Steven Wolfe Pereira joined MediaVest as senior vice president, managing director of Forty-Two Degrees. Most recently, he served as vice president of partnership marketing at Univision Communications.
Paul Hastings was promoted to executive vice president, director of account services at Y&R San Francisco.
Ira Helf has joined JWT North America as director of analytics for North America. Helf joins the agency from Draftfcb New York, where he served as executive director, data and analytics.
Initiative hired Raquel Krouse to head up the network's social media solutions division Prophesee as senior vice president, director. Krouse joined Initiative from IPG Emerging Media Lab, where she was vice president, practice lead, social media.
Tremor Media hired Angelo D'Agostino as vice president, human resources, in its New York City headquarters, replacing Kyle Carter who left the company.
AudienceScience hired Denise Colella as chief revenue officer.
Mediaedge:cia hired Star Kalatzan as managing director, responsible for IKEA, Novartis, YUM! and Toys'R'Us. Kalatzan joins MEC from Universal McCann, where she was senior vice president, managing director.
TBWA Worldwide announced that Neal Grossman would add the role of chief compensation officer to his current responsibilities as chief operating officer of TBWA/Chiat/Day's Los Angeles office.
Wieden+Kennedy hired Iain Tait as global interactive executive creative director effective April 1. Tait spent the past eight years as creative director and head of strategy for Poke in London, where he was a founding partner, working on clients such as American Express, Orange, Topshop, Yahoo and Zopa.
Optimedia US promoted Greg Kahn and Keith Mackay to executive vice presidents, and Chris Pyne to New York head of planning.
BBDO New York hired Mathias Appelblad, Toygar Bazarkaya and Ralph Watson as executive creative directors.
Campfire elevated Jeremiah Rosen to president. He recently served as partner & director of accounts.
Erwin-Penland promoted Andy Mendelsohn to senior vice president, executive creative director; Roger Beasley to senior vice president, director of strategic planning; and Renee Roberson to vice president, director of human resources.
Lotame Solutions opened a research and development office in Cambridge, MA to be headed by John Thomas, PhD, in the newly created position of Director of R&D. Previously, Thomas was a senior scientist at Crimson Hexagon.
AMP Agency named Jamie Graham as vice president, creative director. He joins the agency from Arnold Worldwide.
Digitas named Joe Lin as creative senior vice president for the agency's Stamford office.
Keith Pape joined Ayzenberg Group as vice president of social, mobile and emerging media.
Mark Nicholson and Mat Fox have joined AKQA as a senior creative team; they previously worked at TBWA London and WCRS. The duo will be working across all AKQA client accounts.
Firstborn hired Sandy Bell as planner & strategist and Justin Young as a motion designer. Bell joins Firstborn from Poke NY, where she was a project manager & strategist on clients like Sephora, Stella Artois and Dyson. Young comes from Domani Studios in NY, where he was a senior motion designer.
Q Interactive named Dale Baker as its chief executive officer.