Linux Firmware Engineer

Johnson Controls•Westford, MA

5d•Onsite

About The Position

The Embedded Linux Firmware Engineer joins the Software House engineering team to develop physical access control products, including intelligent readers, controllers, and I/O modules used to secure commercial buildings and critical infrastructure. The role contributes to the design, development, testing, and maintenance of embedded firmware on Linux- and Zephyr-based platforms, working with firmware, hardware, software, and quality engineers. The position is onsite in Westford, Massachusetts. The engineer develops firmware for access control panels, readers, and I/O devices; supports hardware integration and board bring-up; maintains Linux platform components; and investigates issues across hardware and software. The role also supports product enhancements, sustaining engineering, and field issue investigations throughout the product development lifecycle.

Requirements

Must be a US citizen and/or permanent resident of the US.
Bachelor's degree in Computer Science, Computer Engineering, Software Engineering, or a related technical field.
1–3 years of professional experience in embedded software or firmware development.
Experience developing software in C/C++.
Experience working with Embedded Linux systems.
Familiarity with Linux kernel, device drivers, Buildroot, U-Boot, or related embedded Linux technologies.
Strong problem-solving, debugging, and communication skills.

Nice To Haves

Experience with Zephyr or other real-time operating systems (RTOS).
Experience with board bring-up, hardware diagnostics, and embedded debugging.
Familiarity with ARM- or NXP-based embedded platforms.
Experience using JTAG debuggers, oscilloscopes, or logic analyzers.
Exposure to Bluetooth, cybersecurity technologies, or connected devices.
Experience working in an Agile development environment.

Responsibilities

Design, develop, test, and maintain embedded firmware for access control panels, readers, and I/O devices.
Develop software in C/C++ for Embedded Linux and Zephyr RTOS platforms.
Support hardware integration, board bring-up activities, and system diagnostics.
Modify and maintain Linux platform components, including Buildroot, U-Boot, kernel drivers, and device trees.
Debug hardware and software issues using tools such as JTAG debuggers, oscilloscopes, and logic analyzers.
Collaborate with cross-functional engineering teams throughout the product development lifecycle.
Support product enhancements, sustaining engineering efforts, and field issue investigations.