He attended Danbury High, where he was in charge of the theatre program's technical design as a senior.

[5] Hylenski's first professional role was at age 18 as the sound designer for a Las Vegas run of Starlight Express.

[6] Early in his career, Hylenski worked in sound design both in the United States and abroad, with credits in Broadway, West End, and Cirque du Soleil productions.

[4] In addition to his win for Moulin Rouge!, Hylenski has been nominated for a Tony Award for Once on This Island, After Midnight, Beetlejuice, King Kong, Motown: The Musical, Rock of Ages, and The Scottsboro Boys.

He is married to Suzanne Hylenski, a dancer and wellness coach from Essex in the United Kingdom, whom he met while working as an associate sound designer on a European tour of Fosse.