[4] Senior began his advertising career at BWBC & Co before moving to D’Arcy Masius Benton & Bowles (DMB&B) for five years (1989-1994) as an account director, predominantly on Procter & Gamble.
He then joined Simons Palmer, later to become part of TBWA Worldwide, where he was a client services director from 1994-1998[5] In 1998,Senior became a founding partner of Fallon London,[6] creating an agency that launched several award-winning campaigns including: “Balls” for Sony Bravia TVs[7] and Skoda "Cake Car".
In 2007, their “Gorilla” commercial for Cadbury Dairy Milk[10] was awarded Campaign’s “Campaign of the Year,” with the magazine citing the spot’s “impact on both the advertising industry and on the public imagination.” The commercial went on to win the Grand Prix award in film at the Cannes International Advertising Festival.
During that time, the agency’s “Life Is For Sharing”[13] T-Mobile campaign spot “Dance,” about a “flash mob” that transformed London’s Liverpool Street Station into a giant dance party,[14] was awarded the TV Commercial of the Year accolade at the British Television Advertising Awards[15] and generated nearly 150 million YouTube views.
[23] He has taught in Austria, Switzerland, and France, and is a partner of an alpine property business in the French Alps.