Embedded Firmware Engineer - BLE, GATT, C, RTOS, hardware, software

InnoTECH Staffing is looking to hire a fulltime permanent Embedded Firmware Engineer in Boston, MA.

This requires working onsite 5 days a week.

Must be a US Citizen or GreenCard holder.

There is no relocation assistance at this time.

JOB SUMMARY

We are looking for an exceptional Embedded Firmware Software Engineer. The successful applicant will play a key role in developing and enhancing the firmware for the implantable and wearable devices, including the Bluetooth Low Energy (BLE) interface with a patient-facing mobile application.

WHAT YOU WILL DO

· Develop embedded firmware in C to support BLE communication between an implantable device and mobile apps

· Design and implement custom GATT services and characteristics to enable secure, low-latency data exchange

· Support real-time signal processing, sensor interfaces, and closed-loop control logic

· Contribute to the design of system-level communication protocols across implant, wearable, and cloud platforms

· Help build automated test systems for wireless and embedded functionality

REQUIRED QUALIFICATIONS

· BS in Electrical Engineering or Computer Science

· Strong programming skills in C for embedded systems

· 4-5 years professional or project experience working on embedded systems

· Hands-on experience developing and debugging BLE firmware, including custom profiles and characteristics

· Understanding of BLE stack behavior (advertising, connection parameters, bonding, encryption)

· Comfortable working with microcontroller toolchains, oscilloscopes, and logic analyzers

· Ability to read datasheets and electrical schematics and develop device drivers

· Strong troubleshooting, communication, and cross-functional collaboration skills

PREFERRED SKILLS

· Experience with ST or Nordic microcontrollers

· RTOS based firmware development (e.g. FreeRTOS, Zephyr)

· Hands-on experience developing and debugging Bluetooth Low Energy (BLE) communication protocols, including creating custom GATT services and characteristics

· Experience integrating mobile applications with embedded firmware, ensuring robust and reliable data exchange

· Experience developing active implantable medical devices, medical device quality systems, standards (e.g. ISO-14708) and risk management activities (e.g. FMEA)

· Proficiency in cross-platform (Android, iOS) mobile application development

· Broad circuit design experience including analog, digital, power supply and comms functions

· Setting up and maintaining testing environments for hardware and software systems