- Web performance improvement: A/B testing, customer segmentations- ETL Design, Maintain- Prediction: Traffic prediction, Churn prediction- Sales Analysis: budget control: RFM model

- Developed Tableau data visualizations to enable marketing managers to easily understand complex performance metrics for each web campaign and track or download data as needed. This enhanced data-driven decision-making, leading to a 25% reduction in data reporting time and an 18% improvement in marketing campaign efficiency.- Processed the ETL/data pipeline between external data resources and internal data lake/ data reports. -Analyzed A/B tests to quantify experiment learnings--Optimize SQL code and streamline the data process - Conceptualize code and maintain key performance reports and dashboards through deep data analysis with an emphasis on automation

-Validating the data accuracy by SQL and internal data management tools-Worked with testing team and product manager in Triage Team to find out the pattern may cause vehicle paused on the street.- Collaborated closely with Software Development Engineers (SDE) and Product Managers (PM) to improve efficiency and accuracy in driving testing by extracting actionable insights and identifying discernible patterns through analysis of diverse backend software systems and SQL data, resulting in a 5% reduction in negative cases

-pattern analysis in risk email detection

web analysis: saved over 50k dollars for ads investment.

Process Improvement and Efficiency——Analyzed internal business processes and identified inefficiencies in property management operations, leading to the implementation of new software tools that reduced administrative tasks by 30%.Market Analysis and Strategy Development——Developed comprehensive market reports and dashboards using SQL and Tableau, providing actionable insights to senior management and guiding the company's expansion strategy.