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Zhongyi (Troy) Zhang is a seasoned data professional with extensive experience in data science and engineering. Currently serving as a Senior Data Scientist at Fashion Nova, Zhang focuses on machine learning for ranking, search, and recommendation systems. Prior roles include Software Engineer at SHEIN, where Zhang designed scalable real-time data pipelines and developed advanced recommendation systems that significantly boosted user engagement and conversion rates. Previously, as a Data Scientist at Dave, Zhang executed A/B testing for debit card offerings and optimized ETL processes. Other notable positions include Data Engineer at Athene, Clinical Data Analyst Intern at AbbVie, and various internships in data analysis and actuarial science across banking and healthcare sectors. Zhang holds a Master of Science in Biomedical Sciences from the University of Chicago and a Master's degree in Business Analytics from the University of Illinois Urbana-Champaign, along with a Bachelor of Science in Actuarial Science from Michigan State University.