You will own tag governance end to end: intake and requirements for new vendor tags, implementation and QA in the tag management system across dev/QA/production environments, validation that business-as-usual tags continue to fire and collect after every website release, and the campaign parameter and tracking specifications that make downstream measurement and attribution possible. Translate marketing measurement requirements into technical tracking specifications - partnering with Marketing, Product, and Analytics to turn a campaign or experiment plan into a documented spec covering data layer fields, tag management variables, analytics dimensions and events, and vendor payloads.