Johan Andersson has been with Paradox since the start in 1999, and worked as game designer and lead-programmer for Europa Universalis series, as well as the original Hearts of Iron game. Since 2002 Johan has been the Director of Development of Paradox's internally developed titles completing titles such as Crusader Kings, Victoria & Hearts of Iron 2. 

Formerly an employee of Funcom, where he was responsible for titles such as Nightmare Circus and NBA Hangtime, Mr. Andersson moved back to his native Stockholm to work as a senior programmer for Target Games in January 1998. He was involved from the start in developing the award winning Europa Engine, which has been used for over half a dozen successful games the last decade.