Job Description:

Senior Embedded Software Engineer

Location: Stroud, Gloucestershire

Salary: Up to £70,000

KO2's client is an ambitious, well funded and fast-growing technology start-up based in Stroud, developing advanced sensing and monitoring systems that combine low-power embedded platforms, intelligent signal processing, and secure wireless connectivity.

The Role - Senior Embedded Software Engineer

You will be responsible for the full embedded development lifecycle:

• Scoping and requirements definition
• System architecture (hardware & software)
• Simulation and modelling
• Firmware development
• Integration and verification
• Validation and production release

The successful Embedded Software Engineer will work closely with hardware, data, and product engineers to deliver robust, secure, and power-efficient sensing platforms operating in demanding real-world environments.

Key Responsibilities

• Architect and develop low-power embedded firmware (C/C++) for sensor platforms
• Design for ultra-low power consumption in battery-operated and remote systems
• Implement sensor data acquisition and processing pipelines (e.g. MEMS microphones, accelerometers and other environmental sensors)
• Develop and optimise RF communications systems, particularly:
• LoRa or similar LPWAN technologies
• Mesh networking architectures
• Implement secure communications including encryption, authentication and secure boot mechanisms
• Develop machine learning-enabled acoustic detection and classification systems:
• Data pre-processing and feature extraction
• Deployment of optimised ML models on constrained embedded devices

Essential Experience

• Significant experience in embedded C/C++ development
• Strong experience across the full product lifecycle (concept → production)
• Proven expertise designing for low-power embedded systems
• Experience with sensor data acquisition and real-time signal processing
• Strong RF communications experience, particularly LoRa or comparable technologies
• Experience implementing mesh networking protocols
• Solid understanding of embedded security (encryption, authentication, secure firmware updates)
• Strong debugging and hardware bring-up skills

Highly Desirable

• Machine learning for acoustic detection/classification
• Experience with MEMS microphone-based systems
• Wind/ambient noise mitigation design (hardware and software)
• Secure OTA update mechanisms
• Experience in a start-up or high-growth environment

If you're a Senior Embedded Software Engineer looking to build intelligent, low-power sensing systems from the ground up - KO2 would be delighted to discuss this opportunity with you.