John O'Brien - is a video game producer and programmer. John O'Brien began his career in 2005 and has worked for companies such as Sumo Digital, Sony Computer Entertainment, Feral Interactive, Warner Bros. Interactive, Traveller's Tales, Ubisoft Montreal, Red Storm and Ubisoft Entertainment. John O'Brien's first game was Tom Clancy's Rainbow Six: Lockdown which was released 16 years ago. Best Game John O'Brien contributed to was LittleBigPlanet 3. John O'Brien's latest work is LittleBigPlanet 3 which was released 6 years ago.