Kay Sievers

Kay Sievers is a computer programmer, best known for developing the udev device manager of Linux, systemd and the Gummiboot EFI boot loader. Kay Sievers made major contributions to Linux's hardware hotplug and device management subsystems.
In 2012, together with Harald Hoyer, Sievers was the main driving force behind Fedora's merging of the /lib, /bin and /sbin file-system trees into /usr, a simplification which other distributions such as Arch Linux have since adopted.
 employed by Red Hat, Inc., Sievers previously worked for Novell.
Kay Sievers grew up in East Germany and nowadays resides in Berlin, Germany.