Hardware & Embedded Software Engineer

Location: London (Hybrid) Rate: £50-55 per hour + VAT IR35 Status: Outside IR35 About the Opportunity We're supporting an innovative technology business developing cutting-edge wearable products that combine hardware, embedded systems, AI, and data analytics to deliver real-time performance coaching. The business has grown from an early-stage concept into a globally recognised technology platform, leveraging large-scale real-world data and intelligent sensing to create industry-leading products. We're seeking a Hardware & Embedded Software Engineer to help develop the next generation of wearable technology. The Role This is a highly varied engineering position sitting at the intersection of hardware, embedded software, sensors, and product development. You'll work closely with product, AI, mobile, and data teams to develop wearable electronics that deliver accurate real-time performance feedback in demanding environments. This role is ideal for an engineer who enjoys owning products from concept through to manufacture and wants to see their work used by thousands of customers worldwide. Responsibilities Design and develop embedded electronic systems for wearable technology products Select sensors, microcontrollers, wireless modules, batteries, and supporting components Design schematics and support PCB development activities Develop embedded firmware in C/C++ Integrate IMUs, pressure sensors, Bluetooth Low Energy (BLE), and other sensing technologies Develop and optimise real-time data acquisition and processing systems Prototype and test new product concepts Perform hardware validation, debugging, and performance optimisation Support manufacturing, certification, and production readiness activities Work closely with software, mobile, and machine learning teams to ensure seamless hardware-software integration Contribute to future product roadmaps and technology strategy Required Skills & Experience Degree in Electronics Engineering, Embedded Systems, Computer Engineering, or similar Experience developing embedded hardware and software products Strong schematic design and component selection experience Embedded C/C++ programming experience Experience with ARM Cortex-M microcontrollers or similar embedded platforms Experience working with sensors such as IMUs, pressure sensors, accelerometers, or motion tracking devices Understanding of low-power design techniques for battery-operated products Experience with wireless communication technologies, particularly Bluetooth Low Energy (BLE) Familiarity with laboratory debugging tools including oscilloscopes, logic analysers, and protocol analysers Strong problem-solving skills and hands-on engineering mindset Desirable Experience Wearable technology development Sports technology products Signal processing Sensor fusion algorithms Python for test automation or data analysis PCB design experience using Altium, KiCad, or similar ECAD tools Manufacturing and product certification experience Experience working in start-up or scale-up environments What's on Offer Opportunity to work on innovative consumer technology products Significant technical ownership and influence over product direction Exposure to hardware, software, AI, and data-driven product development Outside IR35 contract Hybrid working environment Collaborative and highly technical engineering culture Opportunity to help shape the future of intelligent wearable technology If you're excited by sensors, embedded systems, real-world data, and building products that genuinely improve user performance, we'd love to hear from you. please note we cannot offer sponsorship for this this current role