Lead the lifecycle marketing function across mobile apps, subscriptions, and ecommerce. Own customer journeys, activation, conversion, retention, renewal, and win-back programs. Develop personalized email, SMS, push, and in-app communications; establish funnel KPIs; analyze cohorts and experiments; and partner with Product, Engineering, Data, and Design to improve customer engagement and revenue. Manage Customer.io, segmentation, personalization, messaging quality, and the lifecycle roadmap from strategy through execution.