Kristoffer Pettersson has extensive experience in the field of psychology, currently serving as a Doktorand at Mälardalen University since December 2020 and as a psychologist at Pettersson & Partners A since April 2020. Prior to these roles, Kristoffer founded and managed Mendeleo AB from April 2020 to April 2022, and practiced as a licensed psychologist at Psykologpartners from September 2014 to April 2020, as well as at Allmänpsykiatriska mottagningen City from August 2013 to August 2014, and Gustavsbergs vårdcentral from February 2011 to August 2013. Educationally, Kristoffer holds advanced degrees in psychotherapy and clinical psychology from Stockholm University, where training occurred between 2005 and 2021.