Toris Louie

Experience

1. Senior Business Intelligence Analyst

   Citi

   Aug 2022 — Present

   Led the identification and resolution of over 1,200 data discrepancies during the cloud migration process, employing advanced data mining techniques such as centroid and density clustering to classify and prioritize 350 critical issues for timely resolution, thereby safeguarding sensitive customer information and ensuring regulatory compliance. Implemented anomaly detection models in Python to monitor time series data for irregularities and vulnerabilities, reducing compliance gaps by 40% and enhancing data security measures across the cloud-based financial systems.Utilized association rule mining to analyze customer transaction data, revealing key purchasing patterns and product groupings, which informed the development of targeted strategies to mitigate compliance risks associated with the migration. Applied sequential pattern mapping to associate customer clickstreams and shopping sequences, improving the understanding of customer behavior and contributing to more accurate risk assessment and compliance strategy development. Developed and optimized complex SQL queries, stored procedures, and indexes to enhance the performance of cloud-based systems, resulting in a 30% improvement in data retrieval efficiency and supporting the swift resolution of compliance issues. Leveraged PySpark to calculate T-score and Z-score statistics for large datasets, providing robust data insights that guided the refinement of data governance frameworks and compliance measures, thus strengthening the institution\'s risk management capabilities.

Education

• University of Oklahoma

  BA/M.Ed

  2006 — 2014