Senior Associate, Direct Activation (Senior Buyer)
Location: Toronto, Canada · Category: Customer Success & Client Operations · Seniority: Senior · Posted: October 8, 2026 · Verified: Oct 8, 2026
Role Overview & Description
Track team expansion and market signals for GroupM
Polaris7 monitors open roles, strategic market movements, and M&A developments in real time. Get automated intelligence briefings on GroupM and benchmark against direct competitors.
GroupM
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This role is a cross-functional media investment position focused on TV, Radio, and Digital Direct buying. The Senior Associate, Direct Activation leads the end-to-end execution of media buys using MediaOcean, manages vendor relationships, and ensures accurate campaign delivery and billing reconciliation. The role leverages analytics tools like NLogic and Lens to evaluate audience trends and optimize campaign performance.
Cross-functional media investment role focused on TV, Radio, and Digital Direct buying. Manages vendor relationships, executes media buys, and leads campaign stewardship using MediaOcean for buy entry and billing reconciliation. Requires at least 2 years of media buying experience with hands-on proficiency in MediaOcean and knowledge of NLogic or Lens.
This role is a cross-functional media investment position focused on TV, Radio, and Digital Direct buying. The Senior Associate will lead end-to-end campaign execution using MediaOcean for buy entry, insertion orders, and billing reconciliation, while leveraging NLogic and Lens for audience analysis. Success requires at least 2 years of media buying experience, hands-on MediaOcean proficiency, and strong numerical and organizational skills.
This role supports the Direct Activation team in executing media investment strategies across offline and online channels, including broadcast, digital display, and CTV. Responsibilities include gathering marketplace intelligence, managing buy entry and trafficking, and monitoring campaign delivery, requiring strong analytical and organizational skills.
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