Electronics & Embedded Software Engineer - £45,000 Sheffield City Centre | Hybrid WFH | Permanent KO2's client a rapidly expanding technology SME based in a beautifully restored steelworks building in the heart of Sheffield. The electronics business is a small, agile team developing cutting-edge ultrasonic sensing systems for international clients - and are on the lookout for a talented Electronics & Embedded Software Engineer to help take our R&D projects into commercial products. Founded in 2018, they are a 12-person company with a rich mix of PhDs, mechanical engineers, and technical specialists. This electronics business has built a reputation for high-quality R&D consultancy and are now transitioning into full product development, there is exciting growth ahead. The workspace is a creative, industrial heritage site - a truly inspiring place to work. You'll take ownership of the electronics side of the business, helping move from integrating third-party PCBs to designing and building the companies own hardware. This role is ideal for someone who's excited by the challenge of developing products from the ground up and wants to grow with a business that's scaling fast. Your responsibilities will include: PCB design, development, and iteration (spinning new boards) Embedded software development (mainly in C) Supporting productisation of ultrasonic sensor systems Basic programming and microcontroller work (e.g., ESP32) Ideally, contributing FPGA experience (bonus, not essential) Skills Required: Strong electronics background Experience with embedded software (C, ideally for ESP32 or similar) Comfortable working independently and owning your domain Bonus: FPGA experience Salary & Benefits: Up to £45,000 per year Hybrid & highly flexible working (family-friendly, commitment-friendly) Relaxed and supportive culture Clear path for progression as we grow the electronics team This is a rare chance to help shape a company's electronics capability in its early growth stage, while enjoying the flexibility and culture of a close-knit team.