In his early teens, Justin attended punk and ska shows at makeshift venues in his small town, eventually playing in bands in high school. Arriving in NYC in the late 90s, he started performing at and putting on shows and parties in the early Brooklyn DIY scene, starting to DJ in 2003. He soon became a resident DJ, booking person and the label manager at Nublu and the Music Director and a resident DJ at APT, two of the last bastions of underground dance music in the wake of 9/11, the 90s culture wars and the Giuliani crackdowns. Between 2009 and 2011, Justin and fellow DJ Eamon Harkin co-founded Mister Saturday Night and Mister Sunday, parties that happened mostly in friends’ loft spaces and back yards. In 2015, spurred by a need for more permanent space for their own parties as well as a desire to create space for the larger nightlife community, they opened Nowadays. Justin co-runs Mister Saturday Night Records, a label that's released music by Esteban Adame, Anthony Naples and Tygapaw, and he is the co-creator and director of a series called Planetarium, where people bring pillows, blankets and sleeping bags, lie in silence and listen deeply to music. As a musician, Justin has released an album of solo material called "The Leaves Fall" (2017) as well as collaborative EPs with The Twilite Tone and Move D. He also performed in the Chorus of Poets conducted by the late downtown experimental jazz musician Butch Morris.