Engineering Summer Intern

Join the world's largest HVAC company, named by Forbes as one of America's Best-In-State Employers 2025!

Responsibilities:

• Work directly with our industry-leading Senior Sales team, customers, and manufacturing partners

• Gain exposure to design, application and sale of systems, controls, parts, and services for commercial, industrial, institutional buildings and more

• Attend sales meetings; business functions; sales and service calls; customer meetings alongside our account managers and sales staff

• Understand the steps sales engineers take throughout the project process on the job and be hands-on in those steps

• Gain an understanding for the importance of relationship building with customers as you work with them as a daily point-of-contact creating a sense of ownership and importance in the solution-making process

• All other duties assigned

Why Thermosystems?

• Real-World Experience: Gain hands-on exposure to the HVAC industry and technical sales while working alongside experienced professional

• Career Development: Opportunity to explore a variety of roles within a manufacturer’s representative firm, with guidance and mentorship from industry expert

• Training & Growth: Thermosystems invests in the professional development of our team, providing training and resources to help you succeed in both your internship and future career

Qualifications + Knowledge Skills & Abilities:

• Actively enrolled in a bachelor’s or master’s degree in Engineering (Mechanical Engineering, HVAC Engineering, Industrial Engineering, or a related field) throughout the duration of the summer internship

• Must have completed at least sophomore year before the start of the summer internship to be eligible

• Minimum GPA of 3.0 or higher

• Strong communication skills and ability to collaborate effectively across teams

• A proactive and positive attitude, with a passion for continuous learning in technical fields, ensuring a solid foundation for understanding and communicating engineering solutions

Personal/Character:  Thermosystemsis looking for individuals who are honest, hardworking, driven, meticulous with a growth mindset.

Work Environment:  Thermosystems LLC main office is in Elmhurst, IL.  Main warehouse is in Romeoville, IL.  Shared workspace is in Chicago, IL.  Field work with exposure to various working conditions, including mechanical rooms, rooftops, and outdoor settings with regular use of personal protective equipment (PPE) and adherence to safety protocols in commercial buildings within Chicagoland (k-12 Schools, Medical Office Buildings/Hospitals, Institutional, etc.).