Sachenko was born in 1977 in Alma Ata, the capital of the Kazakh Soviet Socialist Republic (now Kazakhstan).

[2] In 1995, Sachenko participated in the 3rd International Violin Competition Leopold Mozart, where he finished in 4th place and won the Audience Prize.

[3] At the age of 21, he was named the top violinist at the 11th International Tchaikovsky Competition in 1998, playing a violin made by the 18th-century French luthier Jean-Baptiste Salomon [de].

[2][5] Sachenko has been a member of the Brahms Trio since 2008, performing with the pianist Natalia Rubinstein and the cellist Kirill Rodin.

As of 2021, Sachenko plays a violin made by the Italian luthier Francesco Rugeri in 1697 that belongs to Russia's State Collection of Unique Musical Instruments.