T-Mobile Executive and Leadership Team

June, 2026

Leadership Overview

T-Mobile has 10 executives leading key functions including strategy, finance, technology, and operations.

Driven by customer-centric innovation, T-Mobile is dedicated to transforming the wireless industry through aggressive competition and superior network performance, impacting millions of lives across the United States.

Leadership Roles at T-Mobile

  • Wireless, Llc Chief Financial Officer & General Manager I - Sean Cullen
  • President of Technology & Chief Technology Officer - John Saw
  • President - Ju Chi
  • President - Przemek Grunwald
  • Coordinator, Office Of The President - Kim Stafford
  • Chief of Staff - Awantika Puranik
  • Chief of Staff & Senior Consultant, HR Strategy - Jessica Higgins
  • Director, Chief of Staff - Jay Patacsil
  • Director, Chief of Staff, OCFO - Sarah Jindra
  • Chief of Staff & Strategy & Planning Executive - Jerod Button
  • Sean Cullen - Wireless, Llc Chief Financial Officer & General Manager I

    Sean Cullen, the Wireless, Llc Chief Financial Officer & General Manager I at T-Mobile, oversees the financial health and operational management of the company's wireless division. Cullen directs fiscal strategy, resource allocation, and P&L management, ensuring robust financial performance and sustainable growth. This leadership position involves close collaboration with executive teams to align financial objectives with T-Mobile's broader strategic goals in the competitive US telecom market. Sean Cullen's expertise drives profitability and operational efficiency, supporting T-Mobile's commitment to delivering value to customers and stakeholders through advanced wireless solutions. The scope of this role encompasses driving key business decisions that impact market share and revenue generation across the United States, Puerto Rico, and the U.S. Virgin Islands.

    John Saw - President of Technology & Chief Technology Officer

    John Saw, the President of Technology & Chief Technology Officer at T-Mobile, architects and directs the company's technological vision and infrastructure. Saw leads the development and deployment of T-Mobile's advanced wireless network, ensuring superior performance, reliability, and innovation across the United States, Puerto Rico, and the U.S. Virgin Islands. This executive role is pivotal in driving T-Mobile's technological superiority, enabling the delivery of next-generation voice and data services. John Saw's strategic leadership ensures T-Mobile remains at the forefront of telecommunications technology, supporting its mission to connect customers through a powerful and expansive network. The focus is on leveraging cutting-edge technology to enhance customer experience and expand market reach.
    John Saw

    Ju Chi - President

    Ju Chi, the President at T-Mobile, directs significant operational segments and strategic growth initiatives within the company. Chi oversees key business functions, ensuring alignment with T-Mobile's mission to provide leading wireless voice and data services across its operational territories. This leadership position is vital for driving market penetration and enhancing customer value through innovative service offerings. Ju Chi's focus is on optimizing performance across various business units, contributing directly to T-Mobile's sustained success and expansion in the competitive telecommunications industry. The role involves steering strategic direction to maintain T-Mobile's position as a market leader.

    Przemek Grunwald - President

    Przemek Grunwald, the President at T-Mobile, leads critical business operations and strategic development for the company. Grunwald directs efforts to enhance T-Mobile's service offerings and expand its market reach, ensuring the delivery of high-quality wireless voice and data services. This executive role is essential for driving operational excellence and fostering innovation within the organization, supporting T-Mobile's commitment to customer satisfaction and market leadership. Przemek Grunwald's strategic oversight contributes significantly to T-Mobile's ability to adapt and thrive in the rapidly evolving telecom landscape. The emphasis is on strategic execution and operational efficiency to achieve T-Mobile's corporate objectives.

    Kim Stafford - Coordinator, Office Of The President

    Kim Stafford, the Coordinator, Office Of The President at T-Mobile, provides essential support for presidential operations and strategic coordination. Stafford facilitates communication and manages administrative functions critical to the smooth operation of the President's office, ensuring T-Mobile's executive directives are efficiently processed. This role is key in supporting the strategic planning and execution of initiatives that drive T-Mobile's mission forward in the wireless communications sector. Kim Stafford's contributions are vital for maintaining organizational efficiency and supporting the leadership's efforts to enhance T-Mobile's market position and service delivery. The focus is on ensuring seamless workflow and effective support for presidential activities.

