A R Kumarasingham (Rathieshan) currently serves as the Manager of Corporate Planning at Rakuten Insight Global, Inc., where responsibilities include overseeing corporate planning and managerial accounting functions since July 2020. In addition, Kumarasingham has been an Adjunct Lecturer at Tokyo Christian University since April 2010, teaching an undergraduate course on the history and philosophy of science and Christianity. Previously, Kumarasingham worked at Gaba Corporation in various roles, contributing to post-merger integration, corporate planning, and new business planning, as well as serving as a Learning Studio Manager and English Instructor. Academic qualifications include a Doctor of Philosophy candidacy in Theology (Science and Religion) at the University of Oxford and a Master's degree in Philosophy/Theology from the University of Edinburgh.
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