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Apostolos Chalkis is a Research Engineer at Quantagonia since April 2022, focusing on the development of optimization models and their C++ implementations. Previously, Apostolos worked as a Quantitative Researcher at OLZ AG from October 2021 to March 2022, where a fixed-term research project involved creating randomized, geometric algorithms and open-source software for low volatility anomaly detection in stock markets, along with an efficient C++ backend integrated with a user-friendly R interface. Prior experience includes an Open-source Fellowship at Tweag in early 2021, which led to the development of a Python package for analyzing metabolic networks. Additionally, Apostolos completed two internships through Google Summer of Code with the R project for statistical computing in 2018 and 2019, guided by Dr. Apostolos holds a PhD and MSc in Computer Science from the National & Kapodistrian University of Athens, and a MSc in Applied Mathematics and Physics from the National Technical University of Athens.