After spending most of his career as a player and as a manager with Sportul Studențesc, in 2018 he became the coach of CFR II Cluj, and in 2019 he moved to FCSB to work as an assistant.
Andronache played professional football for only one club in his career, his former youth side Sportul Studențesc București.
After the bankruptcy of Sportul, Andronache took some young players and moved to Juniorul București, then to Viitorul Domnești, where he managed to end as runner-up in the Liga III.
From the last generation of Sportul, saved by Andronache by taking them to Juniorul, then to Domnești, a few names stand out, the likes of Octavian Vâlceanu, Paul Pațurcă, Bogdan Barbu or Mihai Dobrescu.
After a short spell at the second team of CFR Cluj, Andronache signed a contract with FCSB as an assistant coach, then, on 2 August 2019, he was named as the caretaker manager of the first squad, after the departure of Bogdan Andone.