    Awantika Puranik - Chief of Staff

    Awantika Puranik, the Chief of Staff at T-Mobile, directs strategic initiatives and operational alignment across key departments. Puranik ensures seamless execution of executive directives, facilitating cross-functional collaboration to advance T-Mobile's market leadership in wireless communications. This role involves managing critical projects and driving efficiency within the executive office, directly supporting the company's mission to provide unparalleled wireless services. The focus remains on optimizing internal processes and enhancing strategic planning to meet evolving market demands. Awantika Puranik's leadership ensures that high-level objectives translate into actionable plans, contributing to T-Mobile's dynamic growth and operational excellence.

    Jessica Higgins - Chief of Staff & Senior Consultant, HR Strategy

    Jessica Higgins, the Chief of Staff & Senior Consultant, HR Strategy at T-Mobile, spearheads human resources strategy and organizational development initiatives. Higgins drives the implementation of HR programs designed to enhance employee engagement, talent acquisition, and retention, directly supporting T-Mobile's operational backbone. This critical role ensures that HR strategies align with the company's aggressive growth objectives and its commitment to fostering a diverse and inclusive workforce. Jessica Higgins's contributions are vital in shaping T-Mobile's culture and ensuring its human capital effectively supports the delivery of cutting-edge wireless services across its service areas. The focus is on building a high-performing organization capable of navigating the complexities of the telecom industry.

    Jay Patacsil - Director, Chief of Staff

    Jay Patacsil, the Director, Chief of Staff at T-Mobile, manages strategic projects and operational workflows within the executive leadership team. Patacsil ensures the efficient coordination of cross-functional initiatives, driving T-Mobile's agenda forward in the dynamic telecommunications sector. This position involves facilitating communication and alignment among various departments, directly contributing to the company's ability to execute its ambitious growth plans and maintain its competitive edge. Jay Patacsil's role is instrumental in translating high-level vision into tangible operational outcomes, supporting T-Mobile's mission to deliver superior wireless voice and data services. The focus is on enhancing organizational effectiveness and driving strategic execution across the enterprise.

    Sarah Jindra - Director, Chief of Staff, OCFO

    Sarah Jindra, the Director, Chief of Staff, OCFO at T-Mobile, provides strategic support and operational oversight for the Office of the Chief Financial Officer. Jindra ensures alignment between financial operations and T-Mobile's overarching business objectives, facilitating efficient resource management and strategic decision-making. This role is critical in optimizing financial processes and driving key initiatives that support the company's growth and profitability in the competitive telecom landscape. Sarah Jindra's leadership contributes to the financial stability and operational effectiveness of T-Mobile, reinforcing its commitment to delivering exceptional wireless services. The focus is on enhancing financial planning and execution to support T-Mobile's market expansion and service delivery.

    Jerod Button - Chief of Staff & Strategy & Planning Executive

    Jerod Button, the Chief of Staff & Strategy & Planning Executive at T-Mobile, drives strategic planning and execution across the organization. Button ensures that T-Mobile's strategic initiatives are effectively translated into actionable plans, fostering alignment and driving progress towards key business objectives. This role involves coordinating efforts across various departments to enhance operational efficiency and support the company's ambitious growth trajectory in the wireless sector. Jerod Button's leadership is crucial in navigating the complexities of the telecom market, ensuring T-Mobile maintains its competitive advantage and commitment to customer satisfaction. The focus is on strategic foresight and meticulous planning to achieve T-Mobile's long-term vision.

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    Frequently Asked Questions Regarding T-Mobile Top Executives and Leadership Team

    Who leads T-Mobile?
    T-Mobile is led by Sean Cullen (Wireless, Llc Chief Financial Officer & General Manager I), along with executives such as John Saw (President of Technology & Chief Technology Officer) and Ju Chi (President).
    Who is part of T-Mobile’s executive team?
    The executive team of T-Mobile includes leaders such as Sean Cullen (Wireless, Llc Chief Financial Officer & General Manager I), John Saw (President of Technology & Chief Technology Officer), Ju Chi (President) and other senior executives.
    How many executives does T-Mobile have?
    T-Mobile has 10 executives leading key business areas.
    What roles are included in T-Mobile’s leadership team?
    The leadership team of T-Mobile includes roles such as Wireless, Llc Chief Financial Officer & General Manager I, President of Technology & Chief Technology Officer, President, President, Coordinator, Office Of The President.