Own and grow a major global enterprise account through onboarding, adoption, renewals, upsell, and cross-sell. Develop multi-year account strategies, deliver expansion ARR, conduct executive business reviews, coordinate cross-functional teams, identify adoption and churn trends, and maintain Salesforce forecasting. The role requires consultative enterprise account management, C-suite relationship management, complex expansion experience, and familiarity with AI/ML, SaaS, cloud, or data platforms.