Senior Software Engineer

Lee-Ann Cullen; Hunton Bridge; Vor Ort; GBP 80.000 - 110.000; Vollzeit

Zusammenfassung

Upper Highway is seeking an experienced embedded firmware engineer to design, develop and maintain firmware for cellular-connected devices. You will work with hardware and software teams to ensure reliable, secure and power-efficient operation across production deployments.

Ideal candidates have 8+ years in embedded firmware, strong C/C++, and hands-on experience with ARM Cortex-M MCUs, RTOS such as FreeRTOS, and GSM/LTE modules. Collaboration, testing and thorough documentation are essential.

Qualifikationen

• Minimum 8 years embedded firmware/software development experience.
• Strong C and C++ skills, preferably with ARM Cortex-M or similar microcontrollers.
• Experience with RTOS environments such as FreeRTOS or bare-metal development.
• Knowledge of GSM/LTE modules, AT commands and wireless communications.

Aufgaben

• Design, develop and maintain embedded firmware in C/C++ for microcontroller-based devices.
• Develop and optimise communication drivers, protocols and interfaces for cellular connectivity and embedded peripherals.
• Ensure firmware meets reliability, security and power-efficiency requirements.
• Collaborate with hardware and software teams on product development, integration, testing and improvements.
• Implement diagnostics, error handling and recovery mechanisms.
• Contribute to firmware architecture, coding standards, code reviews and technical documentation.
• Conduct software testing, support production processes and troubleshoot complex field issues.
• Keep up to date with cellular technologies, embedded security and relevant regulatory requirements.
• Provide technical guidance to junior engineers and improve development processes.

Kenntnisse

Embedded C/C++

ARM Cortex-M

RTOS (FreeRTOS)

GSM/LTE modules

UART/SPI/I2C

Git

Debugging tools

Diagnostics

Code reviews

Ausbildung

Bachelor's degree or equivalent

Tools

Build systems

Jobbeschreibung

Upper Highway. Competitive remuneration, with relocation costs covered where applicable.

Responsibilities

• Design, develop and maintain embedded firmware in C / C++ for microcontroller-based devices


• Develop and optimise communication drivers, protocols and interfaces for cellular connectivity and embedded peripherals


• Ensure firmware meets reliability, security and power-efficiency requirements


• Collaborate with hardware and software teams on product development, integration, testing and improvements


• Implement diagnostics, error handling and recovery mechanisms


• Contribute to firmware architecture, coding standards, code reviews and technical documentation


• Conduct software testing, support production processes and troubleshoot complex field issues


• Keep up to date with cellular technologies, embedded security and relevant regulatory requirements


• Provide technical guidance to junior engineers and improve development processes

Requirements

• Minimum 8 years’ embedded firmware / software development experience


• Strong C and C++ skills, preferably with ARM Cortex-M or similar microcontrollers


• Experience with RTOS environments such as FreeRTOS or bare-metal development


• Knowledge of GSM / LTE modules, AT commands and wireless communications


• Understanding of embedded peripherals and interfaces, including UART, SPI, I2C, ADC, GPIO and DMA


• Experience with Git, debugging tools, build systems and software testing


• Proven ability to develop reliable, production-ready firmware for deployed devices


• Strong analytical, problem-solving and communication skills


• Relevant degree or equivalent practical experience

Advantageous

• Experience in security, alarm systems, IoT, telemetry or industrial communications


• Knowledge of alarm signalling protocols, such as Contact ID


• Experience with OTA firmware updates, device management or low-power design


• Exposure to hardware development, PCB testing and ICASA compliance requirements


• Python scripting for test automation


• Previous technical leadership or mentoring experience

If you are passionate about embedded technology and enjoy tackling complex engineering challenges, this is an excellent opportunity to contribute to the development of innovative, reliable products.