On 1 July 2022, Ararat-Armenia announced the return of Mkrtchyan from a season loan to BKMA Yerevan.
[2] On 21 July 2023, Mkrtchyan joined NK Osijek on a season-long loan deal with an option to make the move permanent.
[3] On 23 January 2024, NK Osijek announced the permanent signing of Mkrtchyan on a contract until the summer of 2026.
[5] In March 2022, Mkrtchyan was called up to the senior Armenia national football team for the first time.
[6][7] Mkrtchyan made his international debut for Armenia national team on 24 March 2022 in a friendly match against Montenegro, where he played the full game.