Senior Embedded Software Engineer Stroud, Gloucestershire | Up to £70,000 KO2’s client is a well-funded, fast-growing tech start-up building intelligent, ultra-low-power sensing systems for real-world environments. Their platforms combine embedded firmware, signal processing, secure wireless connectivity, and edge ML. They need a Senior Embedded Software Engineer to take ownership from concept to production. What You’ll Do \* Architect and develop low-power embedded firmware (C/C++) \* Design battery-powered, remote sensing systems \* Build sensor acquisition & real-time signal processing pipelines (MEMS mics, accelerometers, environmental sensors) \* Develop RF systems (LoRa / LPWAN, mesh networking) \* Implement secure communications (encryption, authentication, secure boot, OTA) \* Deploy optimised ML models for on-device acoustic detection You’ll work closely with hardware, data and product teams to deliver secure, robust, production-ready systems. What You’ll Bring \* Strong embedded C/C++ expertise \* Full product lifecycle experience (concept → production) \* Proven low-power design experience \* Sensor integration & real-time processing \* RF experience (LoRa or similar) \* Mesh networking & embedded security \* Strong debugging and hardware bring-up skills Bonus: Acoustic ML, MEMS microphone systems, noise mitigation, start-up experience. If you want to build intelligent sensing platforms from the ground up — and see your work deployed in the real world — KO2 would love to speak with you