seilheimerJess Seilheimer, formerly senior VP/innovation & strategic planning at France's Havas, is now chief strategy officer at MWW in its New York outpost.

CEO Michael Kempner hailed Seilheimer as "a true rock star of our industry."

The 15-year veteran takes command of MWW's marketing communications and strategic planning capabilities.

At Havas, Seilheimer developed new revenue-generating opportunities and led its health & wellness digital marketing practice.

She has counseled Bausch & Lomb, Pfizer, Sanofi, Genentech, Walgreens, Nestle and AstraZeneca.

Most recently, Seilheimer ran her own consulting firm, Cretegic, which focused on digital business transformation for established consumer brands/services and start-ups.

Jersey-based MWW is O'Dwyer's No. 6 independent firm with 2013 fees of $48M.