Poghosyan was born in Yerevan in 1965. He was the first musician in his family, with his mother and father being veteran engineers and his brother being in that field currently.[2] He studied at the Tchaikovsky Secondary Music School in the capital for 8 years. In 1984, he graduated from the Musical College named after Romanos Melikian. After graduating from the college, he worked as an orchestra artist at the Yerevan Opera Theatre.
From 1985 to 1990, Poghosyan completed his studies at the Department of Military Conductors of the Moscow Conservatory where he received his certification as a military conductor. In 1990, he joined the Soviet Armed Forces becoming an official conductor for the bands of the Transcaucasian Military District. In 1992, he resigned from his position in the Soviet Army, and was invited to lead the newly formed Band of the General Staff of the Armed Forces of Armenia. He served in various leadership positions in the band until 16 February 2002, when he became the Commander and the Senior Military Director of the band division.[3][4][5]
On 25 February 2021, he was one of 40 top Armenian officers who signed a statement drafted by Chief of the General Staff Onik Gasparyan calling for the resignation of Prime Minister Nikol Pashinyan.[6][7]
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