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Christopher Kostka worked as a QA Lead at Titipku starting from March 2019. Prior to that, they worked as a freelance at Unisi Event, Mara Group, Radar Jogja (DBL Jogja), and S Pro from June 2016 to March 2019.

Christopher Kostka completed a Bachelor's degree in Ilmu Komunikasi from Universitas Atma Jaya Yogyakarta, starting in 2012 and finishing in 2018.