On 19 October 2014, Kazakov came on as a substitute and made his debut in A Group during the 3-1 defeat against Lokomotiv Sofia.
[6] On 2 March 2015 Hristiyan Kazakov scored his first goal for Botev Plovdiv in extra time during the 3-0 win over Marek Dupnitsa.
[8][9] On 23 May Kazakov came on as a late substitute but his efforts were not enough to change the score and Botev Plovdiv lost the away game versus Beroe Stara Zagora with 1-2.
[10] On 30 October Hristiyan Kazakov made his first appearance in season 2015-16 during the 2-0 away defeat from Slavia Sofia.
[11] In January 2016 Kazakov's contract was terminated by mutual agreement and he left Botev Plovdiv.