Carr, who is both a writer and an art director, will work as a creative "one-man band across the MCBD accounts and take responsibility for the creative department in the absence of the creative directors, Paul Briginshaw and Malcolm Duffy.
His appointment is the result of a brief put out to headhunters by the agency for a creative heavyweight in the wake of a series of recent new-business wins.
They include the Calvin Klein men's toiletry brand, Addiction, Splenda, a new sweetener launched by McNeil Consumer Nutritionals, and the Inland Revenue's £3 million self-assessment awareness campaign.
Carr, who joined AMV in September 1998, has been a regular silver winner at the Campaign Poster Awards with his work for The Economist and Guinness Extra Cold.
His Guinness work also picked up a silver Pencil at this year's D&AD Awards.
"After our recent wins we felt the time was right to add a string and safe pair of hands, Briginshaw said. "Having Jeremy around will free up Malcolm and I to do what we love doing most, and that's producing ads."
Carr began his career at Ted Bates - beginning a long association with the writer Jeremy Craigen - and followed the agency into its merger with Dorlands.
He later spent five years at BMP DDB where his award-winning campaigns included the "extra mild ads for Volkswagen, which won six prizes at the 1994 National Newspaper Campaign Awards.
After brief spells at Lowe Howard-Spink and WCFS, Carr joined Bartle Bogle Hegarty, where he worked on One2One and Levi's.
Carr said: "It's exciting to join a young agency that is already on its way to being the best agency in town."
Briginshaw said: "Jeremy's real talent is his ability to do what every good creative should be able to do, namely, create campaigns. He doesn't just do one-offs."