Born in Germany and raised in Venezuela, Bilous attended Temple University, where he played on the men's soccer team from 1967 to 1969.
[3] In 1978, he was named the head coach of the newly established Cincinnati Kids of the Major Indoor Soccer League.
Although Bilous took the Spirit into the playoffs, the team faced financial difficulties and spent the 1980–81 season on hiatus.
[6] Following the conclusion of his MISL coaching career, Len founded Vision Training Soccer.
[citation needed] In 2020 Len Bilous and TJ Kostecky, his business partner in Vision Training Soccer, were inducted into the Ukraine Sports Hall of Fame.