Senior Firmware Engineer

Platform Recruitment; Northstowe; Hybrid; GBP 55,000 - 65,000; Full time

Job summary

Platform Recruitment in Cambridge is seeking a Senior Firmware Engineer to join a high‑autonomy R&D team. You will own bare‑metal firmware development for ARM microcontrollers, delivering robust, high‑performance code for precision motion control.

The role requires strong embedded C, hands‑on experience with ARM architectures, and collaboration with hardware engineers. Hybrid work in the Cambridge area offers a balanced environment.

Qualifications

• 3+ years experience developing ARM architecture in embedded C on bare metal
• Ability to read hardware schematics
• Experience with Agile processes (sprints, stand-ups, retrospectives)
• Knowledge of Python or Bash for automation

Responsibilities

• Develop, debug, and optimise bare-metal firmware for ARM-based microcontrollers
• Contribute to an existing code base adding features with low-level designs documentation
• Collaborate with hardware engineers to review schematics and develop drivers for interfaces such as SPI, I2C, UART, ADC, and DAC

Skills

Bare-metal firmware

ARM microcontrollers

Agile processes

Python/Bash

Job description

Senior Firmware Engineer | Cambridge | £55-65k | Hybrid

My client is looking for an experienced Embedded Software Engineer to join their industry-leading R&D team. You will take ownership of a bare-metal control stack, working with a high degree of autonomy to manage complex hardware-software integrations and precision motion control.

Responsibilities

• Develop, debug, and optimise bare-metal firmware for ARM-based microcontrollers
• Make significant contributions to an existing code base to add new features and enhancements while documenting low-level designs.
• Work closely with hardware engineers to review schematics and develop drivers for interfaces such as SPI, I2C, UART, ADC, and DAC.

Requirements

• 3+ years experience developing ARM architecture in embedded C on bare metal
• Skilled in reading hardware schematics
• Experience of Agile processes, including sprint planning, daily stand-ups, and retrospectives
• Knowledge of Python or Bash to automate tasks, test scripts, and build processes.

Bonus Skills

• Knowledge of motion control systems.
• Experience with secure boot, Hardware Root of Trust, and attestation.
• Strong written and verbal communication skills for cross-functional collaboration and technical documentation.

If you are a proactive problem-solver ready to take ownership of complex bare-metal firmware challenges,