Senior Firmware Engineer

In Gloucestershire, join a focused embedded hardware startup to lead firmware development across the full lifecycle. You will shape low-level software for ARM-based MCUs, from requirements and architecture to implementation and release, collaborating with hardware teams. The role emphasizes hands-on problem solving, OTA updates, and safe, robust firmware for multi-processor products. You’ll work on embedded C/C++, RTOS (Zephyr/FreeRTOS), bare-metal, and Linux environments, contributing to high-impact hardware-software integration. This is a technically demanding, office-based opportunity with a strong growth trajectory and generous rewards.

• Superb salary and benefits
• office based role
• collaborative startup culture

• Develop and own firmware from requirements to release
• Architect and implement embedded software for ARM-based MCUs (STM32)
• Work with bare-metal and RTOS (Zephyr, FreeRTOS)
• Implement bootloaders and OTA update mechanisms for multi-processor systems
• Integrate with communications protocols (UART, I2C, SPI, LoRA) and BLE/WiFi/GPRS interfaces
• Provide hardware debugging using logic analyzers and oscilloscopes
• Collaborate with hardware team and other stakeholders to ensure robustness and safety
• Support embedded Linux environments and cross-functional product delivery

• Embedded C/C++ proficiency
• ARM-based microcontrollers experience (STM32)
• Bare-metal development experience
• RTOS experience (Zephyr, FreeRTOS)
• Embedded Linux expertise
• Communications protocols (UART, I2C, SPI, LoRA)
• BLE/WiFi/GPRS interfacing
• Bootloaders and OTA for multi-processor products
• Hardware debugging with logic analyzers and oscilloscopes
• 10+ years of embedded firmware experience
• problem solver with strong communication

• self-driven
• strong communication
• confident problem solver
• Embedded C/C++
• ARM Cortex/Microcontrollers (STM32)
• Bare-metal programming