Between 2003 and 2009, Oberlin worked as a game tester at Activision, testing popular video game titles including Call of Duty, Call of Duty: World at War, Guitar Hero World Tour, X-Men Legends, 007: Quantum of Solace, and Spider-Man: Web of Shadows.

[5] Between 2003 and 2005, Oberlin joined rocker Jennifer Finch's band The Shocker touring Europe and the United States as lead guitar and second vocals.

Oberlin co-wrote the band's album Genocide Chapters for Metal Blade Records under the stage name Volkar Kael.

[7] Following his time with Dawn of Ashes, Oberlin joined the band Stolen Babies featuring Gil Sharone of Marilyn Manson/The Dillinger Escape Plan fame.

[15] From 2022 to 2024, Oberlin sang second vocals and played keyboard for heavy metal band Five Finger Death Punch, including for the Metallica 72 stadium shows.