Tamil Selvan

Data Analyst with hands-on experience analyzing 28,000+ records across customer churn and sales analytics projects. Skilled in Advanced SQL, Python, ETL pipelines, Machine learning models, Data Visualization, and Business Intelligence and KPI improvements, and dashboard development, Stakeholder Reporting, and process optimization using Tableau, POWER BI and deliver measurable business impact.

Data Analyst Intern at Kaashiv Infotech (2025-11 – 2026-04)

• Analyzed 7,000+ customer records using Python and SQL to identify key factors contributing to customer churn.
• Performed data cleaning, preprocessing, and exploratory data analysis (EDA) using Pandas and NumPy.
• Built interactive Power BI dashboards to monitor customer churn, retention rate, KPIs, and customer segmentation.
• Generated business insights and recommendations to improve customer retention strategies.
• Analyzed 21,000+ sales transactions to identify revenue trends, profit drivers, and customer purchasing behavior.
• Developed SQL queries using JOINs, GROUP BY, Aggregate Functions, Subqueries, for business reporting.
• Designed interactive Power BI dashboards to track Total Sales, Profit, Orders, and Profit Margin KPIs.
• Delivered monthly sales performance reports and category-wise business insights to support decision-making.

Bachelor of Computer Application in BCA – APOLLO ARTS AND SCIENCE COLLEGE (2021 – 2024)