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Yiwen Xiang

@yiwenxiang

I turn business and health data into validated metrics, dashboards, and machine learning insights.

I've spent over six years at Zhejiang Zhijin Asset Operations supporting financial, e-commerce, and property-service data through SQL extraction, reconciliation, metric validation, and issue investigation across Oracle and MySQL systems.

I'm now applying Python and R to health data science, including EHR analysis and an ELSA dissertation where CatBoost achieved a 0.908 ROC-AUC for identifying low quality of life in older adults.

Experience

Work history, roles, and key accomplishments

Operations Engineer – Business Data Support

Zhejiang Zhijin Asset Operations Co., Ltd.

Jul 2018 - Feb 2025 (6 years 7 months)

Supported data extraction, validation, and analysis across core business systems using SQL with Oracle and MySQL. Translated business requirements into technical specifications and collaborated with cross-functional teams to ensure data accuracy and timely delivery.

SQL Oracle MySQL Data Extraction Data Validation Root Cause Analysis Cross Functional Collaboration