Principal Business Development Manager

Location: Bellevue, Washington

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!

** This is not a remote position. T-Mobile is a hybrid work environment requiring work in the office three (3) days per week. The successful candidate will be located in either Seattle, Washington or Frisco, Texas areas.**

Job Overview

The Principal Business Development Manager at T-Mobile drives the identification and execution of transformative, enterprise-level partnerships that extend the company's reach beyond traditional telecom markets. This role shapes strategic direction by collaborating with executive stakeholders and providing actionable insights that influence long-term business decisions. By guiding cross-functional teams through complex and ambiguous challenges, ensures alignment and successful delivery of innovative business opportunities.

The position serves as both a strategic architect and execution leader, mentoring peers and fostering scalable partnerships that strengthen T-Mobile's competitive advantage. Through these efforts, the role directly supplies sustainable growth, resilience, and the expansion of T-Mobile's ecosystem.

Job Responsibilities

• Originate, structure, and lead end-to-end execution of large-scale, highly complex, and often non-standard strategic partnerships that drive enterprise growth, competitive differentiation, and entry into new markets.
• Proactively identify, create, and develop new business opportunities by synthesizing market trends, emerging technologies, customer needs, and ecosystem dynamics—often in ambiguous or undefined spaces.
• Partner with senior and executive-level stakeholders to frame critical business decisions, align on strategic direction, and influence outcomes through clear, data-driven recommendations.
• Establish and deepen senior-level relationships with key external partners and internal stakeholders to unlock new opportunities, drive deal momentum, and enhance long-term partnership value.
• Build deep expertise in priority sectors and emerging areas (e.g., proprietary technologies, new adjacencies), and translate insights into actionable strategies that inform company direction.
• Guide cross-functional teams through ambiguity to evaluate, structure, and operationalize opportunities—ensuring alignment across Product, Technology, Legal, Finance, and Marketing.
• Bachelor's Degree and 7 years of related work experience
• Additional Locations: Frisco, Texas