Johan's day job is IT security, but at night he's immersed in science. He has been involved with DIY Biology projects for about two years. With help from many, he leads the lab work for the Real Vegan Cheese project. The Real Vegan Cheese project, which won a Gold medal at the 2014 iGEM competition, aims to produce milk proteins via yeast and thus enable a source of cheese that doesn't require animals.