Principal Service Delivery Readiness Manager

At T-Mobile , we invest in YOU! Our Total Rewards Package ensures that employees get the same big love we give our customers. All team members receive a competitive base salary and compensation package - this is Total Rewards. Employees enjoy multiple wealth-building opportunities through our annual stock grant, employee stock purchase plan, 401(k), and access to free, year-round money coaches. That’s how we’re UNSTOPPABLE for our employees! Job Overview The Principal Service Delivery Readiness Manager ensures that complex B2B customer engagements are fully delivery-ready before execution begins, protecting T-Mobile from financial and service-continuity risks. This role operates upstream of Service Delivery, validating customer readiness, resolving dependencies, and shaping executable commitments during late-stage sales and Day-0 planning. By enforcing rigorous readiness standards and driving accountability across customers, internal teams, and partners, the role prevents high-risk, unready work from entering execution. The Principal Service Delivery Readiness Manager engages with senior executives and cross-functional stakeholders to provide authoritative guidance in high-visibility environments. Through these efforts, the role safeguards revenue, service stability, and long-term customer outcomes for T-Mobile . Job Responsibilities : Ensures complex B2B customer engagements are fully delivery-ready by validating customer readiness and resolving dependencies prior to executi