[3] Nachev joined in Septemvri Sofia academy at an early age and gained media attention for first time in 2012 being called the Bulgarian Lionel Messi.
[4][5] In the end of 2013 he moved to Botev Plovdiv academy,[6] but just after few months he returned to Septemvri in 2014.
[8] Despite occasionally training with the first team,[9] in the end of June 2021, Nachev refused to sign a professional contract with Levski as he believed he didn't get enough chances.
[11] He scored his first league goal on 4 August 2021 in a match against his youth team of Septemvri Sofia.
[13] After the promote to Bulgarian First League, Nachev lost his position in the starting team.