After his playing career ended, Umanets began coaching children at
Metalurh Donetsk. In 2001 he joined
Olimpik Donetsk as children's coach and remained with the club until 2014. In 2005–06 season his team finished second in the U-15 championship. In August 2014 he tool his best players born in 2000 and joined
Torpedo Mykolaiv. On 1 July 2016 he was appointed as an Olimpik U-19 coach. He followed Klymovskyi to
Nyva Ternopil on 13 April 2021 as his assistant. He joined
Rubikon Kyiv as coach in August 2022. In late 2022 he became a manager for amateur club Tytan Kyiv. In summer of 2023 Umanets signed a one-year-long contract with
Lokomotyv Kyiv. He was fired on 25 September 2023 after gaining only four points in nine games. Two days later on 27 September he joined
Ukrainian First League club
Kremin Kremenchuk as an assistant to Klymovskyi. Umantes was an assistant in nineteen matches. On 20 June 2024 he joined
Nyva Ternopil as an assistant coach. ==Personal life==