On 30 April 2014, he signed a three-year contract with Karlsruher SC, effective the following season.[5]
FC Augsburg
On 4 August 2015, Max joined FC Augsburg on a two-year contract with an option to extend the agreement, for a reported fee of €3.6 million.[6] Max scored his first goal for Augsburg in a 4–0 victory over
Hamburger SV in the Bundesliga on 30 April 2017.[7] He finished the 2017–18 Bundesliga season with 2 goals and 12 assists for Augsburg[8] With 12 assists, he became the 2nd top assist provider in the league only behind Bayern's Thomas Müller who had 14 assists.[9] In December 2018, in a 2–2 draw with Hertha BSC, he made his 100th league appearance for Augsburg.[10] On 13 December 2019, Max scored a brace away to TSG Hoffenheim while playing on the left wing, as regular winger Ruben Vargas was serving a one-game suspension. Max scored another brace in their next game, a win over Fortuna Düsseldorf, also while on the wing.
On 31 January 2023, Max moved to Eintracht Frankfurt on loan with an option to buy.[12] On 26 May 2023, Eintracht activated their option to buy and made the transfer permanent, signing a three-year contract with Max.[13]
Panathinaikos
On 6 August 2024, Max signed a three-year contract with Panathinaikos in Greece.[14]
International career
He was part of the squad for the 2016 Summer Olympics, where Germany won the silver medal.[15] He earned his first call-up for the senior team on 6 November 2020.[16] His debut came on 11 November 2020, in a friendly game against the Czech Republic.[17]
Personal life
He is the son of former German international striker Martin Max.[18]