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Tianzi L. is currently a Quant Researcher and Single Stock Option Trader at Citadel Securities. Prior to this, Tianzi worked as a Proprietary Trading Summer Analyst at The D. E. Shaw Group and as a Global Market Summer Analyst at Goldman Sachs. Tianzi also held the position of Skydiving Society Officer at Imperial College London while pursuing their education there from 2017 to 2022.