HVAC Controls Sales Engineer Intern: Build Smart Buildings

Johnson Controls; St. Louis (MO); On-site; USD 26,000 - 30,000; Full time

Job summary

Johnson Controls seeks engineering students for an HVAC Controls Sales Engineer Internship in St. Louis, MO. The role blends engineering and business, offering hands-on experience with HVAC controls, BAS, energy technologies, and technical sales.

Interns will learn to apply engineering principles, perform technical evaluations, and communicate complex concepts to diverse audiences through field exposure, mentorship, and real-world projects.

Qualifications

• Pursuing a Bachelor's degree in Mechanical, Electrical, or related engineering discipline.
• U.S. citizen or legal right to work in the U.S.
• Available to work full-time (40 hours/week) throughout the summer.
• Interested in combining engineering expertise with customer engagement, business development, and consultative sales.
• Strong analytical, communication, and presentation skills.
• Comfortable interacting with customers, contractors, engineers, and cross-functional teams.
• Interested in smart buildings, building automation systems, and HVAC technologies.

Responsibilities

• Support Sales Engineers in the design and development of HVAC controls and building automation solutions that address customer operational, sustainability, and energy‑efficiency goals.
• Participate in customer meetings, site surveys, and technical discussions to gather building requirements and understand mechanical, electrical, and control system applications.
• Contribute to the preparation of technical proposals, presentations, scope documentation, and solution recommendations for customers, contractors, and consulting engineers.
• Shadow Sales Engineers throughout the sales lifecycle, including opportunity identification, customer discovery, solution development, proposal generation, and project turnover.
• Collaborate with Operations and Project Teams to gain an understanding of system installation, commissioning, startup activities, and project execution processes.
• Work alongside Service Operations teams to understand system maintenance, troubleshooting methodologies, lifecycle service strategies, and long‑term customer support.
• Participate in project walkthroughs and construction site visits to observe HVAC controls installations and understand the integration of mechanical equipment, sensors, actuators, and control networks.
• Utilize Salesforce, estimating, and engineering support tools to track opportunities, maintain project documentation, and support sales forecasting activities.
• Develop the ability to translate complex engineering concepts into clear business value propositions for customers, building owners, contractors, and consulting engineers.

Skills

Analytical

Communication

Presentation

Education

Bachelor's degree in Mechanical Engineering

Bachelor's degree in Electrical Engineering

Bachelor's degree in Engineering Management

Tools

Salesforce

Job description

Johnson Controls seeks engineering students for an HVAC Controls Sales Engineer Internship in St. Louis, MO. The role blends engineering and business, offering hands-on experience with HVAC controls, BAS, energy technologies, and technical sales.

Interns will learn to apply engineering principles, perform technical evaluations, and communicate complex concepts to diverse audiences through field exposure, mentorship, and real-world projects.