 McKellar worked as a producer and sound engineer at Hardboiled Productions (1996-2010).He has also worked with many rock bands such as Dirty Three, The Mark Of Cain, Frenzal Rhomb, The Butterfly Effect, Kisschasy, Ash, The Sunpilots, Tumbleweed, Nitocris, One Dollar Short, The Getaway Plan, The Hot Lies, Crash Arcadia and Chasing Gravity.He then worked at ABC Radio National as an audio engineer, and now at Double J.