Early career Osei-Fosu holds a
CAF License A badge.
Liberty Professionals He served as assistant coach
Liberty Professionals in 2016 to 2017. He was later promoted to interim-coach in 2017. With the appointed of
Michael Osei as new coach, he was moved back to his role as assistant coach of the side. He parted ways with the club in September 2017.
Eleven Wonders In December 2019, following the departure of
Frimpong Manso as coach, he was appointed as head coach of
Techiman Eleven Wonders ahead of the
2019–20 Ghana Premier League season. In November 2020, he was linked with moves to
Legon Cities after the departure of
Goran Barjaktarevic, the reports however did not come through as he continued in his role as head coach of Eleven Wonders. In November 2020, Osei-Fosu expressed his ambition of coaching the
Ghana national football team, the Black Stars in the near future. In the
2020–21 season, his second season in charge, Techiman Wonders climbed from relegation zone in late June to a secure 12th-place finish at the end of the season. His contract expired at the end of the season.
Medeama On 20 August 2021, Osei-Fosu signed a three-year deal with Tarkwa based club
Medeama, replacing
Yaw Preko who joined the club on short term contract after
Samuel Boadu joined Hearts of Oak. == References ==