On 28 February 2023, Mkrtchyan returned to BKMA Yerevan on loan for the remainder of the 2022/23 season.[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.[4]
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.[8][9]