John Tien – Biography
Last update: March 19, 2026Executive profile
John was Chief of Staff, Global Consumer Operations and Technology for Citigroup. John Tien joined Union Pacific in 2024.
John Tien is currentlyDirector at SAIC - View - SAIC org chart
Director at Union Pacific - View - Union Pacific org chart
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Education
John Tien has a Bachelor of Science from United States Military Academy at West Point and a Master of Arts from University of Oxford.
They have also studied at United States Military Academy at West Point :
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They have also studied at University of Oxford :
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Company Colleagues
- At SAIC, John Tien has 38 colleagues including James Reagan (CEO & Director), Donna Morea (Chairman of the Board)…
- At Union Pacific, John Tien has 30 colleagues including Jim Vena (CEO & Director), David Dillon (Director)…
Industry Colleagues
- In the Highways & Railroads industry, John Tien has 3,398 colleagues in 216 companies located in 38 countries. 2,064 executive movements have been recorded in the last 12 months. Learn more about Highways & Railroads.
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