Sonali Kumar

I’m a Data Analyst with hands-on experience developing interactive Power BI dashboards, optimizing SQL database queries, and designing efficient ETL data pipelines. I build robust Star Schema data models and configure Row-Level Security (RLS) to ensure data governance, transforming complex datasets into actionable business intelligence. In my work, I deliver measurable impact through precise modeling and reporting. I engineered an operations dashboard using a Star Schema model with 10+ business metrics, authored 25+ DAX measures for dynamic KPIs, and implemented RLS for enterprise-grade access control; in SQL analysis, I optimized reporting accuracy by 35% with strict validation and parameterized filtering across 25+ advanced queries. As a Freelance Data Analyst (Remote), I’ve automated workflows with Power BI and Power Query, reducing manual processing time by 30% and improving data refresh performance and integrity using M Language. I also completed virtual corporate analytics experiences (Tata Group, Deloitte, BCG X), where I built executive-facing dashboards, performed rigorous data scrubbing/deduplication, and synthesized insights for senior stakeholders.