Own the post-sale lifecycle for a book of SaaS accounts, including onboarding, adoption, retention, renewals, and expansion. Maintain Salesforce and Vitally hygiene, audit product usage, configure workflows, train customers, run account plans, identify and close expansion opportunities, and proactively manage renewal risk. Build multi-stakeholder relationships, operate BigTime’s AI agent stack, and partner with technical engineers on adoption. The role requires commercial ownership, product fluency, financial prioritization, proactive account management, and comfort working in an evolving operating model.