In 2006, after graduating from University, Gubman co-composed, along with composer Jeff Kurtenacker, the soundtrack for the videogame "Pirates of the Burning Sea", a massively multiplayer online role-playing game developed by Flying Lab Software and published by Sony Online Entertainment. Gubman then worked as a contract composer for "SomaTone Interactive Inc." and "Non-Stop Music". Since then, his work has been featured on hundreds of videogames (of which many are published by well-known software houses), TV commercials, TV news packages, etc. Gubman's notable collaborations include singer Traci Hines, violinist Taylor Davis, composer Austin Wintory and the "". As a contract composer, Gubman has written for NBC television broadcasts of the 2012 Winter Olympics, the 2012 Presidential Election and the 2011 Royal Wedding.