Vigneshwaran Gunasekaran

I’m a Data Analyst with 3+ years of experience delivering end-to-end data pipeline work—ETL, data cleaning, and transformations—using tools like Power Query and DAX. I optimize SQL Server databases and use SQL to manage complex query logic and data workflows.

I build interactive dashboards and reports with Power BI and Tableau to monitor KPIs and turn trends into actionable insights. I apply advanced analytics—regression, hypothesis testing, and time-series forecasting—and I present findings clearly to non-technical stakeholders.

I also use Python (Pandas, NumPy) to build predictive models, identify trends with machine learning techniques, and automate reporting with VBA and Python. In past work, I improved forecast accuracy by reducing Mean Absolute Percentage Error (MAPE) from ~200% to 5–15% by addressing anomalies and data quality issues.

I’ve designed Snowflake data models with DBT Cloud (staging, intermediate, marts) and improved scalability for large analytics workloads. I collaborate in Agile/SCRUM with cross-functional teams, integrate disparate data sources, and ensure compliance with data privacy regulations like GDPR and CCPA.