Senior Firmware Engineer — Arctic Field-Ready Embedded

Arctic Research and Development; Cirencester; On-site; GBP 65,000 - 90,000; Full time

Benefits offered by this job

Private Health Insurance

Dental & Optician

Meaningful equity package

Field travel to Arctic sites

Competitive compensation

Job summary

The Last Frontier is seeking a Senior Firmware Engineer to join our onsite team in Calmsden, Cirencester, UK. You will craft high‑reliability firmware for ARM-based processors and collaborate with hardware teams to integrate sensors and interfaces for extreme environments.

You will design RTOS configurations, bootloaders, and debugging tools, while ensuring code quality with Git. A strong field‑test mindset and startup attitude are valued here.

Qualifications

• 5+ years embedded firmware development in C for ARM or equivalent.
• Experience with STM32 family is desirable.
• Experience with SPI, I2C, UART protocols is essential.
• Experience with RTOS (FreeRTOS, Zephyr) and bare-metal design.
• Understanding of bootloaders and OTA for updating multi-processor products.
• Willingness to test in the field.

Responsibilities

• Design, develop, and maintain embedded firmware for microcontrollers and microprocessors, writing efficient, reliable, and well-documented code.
• Hardware integration with sensors and interfaces (UART, SPI, I2C, CAN).
• Testing, debugging, and validation using oscilloscopes, logic analyzers, JTAG debuggers, and emulators.
• Develop and optimize RTOS configurations, bootloaders, and interrupt-driven systems.
• Maintain code quality through peer reviews and Git version control.
• Collaborate with software, mechanical, and QA teams; contribute to documentation and reviews.

Skills

Embedded firmware development

C/C++ programming

ARM Cortex (M4/M33)

RTOS (FreeRTOS, Zephyr)

SPI/I2C/UART protocols

Hardware debugging

Git/version control

Field testing in harsh environments

Education

Engineering degree (preferred)

Tools

JTAG debuggers

Oscilloscopes

Logic analyzers

Job description

The Last Frontier is seeking a Senior Firmware Engineer to join our onsite team in Calmsden, Cirencester, UK. You will craft high‑reliability firmware for ARM-based processors and collaborate with hardware teams to integrate sensors and interfaces for extreme environments.

You will design RTOS configurations, bootloaders, and debugging tools, while ensuring code quality with Git. A strong field‑test mindset and startup attitude are valued here.