Hemamalini S

Detail-oriented Data Analyst with 1+ year of experience collecting, cleaning, and analyzing large datasets (500K+ Data) to deliver actionable business insights and support data-driven decision-making. Skilled in SQL (MySQL, SQL Server), Python (Pandas, NumPy), Power BI (DAX), Tableau, and Advanced Excel (Pivot Tables, VLOOKUP/XLOOKUP, Power Query) for data extraction, statistical analysis, and dashboard development. Proven track record in KPI reporting, exploratory data analysis (EDA), ETL automation, and cross-functional stakeholder communication, consistently improving reporting efficiency and driving measurable business outcomes.

Data Analyst - Code Innovative Technologies - Bangalore, Karnataka

(2025-06)

• Collected, cleaned, and analyzed 500K+ sales, customer, and product records using SQL and Python (Pandas), uncovering trends and patterns that improved sales performance by 12%.
• Built and maintained interactive Power BI dashboards with DAX to monitor Revenue, Profit, Conversion Rate, and Customer KPIs for cross-functional stakeholders, reducing manual reporting time by 40%.
• Automated ETL, data validation, and reporting workflows using SQL, Python, and Excel, improving reporting efficiency by 50% while ensuring data accuracy and integrity.
• Performed RFM Segmentation, Cohort Analysis, and statistical customer behavior analysis, translating findings into actionable insights that increased repeat purchases by 18%.
• Collaborated with cross-functional teams (marketing, operations, and leadership) to align reporting needs with business priorities and present findings in a clear, concise manner.

B.E. - Computer Science Engineering - Varuvan Vadivelan Institute of Technology (2021-08 - 2025-04)