Rossignol is an author, game designer, and publisher. He is one of the four founder members of the PC gaming site, Rock, Paper, Shotgun, which began in 2007.

More recently he worked with the Big Robot team to create the dark comedy stealth and survival game, Sir, You Are Being Hunted.

Rossignol previously worked for PC Gamer, as well as writing for outlets such as the BBC, Wired, and Eurogamer.