They coordinate with carriers, stop-loss providers, and third-party administrators to manage billing, premium reconciliation, risk corridors, and funding-related reporting; support cost-modeling and scenario analysis during renewals; and help clients weigh trade-offs between cash flow, risk exposure, and plan flexibility when evaluating funding strategies. The Senior Client Manager also oversees enrollment and renewal processes, confirming benefits, rates, and employee contributions, coordinating with benefits administration or enrollment vendors, arranging carrier training for client HR teams, and preparing benefit guides and presentations for open enrollment.