Guo-Jun Liao is a Quantitative Researcher at WorldQuant since May 2022, specializing in the development of risk-controlled trading strategies focused on statistical arbitrage. Concurrently, Guo-Jun serves as a Postdoctoral Researcher and PHD Candidate at Technische Universität Berlin since March 2016. Previous positions include a Graduate Research Assistant at the Institute of Physics, Academia Sinica, where Guo-Jun conducted computational studies on DNA conformation and translocation, and a Data Manager at Taipei City Traffic Engineering Office. Additional experience encompasses a Teaching Assistant role at the Department of Physics, National Taiwan University, and an internship at Forschungszentrum Jülich, focusing on soft particle simulations. Guo-Jun holds a PhD in Theoretical Physics from Technische Universität Berlin and advanced degrees in Physics from National Taiwan University.