, XeteX exists to breathe life into commercial and industrial facilities to reach their highest capabilities.XeteX is directed by a simple idea: “Always do the right thing,” that represents our five Core Values:Integrity - Being honest, transparent, and ethical.Customer Focus - Prioritizing Customer needs in all we do.Excellence - Surpassing expectations in every aspect of our work.Collaboration - Embracing our collective strength which is the sum of our individual efforts.Autonomy - Empowering our people to make a difference.Equal Opportunity Employer: XeteX is an equal opportunity employer. We provide equal employment opportunities to all employees and applicants without regard to race, color, religion, sex, sexual orientation, national origin, disability, genetic information, pregnancy, or any other protected characteristic as outlined by federal, state, or local laws.Additional Titles: Software Engineer – HVAC Systems | HVAC Software Engineer | Mechanical Software Engineer | HVAC Application Software Engineer | Engineering Software Developer | HVAC Systems Developer | C# Software Engineer – HVAC | .NET Software Engineer | Software Developer – Mechanical Systems | HVAC Product Software Engineer | Engineering Applications Developer | Building Systems Software Engineer | HVAC Design Software Engineer | HVAC Selection Software Engineer | Controls Software Engineer – HVAC | Full Stack Software Engineer – HVAC | HVAC Engineering Systems Developer | Mechanical Systems Application Engineer | HVAC Performance Software Engineer | Engineering Tools Developer | Software Engineer – Thermodynamics & Airflow | Software Engineer – Fluid Dynamics Applications | HVAC Modeling Software Engineer | Software Engineer – Psychrometrics | Mechanical Applications Developer | Software Engineer – Equipment Selection Tools | HVAC Configuration Software Engineer | Revit Integration Software Engineer | Cloud-Based Engineering Software Developer | Web Application Developer – HVAC | Technical Software Engineer | Engineering Platform Developer | Applied Engineering Software Developer | Systems Performance Software Engineer | Mechanical Product Software Developer | Software Engineer – Building Automation Systems | Engineering Calculation Software Developer | HVAC Technology Software Engineer | Fan & Coil Selection Software Engineer | Product Development Software Engineer | Mechanical Systems Programmer | Engineering Data Visualization Developer | AHU Software Engineer | Software Engineer – Mechanical Design Tools | Industrial Software Engineer | Software Engineer – Energy Systems | Software Engineer – HVAC Product Applications | Application Engineer – Software & HVAC | Software Engineer – Engineering Calculations | Computational Engineering Software DeveloperKeywords for SEO: HVAC software engineer, HVAC software developer, mechanical software engineer, engineering software developer, HVAC systems software, C# developer, .NET developer, .NET Core developer, HTML developer, JavaScript developer, engineering applications developer, HVAC engineering software, mechanical systems software, airflow calculations, thermodynamics software, psychrometrics, heat transfer calculations, fluid dynamics software, AHU selection software, fan curve analysis, coil performance calculations, HVAC product configuration, HVAC performance tools, engineering selection software, equipment selection software, building systems software, HVAC application engineer, Revit integration, BIM software integration, API development, cloud-hosted engineering applications, web-based engineering tools, software validation, engineering calculations, data visualization tools, software lifecycle management, modular code development, software testing and debugging, performance optimization, technical software support, engineering process automation, industrial software development, HVAC product development, mechanical engineering software, energy systems software, cross-functional engineering, application engineering, engineering analytics, software scalability, engineering data analysis, building automation software, engineering workflow automation, engineering documentation, quality assurance testing, HVAC controls software, engineering platform development, software engineer jobs, HVAC engineering careers, mechanical engineering software jobs, C# HVAC developer, engineering technology jobs, software engineer HVAC jobs