Vishnu Vardhan Chiluvuri
Data Analyst | SQL • Power BI • Tableau • Python
- Role
- Data Analyst at The Cigna Group
- Location
- DeKalb, IL, US
- LinkedIn followers
- 500 followers
About Vishnu Vardhan Chiluvuri
I am a Data Analyst focused on turning complex, messy data into reliable insights that…
Experience
Data Analyst
Jan 2025 — Present · US
Worked on Market Trend Analysis & Price Prediction Model, collaborating with product, data science, and engineering teams-through Agile sprints and requirements sessions to analyze housing trends across U.S. metro areas for price forecasting.• Utilized advanced SQL techniques like window functions and CTEs to extract and transform data from AWS S3 via Athena, optimizing queries to enhance ETL pipeline efficiency for large-scale Zillow property datasets.• Conducted comprehensive exploratory data analysisincluding time-series decomposition and seasonality analysisto uncover market cycles and regional pricing differences, improving data quality and model feature selection.• Leveraged Python librariessuch as Pandas and NumPy alongside statistical testslike Augmented Dickey-Fuller and correlation matrices for stationarity and feature correlation analysis to ensure robust data preparation before modeling.• Performed data validation and ETL automation using AWS Glue and Lambda functions, improving data pipeline reliability and reducing manual errors. Maintained continuous data integrity for real-time model updates.• Developed interactive Power BI dashboardsfeaturing drill-through filters, slicers, and KPI indicators. Utilized advanced DAX formulas to calculate year-over-year price growth and regional forecasts, empowering stakeholders to monitor market shifts effectively.
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