On 3 April 2017, it was confirmed that Jaissle would be the assistant of manager Alexander Zorniger of Danish Superliga side Brøndby starting from the summer 2017.

[7] In April 2021, it was reported that Jaissle would become the manager of RB Salzburg, succeeding Jesse Marsch, starting from July that year.

[8] In the 2021–22 season, he managed to win the domestic double, he also led the club to the Champions League knockout phase for the first time in their history.

On 28 July 2023, one day before the start of the 2023–24 season, he was relieved of his duties, leaving the club without a manager.

[12] With an Al-Ahli side that had just obtained promotion back to the Saudi Pro League (First Tier of Saudi Football), the German manager led his team to a third-place finish in the 2023–24 season, and achieved qualification to the 2024–25 Asian Champions League.