Senior Embedded Firmware Engineer – Low-Power IoT (STM32)

Orion Group; Cambridge; Hybrid; GBP 65,000 - 90,000; Full time

Job summary

Orion Group is recruiting a Senior Embedded Firmware Engineer for a multinational biopharmaceutical client in Cambourne, UK. The role is hybrid and an initial 2-year contract with potential extension.

You will design and deliver production-ready firmware for low-power IoT devices, collaborating across UK, Israel and the United States. You will work on GNSS, LoRa/LoRaWAN, sensors and peripherals, with strong emphasis on power management, debugging and integration with hardware teams.

Qualifications

• Approximately 5 years of embedded software engineering experience with C/C++.
• Hands-on experience with STM32 microcontrollers and embedded debugging.
• Proven experience delivering low-power firmware for battery-operated devices.
• Experience with GNSS, LoRa or LoRaWAN, embedded peripherals and an RTOS.

Responsibilities

• Design, develop, debug and optimise embedded firmware for low-power IoT devices.
• Integrate GNSS modules, LoRa/LoRaWAN connectivity and peripheral hardware.
• Develop software within an RTOS environment, preferably FreeRTOS.
• Collaborate with hardware engineers to integrate firmware with MCUs, sensors and modules.
• Perform embedded debugging, fault investigation and root-cause analysis.
• Support firmware verification, validation and production release activities.
• Communicate progress, risks and blockers to stakeholders.

Skills

C/C++

STM32

RTOS

GNSS

LoRa/LoRaWAN

I2C

SPI

ADC

DAC

PWM

Debugging

Team collaboration

Tools

VS Code

STM32CubeIDE

Job description

Orion Group is recruiting a Senior Embedded Firmware Engineer for a multinational biopharmaceutical client in Cambourne, UK. The role is hybrid and an initial 2-year contract with potential extension.

You will design and deliver production-ready firmware for low-power IoT devices, collaborating across UK, Israel and the United States. You will work on GNSS, LoRa/LoRaWAN, sensors and peripherals, with strong emphasis on power management, debugging and integration with hardware teams.