Firmware Engineer / Embedded Software Engineer (Next‑Generation IoT Wearable Devices)
Location: Cambridge (Hybrid - 2 days a week in the office) Salary: £60,000 – £70,000 + Excellent Benefits Contact: Adam Mayne – – 01234 823373
Embedded Software Engineer Opportunity
An exciting opportunity has arisen for an experienced Firmware Engineer / Embedded Software Engineer to join a rapidly growing technology company developing next‑generation IoT, Bluetooth‑enabled, low‑power wearable devices.
You’ll be part of a talented, supportive R&D team working on real products with real users, contributing to both current‑generation firmware and new product development from concept through to mass production.
This is an environment known for innovation, employee development, and a genuinely collaborative culture, offering excellent training, career growth and the chance to work with cutting‑edge embedded technologies.
Responsibilities of Firmware Engineer
* Designing and developing embedded firmware for IoT wearable products
* Working across the full product lifecycle - prototyping, implementation, optimisation, validation and release
* Creating efficient, reliable firmware for battery‑powered, resource‑constrained devices
* Developing and maintaining low‑level drivers, communication interfaces and wireless protocol stacks
* Collaboration with hardware, electronics and software teams to deliver high‑quality, production‑ready systems
What we are looking for, as much as possible from below.
Education & Core Skills
* Degree/Masters/PhD in Computer Science, Electronics, Embedded Systems or similar
* Strong commercial experience in embedded C development (ideally 5+ years)
* Experience with RTOS environments such as FreeRTOS, Zephyr, ThreadX or similar
* Confident working in Unix/Linux development environments
* Strong grounding in software testing (unit, regression, system)
Embedded & Firmware Expertise
* Experience writing device drivers directly from datasheets
* Knowledge of low‑power design techniques and firmware optimisation for constrained MCUs
* Experience working with BLE/Bluetooth, WiFi, Cellular or other wireless protocols
* Experience with battery-powered, low-energy devices is highly beneficial
* Familiarity with Git, Jira, Bitbucket, or similar tooling
Nice to Have
* Prior experience with wearable technologies
* Cellular expertise (e.g., LTE‑M, NB‑IoT)
* Exposure to embedded Linux environments