Alexey Melnikov was born in Moscow in 1990. He started his music education at Gnesin Music High School (class of Prof. Tatiana Shklovskaya). Alexey has performed at numerous national and international youth music competitions, including the Carl Czerny competition in Prague, where he won the 2nd award.

In 2008 he carried on with his education at Moscow Conservatory (class of Prof. Sergey Dorensky) and also studied under the guidance of Prof. Dorensky's assisstants: Nikolay Lugansky, Pavel Nersisian and Andrey Pisarev. During his college years Sergey won a number of international competitions, including International Véra Lautard Competition in Novosibirsk (2nd Prize), Cantù (Italy, 1st Prize), San Marino (1st Prize, Audience awards, Critcs and Orchestra awards) and Hamamatsu (Japan, 3rd Prize).

The musician performed together with Belgorod and Tomsk Philharmonic Society orchestras, Veliky Novgorod Philharmonic Society Chamber Orchestra,  Prague Virtuosos Chamber Orchestra, Bacău Philharmonic Orchestra (Romania), Republic of San Marino Symphony Orchestra, Tokyo Symphony Orchestra and other ensembles. Alexey played as a solo performer across venues in Russia, USA, Germany, Italy, France, Belgium, Japan, including the Grand Hall of Moscow Philharmonic Society, Salle Cortot in Paris, Tokyo Bunka Kaikan, Palác Žofín in Prague and Teatro La Fenice in Venice. The musician took part in international music competitions in Italy and France, performed at Heinrich Neuhaus Festival and Romantic Music Festival in Moscow.

In 2017 Alexey Melnikov won the Manhattan International Music Competition in NYC having performed on stage of the world-famous Carnegie Hall. Same year the musician released a solo album with pieces by Beethoven and Liszt on ACOUSENCE Records label. In June 2019 the musician won the 3rd Prize and Bronze Medal at 16th International Tchaikovsky Competition.