Program Director

Jaehyuk Choi is the MAFN program director. He was an Associate Professor at Peking University HSBC Business School before joining Columbia in 2025. Prior to his academic career, he spent nine years as a fixed-income quant at Goldman Sachs in New York and Hong Kong. Jaehyuk is also a co-founder and academic advisor to quants.net, a financial technology company. His research interests encompass mathematical finance, machine learning, and numerical methods. He holds a Ph.D. in Applied Mathematics from the Massachusetts Institute of Technology.

Assistant Director

Gloria Wong is a career advisor for the MAFN program. She was a career advisor at Boston College Carroll Graduate School of Management before she joined Columbia in August 2023. Gloria holds a Masters in College Student Development and Counseling from Northeastern University where she also earned her Bachelors degree.

Assistant Director, Academic Affairs

Martyna Grazda joined Columbia University in June 2021. She provides day-to-day academic program support to faculty, students, and administration, including admissions, and student affairs. Martyna also supports the MAFN program by helping the students with all procedural questions, course registration, and other academic-related activities. Prior to this role, she worked as a manager at a law firm. Martyna holds a master’s degree in Negotiation and Conflict Resolution from the School of Professional Studies at Columbia University.