We are seeking a highly skilled Senior Firmware Engineer for our firmware development team. The ideal candidate will have extensive experience in IoT, a strong background in hardware, proficiency in C/C and Python, and the breadth to work with device data from the sensor through to the cloud. The successful candidate will be responsible for the firmware development process, ensuring the delivery of robust and efficient code, and collaborating with cross-functional teams to drive innovation.
This role offers an exciting opportunity to lead a small team of firmware engineers, work on cutting-edge IoT projects, and make a significant impact on our products. The successful candidate will take on our established firmware platform, its test regime and the code that processes data coming off our devices, with a structured handover and support from the existing team. If you are passionate about embedded systems, have a strong technical background, and thrive in a collaborative environment, we encourage you to apply.
Key Responsibilities:
Contribute to firmware development, sharing technical knowledge and best practice with other team members.
Design, develop, and maintain embedded firmware for IoT devices using C/C and Python
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Collaborate with hardware engineers to ensure seamless integration between firmware and hardware
Implement and optimise communication protocols such as MQTT and LoRaWAN
Integrate firmware solutions with cloud platforms, such as AWS IoT Core
Analyse and debug complex hardware and firmware issues
Maintain existing codebases, improving documentation and code quality where required
Implement version control best practices, CI/CD and utilise static code analysis tools to ensure code stability
Continuously explore and evaluate new technologies to improve product performance and functionality
Maintain and develop the firmware test regime, including unit, integration and on-hardware testing, and the validation process used ahead of each release
Build and maintain the software modules that decode and unpack raw device payloads into structured, validated data
Interrogate device data where needed to validate firmware behaviour and diagnose field issues, and support colleagues undertaking wider data analysis
Experience
Bachelor's or Master's degree in Computer Science, Electrical Engineering, or a related field
Mid to Senior level engineer
Strong proficiency in C/C and Python programming
Strong experience with STM32 microcontrollers and the surrounding toolchain (or a comparable ARM Cortex-M family)
Strong familiarity with IoT protocols, such as MQTT and LoRaWAN
with cloud integration, preferably with AWS IoT Core
Excellent debugging skills for hardware and firmware issues
Familiarity with version control systems (e.g., Git) and static code analysis tools
Strong problem-solving skills
Excellent communication and team working skills
Experience defining and implementing firmware test approaches, including automated and on-hardware testing
Experience with binary protocol design and decoding of packed sensor payloads
Desirable Skills:
Domain knowledge within the rail, energy or mining sectors
Experience in implementing low-power modes and optimising power consumption
Comfort analysing device data in Python (e.g. pandas) to support engineering and product decisions
Familiarity with real-time operating systems (RTOS) and their implementation
Familiarity with designing, implementing and maintaining OTA firmware update mechanisms
Experience with wireless communication technologies (e.g., BLE, Wi-Fi)
Understanding of secure coding practices and encryption algorithms
Engagement with the wider embedded or IoT community, for example open-source contributions, talks or technical writing
Working Arrangements:Hours: Monday to Friday, 08:30 to 17:30.
Benefits:
Hybrid Working
25 days holiday bank holidays
Birthday day off
Health Insurance
Death in Service Insurance
We thank you for your application in advance. Due to the volume of applications, we receive, unfortunately, we are not able to respond to every application personally; therefore, if you have not heard back from us within 5 working days, please assume your application has been unsuccessful. To see our other available vacancies, please visit our website.
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