VP, Roundel at Target
Leading Roundel's transformation into one of the most sophisticated retail media networks in the U.S., with a particular focus on programmatic off-site expansion and closed-loop measurement capabilities.
Last updated Feb 27, 2026 by AI Enrichment
Melanie Zimmermann leads Roundel, Target's retail media network and one of the most prominent in the United States, sitting at the intersection of retail, data, and digital advertising. Under her leadership, Roundel has evolved from a primarily on-site advertising business into a full-funnel media offering that leverages Target's rich first-party shopper data to connect brands with consumers across owned, operated, and programmatic channels. Her work has helped position Target as a credible competitor to Amazon Advertising and Walmart Connect in the rapidly consolidating retail media landscape. Zimmermann has been a key architect of Roundel's expansion into off-site programmatic advertising, enabling brand partners to reach Target shoppers beyond Target's own digital properties through partnerships with major publishers and DSPs. She has also prioritized building robust measurement and attribution frameworks — a critical differentiator in retail media — that give advertisers clearer line-of-sight into how Roundel investments drive actual sales outcomes. This focus on closed-loop measurement has been central to Roundel's value proposition for CPG and brand partners. Her tenure reflects a broader industry shift in which major retailers are monetizing their first-party data assets as third-party cookies deprecate and signal loss accelerates across the open web. Zimmermann's strategic emphasis on data-driven targeting, programmatic scale, and transparent measurement has made Roundel a frequently cited case study in how retail media networks can mature beyond simple sponsored product placements into sophisticated, brand-safe advertising ecosystems.
Target
Target