Senior Director, Media Strategy & Client Growth

Kantar Group is seeking a Senior Director of Client Service in a hybrid role spanning Atlanta, Boston, Chicago, New York City, and Norwalk. The position combines senior client advisory with deep media effectiveness research expertise to shape client outcomes and multi-year growth. The role leads high-value accounts, influences media investment decisions, and directs complex programs such as brand lift, attribution, and segmentation while ensuring operational excellence and scalable delivery.