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 execution * Prevents high-risk and unready work from entering execution by enforcing rigorous readiness standards and driving accountability across customers, internal teams, and partners * Shapes executable commitments during late-stage sales and Day-0 planning by collaborating with cross-functional stakeholders and senior executives * Safeguards T-Mobile from financial and service-continuity risks by identifying and mitigating potential issues before service delivery commences * Provides authoritative guidance in high-visibility environments by engaging with senior executives and cross-functional teams to support decision-making, while driving end-to-end delivery * Drives accountability for readiness across internal teams, customers, and partners by establishing clear standards and monitoring compliance * Supports long-term customer outcomes and service stability by continuously improving readiness processes, standards, and toolsEducation and Work Experience: * Bachelor's Degree Business Administration, Project Management, or Related Field (Required) * Master's/Advanced Degree Business Administration, Operations Management, or Related Field (Preferred) * More than 10 years Managing complex B2B service delivery readiness, technical program management, or program management for large-scale technology, telecom, or media organizations, including validating customer and operational readiness prior to execution. (Required) * 4-7 years Leading cross-functional teams and driving accountability across internal stakeholders, customers, and partners to resolve dependencies and shape executable commitments in high-visibility environments. (Required) * 4-7 years Presenting complex risk, governance, and operational topics to senior executives, including communicating tradeoffs and driving alignment for decision-making in dynamic business environments. (Required)Knowledge, Skills and Abilities: * Problem Solving Ability to identify, assess, and resolve complex delivery readiness issues, dependencies, and risks in high-stakes B2B customer engagements. (Required) * Communication Strong written and verbal communication skills to convey authoritative guidance and readiness standards to senior executives, customers, and cross-functional teams. (Required) * Project Management Expertise in managing late-stage sales and Day-0 planning processes, ensuring all delivery prerequisites are met before execution. (Required) * Cross Functiona