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 We are seeking an experienced and strategic leader to be the Senior HR Program Manager under the HR Mergers & Acquisitions PMO (M&A) at T-Mobile. In this role, you will lead the Human Resources (HR) Program Management Office (PMO) to oversee and implement strategic HR initiatives tied to the successful integration of companies at various stages of M&A activity. At any given time, T-Mobile's HR team manages multiple mergers of varying complexity, size, and industry alignment. This is a great opportunity to shape the people, culture, and organizational outcomes of T-Mobile's growth strategy by integrating acquired talent and maintaining compliance and alignment across HR functions. You will need a strategic vision, operational expertise, and leadership savvy to engage partners, mitigate risks, and deliver results. * This is a hybrid role (3 days/week in the office) and can be based in Bellevue, WA, Overland Park, or Frisco, TX ** Job Responsibilities: Partner with HR leadership, legal, and cross-functional M&A teams to define strategic HR objectives for mergers and acquisitions. Design, implement, and lead HR integration plans, including employee onboarding, compensation harmonization, benefits integration, and cultural alignment. Establish timelines, dependencies, and actionable roadmaps to enable seamless integration of acquired organizations. Develop robust program management tools, dashboards, and processes for tracking integration milestones and risks. Create, implement, and oversee governance frameworks to manage HR due diligence, execution, and post-integration evaluations. Report program progress, risks, and results to T-Mobile's HR and executive leadership teams. Align HR processes with broader M&A objectives, maintaining compliance with legal, financial, and corporate guidelines. Manage contracts, budgets, and third-party vendors involved in delivering critical components of mergers and acquisitions. Serve as the primary HR liaison for all M&A activities, collaborating with senior leadership and partners across the organization, providing guidance and solutions. Facilitate cross-functional collaboration to address integration challenges, prioritize objectives, and align strategic goals. Deliver clear, concise, and timely communications to leadership and staff impacted by M&A activities. Lead HR change management strategies, ensuring consensus and adoption of new policies, systems, and cultural norms. Create and implement employee engagement initiatives to integrate talent, address retention risks, and promote alignment with T-Mobile's values. Oversee organizational design and workforce transition efforts, including redeployment and outplacement programs as needed. Build and mentor a high-performing HR M&A program team to manage concurrent projects across multiple companies. Foster a culture of innovation, accountability, and continuous improvement within the HR PMO. Provide strategic guidance and operational support to HR leaders and their teams throughout the integration lifecycle. Qualifications: Bachelor's degree in Human Resources, Business Administration, or a related field. 8+ years of experience in HR program management or project management, with at least 3 years focused on mergers, acquisitions, or divestitures. Demonstrated success in managing large-scale HR integration initiatives with cross-functional teams. Expertise in project manag