The opportunity As a Senior C++ Developer, you won t be maintaining legacy code or adding features at the edges. You have the option to work fully remote or partically remote with access to the clients offices. You ll be designing and building core systems that will ultimately run on millions of industrial edge devices, shaping how they authenticate, communicate, and trust one another from the edge inward. This is deep, low-level engineering with genuine real-world consequences. You ll work on: High-performance C++ systems that must be secure, resilient, and elegant Message- and event-driven architectures spanning cloud, edge, and device-to-device communication Decentralised security models that challenge conventional IoT thinking Deployment, configuration, and governance approaches that actually work at industrial scale You ll have meaningful influence over architecture, standards, and long-term technical direction. Company Description Across critical national infrastructure, industrial systems, defence, and smart cities, billions of devices communicate every day often insecurely, often via fragile, centralised models that were never designed for today s threat landscape or scale. This early-stage UK technology company exists to change that. Working alongside leading academic researchers, the team has created a radically new, edge-native authentication and security platform. It enables real-time communication and narrow AI across vast industrial networks without relying on