Engineering Intern - Innovation

Build your best future with the Johnson Controls Team:  

As a global leader in smart, healthy and sustainable buildings, our mission is to reimagine the performance of buildings to serve people, places and the planet. As a member of the Johnson Controls Future Leaders Internship Program , you will learn to use your valuable skill set, knowledge, and passion to excel in a dynamic and competitive global environment. Our Internship Program is a unique opportunity to put classroom theory into practice while bolstering your resume and professional network. By joining a program that is rooted in community, connection, and memorable experiences, you will have an opportunity to transform your future. We are proud to share that our Intern Program has been recognized by Yello x WayUp as one of the Top 100 Internship Programs in the United States for 2025 .

What we offer: 

• Comprehensive benefits package including but not limited to; 401k, Medical, Dental and Vision care – Available day one  

• Unique opportunity to meaningfully contribute alongside experienced professionals early in your career 

• Encouraging and collaborative team environment 

What you will do:

Johnson Controls invites you to apply for a year-round internship opportunity within our Product Development team. This internship offers hands-on experience in embedded firmware development for HVAC field devices such as sensors, actuators, and controllers. You’ll collaborate with experienced engineers to support the design, development, and testing of embedded systems that drive building automation and environmental control.

How you will do it:

As an Embedded Firmware Engineering Intern focused on HVAC Field Devices, you will:

• Assist in developing and debugging embedded firmware for HVAC sensors, actuators, and control modules

• Write and maintain test scripts and validation tools for embedded systems

• Participate in engineering-level testing of HVAC field devices and embedded platforms

• Support documentation efforts for firmware architecture, test procedures, and engineering reports

• Collaborate with cross-functional teams including hardware, software, and systems engineering

• Contribute to continuous improvement initiatives in embedded development processes

• Perform other engineering-related tasks and projects as assigned

What we look for

Required Qualifications:

• Pursuing a degree in Electrical Engineering, Computer Engineering, Software Engineering, or related field

• Located in the greater Milwaukee area and available to work full time during the summer and at least 20 hours/week during the semester and full-time during breaks

• Strong programming skills in C/C++ for embedded systems

• Familiarity with microcontroller platforms (e.g., ARM Cortex-M, STM32)

• Understanding of embedded debugging tools (e.g., JTAG, SWD, oscilloscopes)

• Comfortable working with version control systems like Git

• Proficiency in Microsoft Office tools (Excel, PowerPoint, Word)

• Highly organized with strong communication skills

• U.S. citizen or legally authorized to work in the U.S.

• Self-motivated and adaptable to changing priorities

• This is a year-round internship with high expectations.

Preferred Qualifications:

• Exposure to HVAC systems and building automation technologies

• Experience with BACnet, Modbus, or other field communication protocols

• Familiarity with real-time operating systems (RTOS) and low-power embedded design

• Knowledge of scripting languages like Python for test automation

• Ideal candidate is a Freshman or Sophomore seeking long-term internship experience

HIRING HOURLY RANGE : $21.00 - $24.00 (Hourly rate to be determined by the education, experience, knowledge, skills, and abilities of the applicant, internal equity, location and alignment with market data.) This position includes a competitive benefits package. For details, please visit the About Us tab on the Johnson Controls Careers site at .