Own lifecycle marketing strategy and execution across onboarding, activation, upgrades, retention, and win-back programs. Build and optimize HubSpot workflows, segment and personalize communications, run experiments, analyze cohorts and funnels, and report results. Lead lifecycle requirements for an email platform and user-profile migration while monitoring deliverability, consent, suppression, and engagement metrics. Partner cross-functionally with Marketing Operations, Product, Engineering, Sales, and Customer Success.