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 https://jobs.johnsoncontrols.com/about-us.
Johnson Controls International plc. is an equal employment opportunity and affirmative action employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, age, protected veteran status, genetic information, sexual orientation, gender identity, status as a qualified individual with a disability or any other characteristic protected by law. To view more information about your equal opportunity and non-discrimination rights as a candidate, visit EEO is the Law. If you are an individual with a disability and you require an accommodation during the application process, please visit here.
What We Do
At Johnson Controls, we transform the environments where people live, work, learn and play. From optimizing building performance to improving safety and enhancing comfort, we drive the outcomes that matter most. Dedicated to protecting the environment, we deliver our promise in industries such as healthcare, education, data centers and manufacturing. With a global team of 100,000 experts in more than 150 countries and over 130 years of innovation, we are the power behind our customers’ mission. Our leading portfolio of building technology and solutions includes some of the most trusted names in the industry, such as Tyco®, York®, Metasys®, Ruskin®, Titus®, Frick®, Penn®, Sabroe®, Simplex®, Ansul® and Grinnell®.
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