Jensen began his career in North America after joining Cloud9 in 2015. In having long-time member Hai transition off the team, Jensen would join Sneaky, Meteos, and incoming coach Reapered to challenge the other teams in the NALCS. Although they did not place very high in the standings during Jensen’s first two splits of being on Cloud9, they still qualified for Worlds. In Summer 2016, Cloud9 would add Impact and Smoothie and begin challenging Team SoloMid for the title. Even though they came close to winning the NALCS several times, Jensen and his teammates were never able to pull it off. In Summer 2018, the coaching staff decided on a roster change that swapped out longtime players Jensen, Sneaky, and Smoothie which resulted in a lot of community backlash. They were subbed back onto the team after a few weeks, and this time placed second, losing to Team Liquid. During Jensen’s time on Cloud9, the team would become known for having the most international success despite not becoming champions of the region. At the 2018 World Championships, Jensen led the team to semifinals, where they ultimately fell to Fnatic.

In 2019, Jensen would move on from Cloud9 to join Team Liquid, replacing Pobelter. The star-studded Team Liquid roster then included other players such as Impact, Xmithie, Doublelift, and CoreJJ. In Spring 2019, Jensen would earn his first LCS title and then place second at the Mid-Season Invitational. In the following Summer split, Jensen would win his second trophy and bring Team Liquid to its record of four titles in a row. Even though Jensen and Team Liquid had success all year, at the World Championships, Team Liquid would not pass the group stage into the knockout stage. In 2020, more roster changes occurred with Broxah replacing Xmithie in the Spring Split and in the Summer Split, Doublelift leaving. Without Doublelift, Jensen became the main carry of the team and proved himself to be one of the best NA mid laners of all time. Following the 2020 World Championship, Jensen re-signed with Team Liquid for a three year extension worth $4.2 million.