Early career Born in
Plovdiv, Terziev began his career at the
Spartak Plovdiv academy but moved to
Botev Plovdiv along with
Lazar Marin, Lachezar Angelov and Rosen Andonov in January 2012. He then spent one and a half seasons on loan at second-tier
Rakovski. He scored his first goal in senior football in a 3–0 win over
Akademik Svishtov on 10 November 2013. Terziev totalled 39 appearances in all competitions for Rakovski.
Botev Plovdiv After returning from his loan spell, Terziev made his Botev debut on 3 July 2014, in a 4–0 win over
Libertas in the first leg of the first qualifying round of the
UEFA Europa League. He played the full 90 minutes. Terziev made his
A Group debut in a 1–0 home win against
Lokomotiv Sofia on 20 July, appearing as a 69th-minute substitute for
Milen Gamakov. One month later, he made his first league start in a game against
Slavia Sofia. During the second half of season 2015–16, Terziev became a regular central defender in the starting lineup of
Botev Plovdiv. On 22 October 2016, Terziev scored a goal after an assistance from
Todor Nedelev during the 2–3 home defeat from
Cherno More Varna. On 24 May 2017, Terziev played an important role in the historical 2–1 win over
Ludogorets Razgrad in the
Bulgarian Cup final and won the cup with
Botev Plovdiv. On 16 June 2017, he signed a new two-year contract. ==International career==