Jens Bergensten (née Thornell). Jens Bergensten Jens "Jeb" Bergensten is a Swedish video game designer. Since December 2010, he has worked for the video game developer Mojang as a programmer and game designer. He became the lead designer and lead developer of the indie sandbox game "Minecraft", after Markus "Notch" Persson stepped down from his position in December 2011. He is known by his in-game name "jeb_". Bergensten started programming his first games at age 11 using BASIC and Turbo Pascal. By age 21, he was a mapper and modder for the first-person shooter "Quake III Arena". Later he worked as a
Minecraft mods project. "Minecraft" mods are credited for being a gateway for children to pick up coding and programming. Several educational projects have been created to further encourage students to learn coding through "Minecraft", including LearnToMod, ComputerCraftEdu, and Minecraft: Pi Edition, all of which are offered free to teachers. Programming classes utilizing "Minecraft" were also started by the University of California, which aims to teach children aged 8–18 how to program applications. In 2011, "MinecraftEdu" formed to sell a version of Minecraft to schools that enabled the teaching of a wider variety of subjects including language, history and art. In January 2016,