THAMARAI SELVAN N

Data Analyst

Vaniyambadi, India

I’m a passionate Data Analyst with an MCA background, skilled in SQL, Python, Excel, Power BI, and Tableau. I enjoy transforming raw data into meaningful insights through data cleaning, exploratory data analysis, and visualization. I create interactive dashboards and KPI reports to identify trends and business patterns. I’m continuously improving my analytical and technical skills and looking forward to solving real-world business problems using data.

Languages

Tamil English

Skills

*️⃣ Languages & Tools: SQLPythonExcelPower BITableauGoogle Sheets*️⃣ Libraries: NumpyPandasMatplotlib*️⃣ Core Concepts: Data Cleaning & TransformationExploratory Data Analysis (EDA)Data VisualizationDAX (Basics)Joins & SubqueriesDashboard DesignKPI TrackingStakeholder Reporting*️⃣ AI Tools: ChatGPTGeminiClaude AICanva AI*️⃣ Soft Skills: Problem SolvingCritical ThinkingAdaptabilityTime Management

Projects

Sales Performance Dashboard

Built an interactive Power BI dashboard analyzing regional sales and product performance, converting raw sales records into actionable revenue and profit-margin insights. Designed DAX-based KPIs and drill-down visuals for stakeholder-ready reporting.

Customer Behavior & Sales Analytics

Analyzed 15,000+ customer transactions using SQL joins and subqueries to identify purchasing patterns and customer behavior. Performed EDA with Python (Pandas, Matplotlib) and built a Power BI dashboard for sales and customer insights.

Independence Day Celebration Dashboard

Developed an interactive Excel dashboard analysing 200 participant records across events, departments, states, gender, feedback, and participation modes. Created KPI cards, PivotTables, PivotCharts, and slicers to enable dynamic reporting and performance analysis.

Super Store Sales Dashboard

Designed an interactive Excel dashboard to analyze sales, profit, discounts, regional performance, shipping, and product categories. Built KPI summaries, PivotCharts and slicers to deliver actionable business insights through interactive reporting.

Certifications

Effective Data Analytics Using AI

Full Stack Development

Workshops

Kotlin (National level workshop on Kotlin)

Education

Priyadarshini Engineering College

MCA( Master of Computer Applications ) • 2024 - 2026

Islamiah College (Autonomous)

B.Sc (Computer Science) • 2021 - 2024

7.06

Achievements & Awards

NCC-A Certificate

I am a NCC-A Certificate holder, I have welling to social welfare and volunteer

Publications & Research

National Conference on Automation using AI Technology — Paper Presenter

2026

PMC Hosur

Get in Touch

Interested in collaboration or just want to say hello? Feel free to reach out!