I am a Linux kernel developer at Arm. I am the official maintainer of the Arm CryptoCell Linux device driver and work on general cryptography and security issues in the Linux kernel. I've been programming for more than 25 years. Over the years I've been a team leader, CTO, software architect, teacher and founded two companies but I always keep coming back to my first love - hands on software development. I've been active in the Open Source community for more than 20 years and have co-founded the Hamakor NPO and the Augunst Penguin conference. I'm the co-author of "Building Embedded Linux Systems", 2nd edition. Besides computers I'm a curious guy that likes to explore the world and himself: at 6th grade I've mastered the dark art of flexing my auriculares muscles so I can wiggle my ears at will. Lately I've taken up studying how my own mind works.