HVAC Engineering Intern - Summer 2026

As part of the Envelop Group community of companies, Quality Air Service (QAS) delivers quality driven, custom solutions, while focusing on partnerships to promote environmental balance, cost effectiveness, efficiency and superior customer satisfaction.  Differing from traditional solutions, QAS offers customized field level system architecture, allowing for more accurate, time sensitive data analysis. 

As a Mechanical Design Engineering Intern, you'll work alongside our design and sales engineers to learn how technical solutions in the HVAC industry come together from the first customer inquiry through delivery. You'll gain exposure to equipment selection, pricing, proposals, and the project handoff process while developing technical and professional skills. This internship is designed for students interested in HVAC, mechanical systems, or building automation in critical environments.

This paid internship is located in Kalamazoo, MI with flexible start and end dates from May to August 2026. Interns must be available to work up to 40 hours per week, for at least 10 weeks.

What You'll Gain

• Practical experience in HVAC system design and equipment selection.


• Exposure to technical sales support processes.


• Skills in proposal development, project tracking, and documentation.


• Mentorship from experienced engineers and sales professionals.


• A strong foundation for a future career in HVAC engineering or technical sales.

What We're Looking For:

• Current student pursuing a degree in mechanical engineering, HVAC technology or related technical field.


• Interest in HVAC, building automation, or controls systems.


• Basic technical skills, including familiarity with mechanical systems or electrical wiring.


• Preference will be given to local candidates; no relocation or housing stipend is available this position.


• Possess US work authorization and do not require sponsorship for an employment visa by Envelop Group at any time in the future.


• Willingness to travel to customer job sites, which may involve outdoor work and environments such as mechanical or equipment rooms. Site visits may expose the employee to varying weather conditions, moving machinery, heights, and other environmental factors.

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