Summer Intern - Firmware Engineer

Creating Peace of Mind by Pioneering Safety and Security At Allegion, we help keep the people you know and love safe and secure where they live, work and visit. With more than 40 brands, 14,000+ employees globally and products sold in 130 countries, we specialize in security around the doorway and beyond. Additionally, Allegion is proud to be recognized with the 2026 Gallup Exceptional Workplace Award (GEWA) for the third consecutive year, earning distinction in both the employee engagement and strengths categories.

This year, Allegion also received Gallup’s With Distinction honor — a designation reserved for a select group of organizations that go above and beyond in building exceptional workplace cultures. Summer Intern – Firmware Engineer, Allegion Access Technologies – Farmington, Connecticut As an Allegion Firmware Engineer intern, you will contribute meaningful work and make a direct impact to the Firmware/Embedded Software competency.

You will gain hands-on experience defining and implementing firmware features for access control and automatic door systems, support product validation, and collaborate closely with hardware, test, and manufacturing teams. If you are seeking a summer experience that offers meaningful work, learning opportunities, professional development, and an opportunity to build strong relationships with your peers and leaders, Allegion is the right place for you!

What You Will Do: Develop, debug, and test embedded firmware for microcontroller-based products. Participate in requirements definition and design discussions for new firmware features and product updates. Implement and maintain device drivers, communication stacks (UART, SPI, I2C, CAN, Ethernet, BLE as applicable), and peripheral interfacing. Work with real-time operating systems (RTOS) and bare-metal architectures as required by product designs.

Support hardware bring-up and verification by using tools such as debuggers (JTAG/SWD), logic analyzers, and oscilloscopes. Design tools to measure and analyze existing and new products. Participate in code reviews, version control workflows, and continuous integration/build processes. Document firmware design, test procedures, release notes, and standard operating procedures. Utilize tools such as functional block diagrams, flow diagrams, state-diagrams, and others as required in product development.

Work with a team to create well-rounded solutions. Deepen your understanding of basic electronics and the use of electrical tools, such as a digital multi-meter, oscilloscope, and digital logic analyzers. Obtain the experience to create a foundation for growth and future opportunities with Allegion What You Need to Succeed: Pursuing a degree in a relevant discipline, e.g., Computer Science, Computer Engineering, Electrical Engineering, Computer Engineering Technology, and Electrical Engineering Technology.

Demonstrated leadership ability and initiative, e.g., school club officer, sports team captain, resident advisor, leadership on school or work projects, etc. Preferred knowledge of C programming language. Preferred knowledge of working with embedded microprocessors and their associated IDE and tools. Basic electronics understanding, including low voltage wiring. Passion to be hands-on and able to work in an engineering laboratory environment.

Ability to work in both a team and individual setting. Resiliency and ability to adapt quickly. Effective listening, time management and creative problem-solving techniques. A desire to learn, grow and develop by working on projects that will impact Allegion’s business and customers. Why Work for Us? Allegion is a Great Place to Grow your Career if:   You're seeking a rewarding opportunity that allows you to truly help others.

With thousands of employees and customers around the world, there’s plenty of room to make an impact. As our values state, “this is your business, run with it”. You’re looking for a company that will invest in your professional