He was a member of the Denmark men's national ice hockey team for the 2011 IIHF World Championship.

Having played all of his youth hockey with Rødovre as well as three seasons with Rødovre Mighty Bulls of the Danish Elite League, Jensen Aabo is regarded as one of the most talented defencemen to come out of Denmark in recent years, he was sought after by Rögle as well as Malmö Redhawks before deciding to join the Ängelholm team prior to the 2010–11 season.

[1] After playing four seasons in the Kontinental Hockey League with Finnish club, Jokerit, Jensen Aabo left as a free agent following the 2018–19 season, returning to the SHL in agreeing to a two-year contract with the Malmö Redhawks on April 18, 2019.

[2] Following a lone season in the Deutsche Eishockey Liga (DEL) with Krefeld Pinguine in 2021–22, Jensen Aabo moved to the neighbouring ICE Hockey League, joining Austrian based club, EC KAC, on 5 May 2022.

[3] Jensen Aabo is considered an all-round defenceman with an emphasis on defensive and physical play.