[13] Jóhannes worked as a fisherman for ten years before taking more managerial positions at a fish factory.
[1][13] In 2011 he came to Namibia[14] where foreign companies weren't allowed to bid on fishing quotes, but local bidders could resell their rights.
Jóhannes says he helped Samherji inflate fees, evade taxes, and engage in transfer pricing violations.
[7][13][14] In August 2018, Jóhannes started working with the investigation team in Namibia and special units of the Namibian government.
[14] After returning to Iceland, he contacted WikiLeaks and began working on the Fishrot Files with Kristinn Hrafnsson.