Komal Chavan

Data Analyst

Tata Consultancy Services (TCS)

Jun 2022 - Present

Designed and deployed interactive Tableau dashboards for multiple business units, improving reporting efficiency and enabling faster data-driven decision-making. Developed interactive Power BI dashboards and reports to visualize business KPIs, trends, and performance metrics, enabling stakeholders to make data-driven decisions. Used Power Query for data extraction, cleansing, transformation, and preparation from Excel, CSV, and Oracle database sources to create reliable reporting datasets. Performed data modeling in Power BI, including creating relationships between tables, developing calculated columns and measures using DAX, and designing optimized data models for reporting. Extracted, cleaned, transformed, and analyzed large datasets from Excel, CSV, and Oracle database sources to support enterprise business reporting needs. Developed optimized SQL queries for reporting, data extraction, and analysis across multiple enterprise data sources. Leveraged advanced Tableau features — LOD Calculations, Parameters, Actions, and Data Blending — to deliver sophisticated, business-ready analytics solutions. Managed end-to-end Tableau and Power BI dashboard lifecycle, including requirement gathering, design, development, testing, deployment, and post-production support. Collaborated with cross-functional teams and stakeholders to gather requirements, design BI solutions, and deliver actionable insights aligned with business objectives. Led migration of legacy reporting solutions to Tableau and Power BI environments, ensuring continuity and minimal disruption to business operations. Used AI tools such as Microsoft Copilot and Claude to accelerate data cleaning, formula/DAX/LOD drafting, and visualization design across dashboards. Documented all reporting solutions in accordance with SDLC standards, coding best practices, and organizational guidelines.