Data Analyst
Current● Led the development of a DWH, including ETL processes for 50+ data sources and building data marts with over 100 million rows ● Enhanced data management by optimizing storage and cleaning for 150+ tables, which improved processing efficiency by 20%● Integrated advanced Data Quality (DQ) tools with real-time metric visualization, leading to a 15% improvement in data quality● Designed and deployed algorithms for analyzing company affiliations based on public procurement data, resulting in actionable insights for stakeholders● Developed scripts that automated and optimized data steward tasks, increasing process efficiency by up to 40% ● Built an automated data labeling and data lineage system, enhancing transparency and traceability of data flows● Documented over 50 processes using BPMN notation and prepared comprehensive project documentation● Developed specialized algorithms for medical policy validation and driver's license data verification, enhancing operational accuracy