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# Embedded Firmware Engineer

- **Company:** CircuitWorx
- **Location:** West Dean, UK
- **Experience:** Experienced
- **Salary:** £40,000.0
- **Contract:** Temporary to permanent
- **Skills:** Board Bringup, ARM Architecture, Automation of Tests, AUTomotive Open System Architecture (AUTOSAR), C++ (Programming Language), Software Quality, Code Review, Continuous Integration, Software Debugging, Linux, Middleware, Embedded Software, Firmware, FreeRTOS, Joint Test Action (IEEE Standards), Python (Programming Language), Raspberry Pi, Real-Time Operating Systems, Release Management, Shell Script, Toolchain, Universal Asynchronous Receiver/Transmitter, Serial Peripheral Interface, PIC Microcontroller, Git, Bare Metal, Build Tools, Software Version Control
- **Published:** September 25, 2026
- **Apply:** https://www.adzuna.co.uk/jobs/details/5896695295

## About the Role

* 2+ years of professional embedded firmware development experience
 * Strong proficiency in C and C++ for bare-metal and RTOS-based systems
 * Hands-on experience with ARM Cortex-M architecture
 * Proven experience with STM32 and/or ESP32 microcontrollers
 * Solid understanding of embedded communication interfaces: I2C, SPI, UART, CAN
 * Ability to read and interpret schematics and datasheets
 * Comfortable working across multiple concurrent projects with varying requirements
 * Experience with FreeRTOS and/or Zephyr RTOS
 * Familiarity with Linux-based development environments, including build systems, shell scripting, and toolchains
 * Python development experience, particularly on Raspberry Pi platforms
 * Awareness of industry standards relevant to medical or automotive development
 * Experience with version control (Git) and CI/CD pipelines for embedded systems
 * United Kingdom work authorisation required

## Description

* Design, develop, and maintain firmware in C/C++ for embedded microcontroller-based systems across multiple client projects
 * Develop drivers and middleware for communication interfaces including I2C, SPI, UART, and CAN
 * Work with STM32 and ESP32 platforms across the full development lifecycle, from hardware bring-up through to production release
 * Implement real-time applications using FreeRTOS and/or Zephyr
 * Develop supporting tooling and automation scripts in Python, including on Raspberry Pi-based platforms
 * Debug and optimise firmware using tools such as JTAG/SWD debuggers, logic analysers, and oscilloscopes
 * Collaborate with hardware engineers to review schematics and support PCB bring-up
 * Engage directly with clients to understand requirements and communicate technical progress where needed
 * Contribute to code reviews and uphold high standards of code quality, documentation, and traceability, particularly important in regulated industries such as medical and automotive

Technologies:

 * ARM
 * CI/CD
 * Embedded
 * Firmware
 * FreeRTOS
 * Git
 * Hardware
 * Support
 * Linux
 * Python
 * AUTOSAR
 * C++


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