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Leslie Koutroulis

Job Title: VP, Financial Planning and Analysis
Company: T-Mobile
Industry: Telecommunications
Mentor Since: Fall 2023
Will Mentor: Undergraduate Students, Graduate Students, Early Career MBA
Mentor Type: Albers


Job Description

Senior Finance Leader responsible for short and long-term financial planning for Technology organizations at T-Mobile. Proven track record of success in increasingly demanding and responsible high-profile positions with an emphasis in financial leadership.

Company Description

T-Mobile U.S. Inc. (NASDAQ: TMUS) is America’s supercharged Un-carrier, delivering an advanced 4G LTE and transformative nationwide 5G network that will offer reliable connectivity for all. T-Mobile’s customers benefit from its unmatched combination of value and quality, unwavering obsession with offering them the best possible service experience, and undisputable drive for disruption that creates competition and innovation in wireless and beyond. Based in Bellevue, Wash., T-Mobile provides services through its subsidiaries and operates its flagship brands, T-Mobile and Metro by T-Mobile. Customers: Approx. 114.9 million (as of 1Q ’23) Annual Revenues: 2022 total revenue of $79.6B

Employment History

Motivated and results-oriented Finance Management professional with proven leadership in a variety of business settings. Expertise in strategic planning, P&L Management, Capital Planning, financial modeling, and team development. Track record of success in increasingly demanding and responsible high-profile positions with an emphasis in financial leadership and strategy; leads major projects focused on cost transformation and improved client experiences, as well as internal process improvement and efficiency. Possess temperament, versatility, and quick decision-making proficiencies necessary to be a successful leader in rapidly changing, technologically complex environment. Past positions at T-Mobile include VP, FP&A supporting T-Mobile's Technology organization (Network, IT, Cyber-security); Sr Director, FP&A, Engineering & IT; Director, FP&A Core Network, Legal & Real Estate; Director, Retail Finance, Operational Reporting & Loss Prevention; Director, Customer Operations & Systems. Prior to T-Mobile, I held the director position leading business development programs for small businesses at the Seattle Chamber of Commerce. I also spent a couple of years on a Greek island teaching English as a second language!


Undergraduate degree in Sociology from Southwestern University, Georgetown, TX Executive MBA from Seattle University, Seattle, WA

Mentoring Objectives & Scope

I have been fortunate over my career to have a variety of experiences, challenges and progressive leadership positions. I hope to share my learnings of what has enabled me to be successful over my career and be an advisor to students as they prepare for their next steps. Moving from the classroom to workplace is exciting and often the key to success is building a network, learning how to influence others and working across teams to drive results.

When and where do you hold meetings with your students?

Worklife keeps me busy and I also serve as Board chair for a non-profit in Bellevue. My meeting availability is primarily after work hours during the week; Seattle University is only 15 minutes away from my work and home and easy for me to get to. I am also available on weekends. A mixture of in-person and virtual.

Additional Information

I have mentored a number of individuals at T-Mobile, including new in career and tenured professionals looking to move into management positions. I am excited to be involved in Seattle University's mentoring program and support students in their career journeys.