The 20-year-old penned a three-year-deal with the German second division outfit that will see him stay at the Millerntor-Stadion until June 2023.
Prior to his move to Germany Aremu had featured for Nigeria Professional Football League sides United, Remo Stars,Sunshine Stars, Akwa United before joining Ghanaian Premier League side Inter Allies.
Aremu scored five goals in 63 games for IK Start before his move to Timo Schultz’s side who are chasing a return to the German elite division.
Speaking on the acquisition of the youngster, club’s sporting director Andreas Bornemann stated that Aremu will bring his wealth of experience and athleticism to the Neighborhood kicker.
"Afeez Aremu corresponds to the profile we were still looking for the defensive midfield,” Bornemann was quoted by club website.
“He brings athleticism and aggressiveness in the duels and, despite his young age, has already gained plenty of professional experience. That's why we believe that he won't find it difficult to get started with us."
"I'm glad I'm finally here. When the offer came from St. Pauli, I didn't have to think long,” stated Aremu.
“It's a big club and for me the change is the next important step in my development. Now I can't wait to get to know my teammates and start working."
He will join up with St. Pauli squad ahead of the 2020-21 campaign and is likely to train with them. According to manager Schultz, the Nigerian is the missing link in his squad while lauding some of his qualities.
"With Afeez, we get an element that we have been missing from the squad,” he said.
“He's the type of dynamic 'clearer' I wanted. He has already played several seasons at a high level and is still capable of development at the same time at his age."
For the former Nigeria U20 star, he revealed that he did not lose his sleep before accepting the club’s offer.
"I'm glad I'm finally here. When the offer came from St. Pauli, I didn't have to think long,” stated Aremu.
“It's a big club and for me the change is the next important step in my development. Now I can't wait to get to know my teammates and start working."
He will join up with St. Pauli squad ahead of the 2020-21 campaign and is likely to train with them.