Sashko was born in Kyiv into a family of artists. He graduated from the Mykhailo Boichuk Institute of Decorative and Applied Arts and the National Academy of Fine Arts and Architecture in Kyiv. He has dedicated himself to the fields of book illustration, comicbooks, periodicals, animation, board games, the gaming industry, and films as an artist, art director, and production designer.

Sashko is the founder of the Ukrainika project, as well as a co-founder of the Comicsoda community and the Illustractor educational community. He now works at the Museum of the Revolution of Dignity and continues to create illustrations, prints, and graphic novels.