Firmware Engineer

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

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

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.

What we are looking for, as much as possible from below.

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

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
• Exposure to embedded Linux environments

For more about this opportunity please contact Adam Mayne ( )