What Drives Success Innovate your career. When you choose Lennox, you're getting the best. When you work at Lennox, you're among the best. As a leading innovator of home and commercial, heating, cooling, refrigeration, air-quality, and related services, Lennox is committed to helping our people innovate our products and their careers. This CAD designer will have the opportunity to Design HVAC components, create drawings and build assemblies that are manufacturable to Lennox factory standard