James Kostelnik
Senior Principal, Services Business Development at Mastercard
- Role
- Senior Principal, Services Business Development at Mastercard
- Location
- Los Angeles, CA, US
- LinkedIn followers
- 500 followers
About James Kostelnik
Technology business leader scaling growth opportunities into 9‑figure businesses. Deep cross-functional experience across sales, product, and consulting leadership roles. Passionate people leader and mentor.
Experience
Senior Principal, Services Business Development
Mar 2026 — Present · Los Angeles, CA, US
Currently leading the sales organization bringing Mastercard’s Services portfolio to customers across Emerging, Processing, and Acquiring verticals. Since starting role in 2023, have driven 3x revenue growth with consistent budget outperformance.Recognized for outstanding performance with the 2025 President\'s Club award for North American Services (1st ever recipient)
Education
Duke University
Bachelor of Arts (B.A.), Political Science
Duke University - The Fuqua School of Business
Master of Management Studies
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