Varun Marigandla

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Data Analyst

Hilton

Jan 2025 - Current (1 year 6 months)

• Analyzed operational and financial datasets using Python and SQL to uncover trends and deliver insights that improve d decision-making across business units. • Developed Tableau dashboards and automated Excel reports, improving KPI visibility and reducing manual reporting time by 40% • Performed EDA using Python (Pandas, NumPy) to identify anomalies, uncover behavioral patterns, and recommend c ost-saving opportunities. • Collaborated with Data Science teams to support ML personalization models, improving campaign targeting and enga gement rates. • Designed scalable data cleansing and transformation scripts, increasing data accuracy and reliability for downstream a nalytics and ML use cases. • Leveraged Spark, Hadoop (HDFS), and Map
Data Analyst

Teleperformance

Jan 2020 - Apr 2023 (3 years 4 months)

• Built SQL queries, stored procedures, and views to support data processing and reporting across high-volume transacti onal datasets. • Engineered ETL workflows using Python and SQL, creating analytics-ready datasets that improved model performance and reporting efficiency. • Designed Tableau dashboards for Marketing and Operations, reducing ad-hoc reporting requests by 50% and improving visibility of KPIs. • Improved SQL query performance by 30% through indexing, optimization, and tuning on large datasets. • Conducted EDA, handled missing values, and performed feature engineering to support predictive analytics and ML e

Education 0% verified

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