Signify is the world's largest lighting company, but the real story for security professionals is the attack surface. With EUR 5.8 billion in annual sales and operations in over 70 countries, the company's core business is no longer just selling bulbs - it's deploying and managing vast IoT networks. Its connected lighting systems, built on the Interact platform, are installed in buildings and cities worldwide, turning each luminaire into a potential node in a sprawling, physical-cyber system. The threat model here is the convergence of operational technology (OT) and enterprise IT, where a compromised lighting network could serve as a pivot point into critical infrastructure.
The technical domains are concrete and security-relevant: IoT infrastructure, connected lighting systems, and Li-Fi connectivity (light-based wireless communication) form the core of their digital offerings. This requires securing firmware for millions of devices, protecting cloud-based management platforms, and ensuring the integrity of data flowing from sensors embedded in luminaires. The team operates at the intersection of industrial control systems and consumer IoT, managing everything from 3D-printed luminaires with embedded intelligence to human-centric lighting solutions that adjust based on user data.
For cybersecurity talent, the challenge is scale and specificity. You're not just defending a corporate network; you're securing an ecosystem that touches professional buildings, consumer homes, and public spaces across 70+ countries. The R&D focus and culture of innovation mean new connected products and features ship continuously, each one expanding the digital perimeter. The role involves securing protocols for device-to-cloud communication, hardening industrial control systems, and managing the lifecycle security of products with long physical lifespans - a different calculus than typical software security.