Karthik Subramanian
Chennai, Tamil Nadu · +91 90000 00105 · [email protected]
Summary
Data analyst with 3 years of experience turning sales and operations data into clear dashboards and recommendations. Skilled in SQL, Excel and Power BI, with a habit of checking data quality before drawing conclusions.
Experience
Data Analyst, Marina Retail Group
Chennai · Jun 2023 to Present
- Built 12 Power BI dashboards for sales and inventory used by 80 store managers every week.
- Wrote SQL queries on a 40-million-row dataset to find slow-moving stock, helping cut dead stock by 18%.
- Automated a weekly report in Python that saved the team 10 hours a week.
- Presented findings to senior management and recommended a pricing change that increased margin by 3%.
Junior Analyst, Coromandel Analytics
Chennai · Jul 2021 to May 2023
- Cleaned and validated customer data from 5 sources, reducing duplicate records by 22%.
- Created Excel models and pivot tables for monthly business reviews.
- Supported A/B tests on email campaigns and reported results to the marketing team.
Education
B.Sc., Statistics, Southern University, Chennai (2018 to 2021) · First Class (78%)
Skills
SQL · Excel (advanced) · Power BI · Python · Pandas · Data cleaning · Data visualisation · A/B testing · Statistics · Tableau · Reporting · Stakeholder communication
Certifications
- Microsoft Power BI Data Analyst, Microsoft (2023)