Born in Plovdiv, Yusein started to play football in the Botev 2002 Academy, before joining the youth formations of Botev Plovdiv.
He began his professional career in Botev Plovdiv on 13 March 2013, when he debuted as a substitute in an away match against Minyor Pernik in Sofia.

Serkan was included for the first time in the starting lineup of Botev Plovdiv during a goalless draw with CSKA Sofia on 11 May 2014.

Yusein scored his first goal for Botev Plovdiv on 23 September 2014.
He came on as a substitute during the match and scored the last goal for the 0-4 away win against Lokomotiv Mezdra in the first round of the Bulgarian Cup tournament.
A few days later, on 27 September, he came on as a substitute during the derby match with Lokomotiv Plovdiv which was won 2-0 by Botev Plovdiv.
On 14 December  Serkan played 57 minutes and left good impression on the pitch during Botev's 1-0 defeat by Ludogorets Razgrad.
Born in Plovdiv, Yusein started to play football in the Botev 2002 Academy, before joining the youth formations of Botev Plovdiv. He began his professional career in Botev Plovdiv on 13 March 2013, when he debuted as a substitute in an away match against Minyor Pernik in Sofia.
Serkan was included for the first time in the starting lineup of Botev Plovdiv during a goalless draw with CSKA Sofia on 11 May 2014.
Yusein scored his first goal for Botev Plovdiv on 23 September 2014. He came on as a substitute during the match and scored the last goal for the 0-4 away win against Lokomotiv Mezdra in the first round of the Bulgarian Cup tournament. A few days later, on 27 September, he came on as a substitute during the derby match with Lokomotiv Plovdiv which was won 2-0 by Botev Plovdiv. On 14 December  Serkan played 57 minutes and left good impression on the pitch during Botev's 1-0 defeat by Ludogorets Razgrad.
Serkan Yusein