Join the world's largest HVAC company, named by Forbes as one of America's Best-In-State Employers 2025! Position Overview As a sales engineer at Thermosystems, your primary responsibility will be putting together HVAC equipment selections, cost estimates, and submittals. You’ll work on a fast-paced applied sales team assisting engineers and contractors in the design and execution of HVAC projects for new facilities, additions, and renovation projects.