Principal Vendor Manager

The Principal Vendor Manager is a senior individual contributor responsible for maximizing the performance, value, and resilience of T-Mobile’s strategic technology partners. The role monitors vendor performance, financial health, security posture, and regulatory compliance to identify risks and ensure operational continuity. It partners with Procurement, IT, Finance, Legal, and business teams to align vendor relationships with T-Mobile’s digital transformation and customer experience objectives. The position also serves as a subject matter expert and peer leader promoting vendor management best practices across the organization.