Lyndon Fawcett is an Arm Fellow and Senior Director leading Product Security with over a decade of experience architecting cloud-to-edge security for commercial and research environments. He combines hands-on systems engineering in C/C++, Go and Python with deep research credentials (PhD) and multiple publications in scalable distributed systems security. His career spans high-assurance roles at GCHQ—where he built firmware and a 400Gbps traffic processing/monitoring framework—and leadership positions at Arm and its SeeChange subsidiary, owning end-to-end product security for IoT and cloud offerings. Known for bridging experimental hardware, network monitoring, and production security, he brings a rare mix of operational delivery, academic rigour, and pragmatic threat-aware architecture. Based in Cambridge, he emphasizes measurable, auditable security outcomes across large-scale distributed infrastructure.
11 years of coding experience
6 years of employment as a software developer
Doctor of Philosophy (Ph.D.), Scalable Distributed Systems Security, Doctor of Philosophy (Ph.D.), Scalable Distributed Systems Security at Lancaster University
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Lyndon Fawcett - Senior Director Head Of Product Security at Arm