Olof grew up in Tyresö. He has a brother, Markus, and a sister, Linda. He developed an interest in playing football at the young age of four and remained active in the sport until he sustained a knee injury at the age of fifteen. The injury eventually became a catalyst for his transition from playing Counter-Strike casually, into taking it more seriously.
Career
2012–2013
Olofmeister quietly began his career in Absolute Legends and H2k without garnering much attention. It was not until he joined LGB eSports in June 2013 where he began to rise to prominence. The roster had their most successful run at the ESL One Katowice 2014 Major where they placed 3rd-4th after losing 1:2 to Virtus Pro.
2014
Along with his teammate Freddy "KRIMZ" Johansson, Kajbjer left LGB and joined fnatic in June. There, he found immediate success, helping his team to a second-place finish at the ESL One Cologne 2014Major Championship. During one of the games in this tournament against Team Dignitas, on the map de_overpass, he gained widespread attention by defusing the bomb milliseconds before a Molotov could kill him, securing match point. Subsequently, commemorative graffiti was added on the mapand a weapon skin to Glock-18 was added in the game. In the months following, Fnatic saw tremendous success, and were favorites going into DreamHack Winter 2014, the following Major Championship. After advancing from a second-place finish in their group, Fnatic were seeded against rivals Team LDLC in the quarter-final. During the match Olofmeister became the center of controversy when he was boosted by his teammates into an, unbeknownst to him, illegal position which allowed his team to comeback from a nine-round deficit and win the match. After LDLC filed a complaint against them which ruled that the match had to be replayed, Fnatic filed a counter complaint, pointing out that LDLC had used a similar position in the first half. The tournament organiser ruled that the entire map should be replayed, however Fnatic forfeited the game and withdrew from the tournament. The incident became infamous in the CS:GO community where Kajbjer and the map Overpass were nicknamed "Boostmeister" and "Olofpass" respectively. Following the event, Olof considered leaving Fnatic and the game all together, but wound up staying after a successful run at the ESEA Invite Season 17 Global Finals.
2015
In February, Fnatic won the IOS Pantamera tournament after beating Titan in the finals. In March, Fnatic won ESL One Katowice 2015, the first Major Championship of the year. In August, Fnatic became the first team to win two consecutive Major Championships in a row, as they were crowned champions of ESL One Cologne 2015. At DreamHack Open Cluj-Napoca 2015, the third Major Championship of the year, Fnatic finished 5-8th. After Markus "pronax" Wallsten left Fnatic on the 12th of November 2015, they recruited Olof's long-time friend and former teammate Dennis "dennis" Edman. The team proceeded to win all three remaining tournaments of the year: FACEIT DreamHack Winter 2015, Fragbite Masters Season 5, and ESL ESEA Pro League Season II - Finals. Olofmeister was widely regarded as the best Counter-Strike player of 2015.
2016
In January, Olofmeister and his team won the SLTV Starseries XIV over Natus Vincere. On March 5, Olofmeister and Fnatic won the IEM Katowice World Championship 2016, beating Luminosity Gaming 3–0 in the finals. Fnatic placed 5–8th at the in April. Shortly thereafter on April 8, it was announced that Olofmeister would be taking a break from competitive play due to a repetitive strain injury of a hand and would be temporarily replaced by Niclas "Plessen" Plessen; whom was shortly replaced by John "wenton" Eriksson.
2017 - 2019
On August 20, 2017, Olofmeister officially signed with FaZe Clan, ending his 3-year tenure with Fnatic. Since joining FaZe Clan, he has won 10 events including: ESL One: New York 2017, Epicenter 2018 and Blast Pro Series Copenhagen 2019, yet he has not won a major playing with FaZe Clan. He reached the grand final of, but they were defeated by Cloud9 in the finals.
2020
In May 2020, Olofmeister announced that he will take an indefinite break from Counter-Strike and FaZe Clan, citing in a statement that he had become "increasingly fatigued" and "losing motivation".
Teams
H2k
In H2k, Olofmeister played with Joel "emilio" Mako, André "keiz" Carlsson, John "wenton" Eriksson, and Hugo "huggan" Lopez.
Absolute Legends
In Absolute Legends, Olofmeister played with Andreas "schneider" Lindberg, Markus "pronax" Wallsten, Dennis "dennis" Edman, and Alexander "rdl" Redl. Following the teams break up in 2013, Andreas "schneider" Lindberg and Markus "pronax" Wallsten eventually joined Fnatic, the team Olofmeister later joined in 2014, then replacing Andreas "schneider" Lindberg.
LGB eSports
In LGB eSports, Olofmeister played with his former Fnatic teammates Dennis "dennis" Edman and Freddy "KRIMZ" Johansson, as well as Simon "twist" Eliasson and Isak "cype" Rydman.
Fnatic
Olofmeister joined Fnatic alongside Freddy "KRIMZ" Johansson on June 30, 2014.
FaZe Clan
On August 20, 2017, Olofmeister officially signed with FaZe Clan, ending his 3-year tenure with Fnatic. Since joining the team, Olof temporarily left the team for personal reasons, requiring the team to use stand-ins 'Xizt', a Swedish player currently playing for Fnatic, and 'Cromen', a Norwegian player who is currently inactive. On May 25, 2018, FaZe announced Olofmeister's return to the team, but after a short while, it was confirmed that Olof was 'not ready' to play. Since then, Olof made his return to competitive play on July 10.