Embedded Firmware Engineer

Re:Build Manufacturing•Wilmington, MA

About The Position

Re:Build Fikst is a product development and engineering consulting firm in Wilmington, Massachusetts, specializing in biomedical instruments and consumables, industrial automation, and design for manufacturing. Its growing embedded systems team develops microcontroller and embedded firmware solutions for electromechanical control across a range of technologies and industries. The team works with clients to develop technology, design products, and bring them into production, drawing on in-house laboratory and rapid-prototyping capabilities and collaboration across Re:Build Manufacturing. The Embedded Firmware Engineer owns firmware modules and develops bare-metal or RTOS-based solutions, including with FreeRTOS or Zephyr, from concept through production. The role collaborates with internal hardware engineers and clients to implement, test, and debug embedded software that controls actuators, reads sensors, and manages system states. It is a hands-on position that uses physical hardware, logic analyzers, and custom test setups to validate firmware and debug firmware-hardware interactions. The role calls for a creative, communicative, collaborative, and results-oriented engineer who takes ownership, works effectively with multidisciplinary teams, and contributes to a culture of continuous learning and mentoring. The base salary range is $112,012.60–$168,018.91 per year. The position may also be eligible for annual incentive compensation and/or long-term incentives. The company offers medical, dental, and vision coverage, retirement benefits, paid time off, and other benefits.

Requirements

Bachelor of Science in Computer Science, Electrical Engineering, Robotics, or a related discipline.
5 to 10 years of industry experience.
Broad technical background with a proven track record implementing bare-metal and RTOS-based embedded firmware.
Experience with firmware control of physical mechanisms, including actuators, motors, and sensors.
Experience with hardware debugging.
Proficiency in C/C++ and common communication protocols.

Nice To Haves

Experience in regulated industries, such as medical devices.

Responsibilities

Own firmware modules and drive bare-metal or RTOS solutions, including FreeRTOS or Zephyr, from concept to production.
Collaborate with internal hardware engineers and clients as part of the embedded systems team.
Write, test, and debug embedded software to control actuators, read sensors, and manage system states.
Validate firmware on physical hardware using logic analyzers and custom test setups.
Work proactively with multidisciplinary teams and communicate the value of solutions to clients.
Contribute to a continuous teaching and learning culture, including growing into a mentor for junior team members.