This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Sr. Manager, Commercial Customer Success based in United States. This is a senior customer success leadership role focused on building and scaling a high-performing team serving commercial customers across the East Region. You will lead Customer Success Managers responsible for onboarding, adoption, customer value, retention, and expansion across a portfolio of complex accounts. The role combines people leadership with strategic influence over customer success methodologies and go-to-market execution. You will help shape repeatable approaches for implementation, portfolio prioritization, risk management, and long-term customer outcomes. Close collaboration with Sales, Product, Marketing, Revenue Operations, and Account Management will be essential to delivering a consistent customer experience. You will work in a fast-moving, technology-driven environment where data, emerging technologies, and responsible AI use inform decision-making. This is an opportunity to make a significant impact on both customer outcomes and the evolution of a growing Customer Success organization.