• Design and lead a high-velocity A/B and multivariate testing roadmap across channels, campaign types, ad creatives and audience segments. • Provide data-backed briefs that tell Channel Managers exactly where to pivot spend based on test winners. • Go beyond standard reporting to "mine" data for untapped growth levers. Identify patterns that haven't been scaled and propose the business case for expansion. • Stay at the bleeding edge of ad platform capabilities (Google, Meta, LinkedIn). Experiment with "alpha/beta" features to ensure our stack is consistently ahead of industry benchmarks. • Continuously refine our multi-touch attribution (MTA) and Media Mix Modeling (MMM) models to measure the incremental impact of non-linear B2B buyer journeys. • Partner with Analytics Engineering to build clean, scalable data models in Snowflake (via dbt) that specifically track experiment lift and incrementalities, and present their performance metrics in dashboard.