On 14 June 2016, Minchev signed with the returning on the top-level team of CSKA Sofia[3] He made his debut for the CSKA II team on 7 August 2016 in a match against Sozopol, won by CSKA II with 2–0 result.[4] A week later he completed his debut for the first team in a league match against Neftochimic Burgas.[5]
Slavia Sofia
Three months after he joined CSKA and a single appearance for the first team, Minchev moved to Slavia Sofia.[6] He made his debut for the team in a league match on 10 September 2017 against Lokomotiv Plovdiv won by Slavia with 5–2 result.[7] In the league match against Vereya played on 1 October he scored his first goal for the club.[8] On 15 April 2017, Minchev was named as Man of the Match in the league match against his ex club Montana.[9]
On 28 November 2017, Minchev was awarded as Man of the Match in the league match against Cherno More where he scored the first goal for the 2–0 win.[10] Minchev ended his first half of the 2017–18 season with 5 goals and 5 assists in 19 league matches, attracting interest from Russian and Kazakhstan clubs.[11]
On 2 November 2017, Minchev received his first call-up for Bulgaria for the friendly game against Saudi Arabia.[13] 11 days later he made his debut for the national side in a match, coming on as a substitute in added time of the second half.[14] In August 2024, Minchev was once again called up, being selected by manager Ilian Iliev for the September UEFA Nations League matches against Belarus and Northern Ireland,[15] earning his second cap against the former.