Embedded Firmware Engineer

Firmware Engineer / Embedded Software Engineer (Next‑Generation IoT Wearable Devices)

Location: Cambridge (Hybrid 1 day in the office a week) Salary: £60,000 – £70,000 + Excellent Benefits Contact: Adam Mayne – (url removed) – (phone number removed)

Embedded Software Engineer Opportunity

An exciting opportunity has arisen for an experienced Firmware / 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