Marigold Sonia

I've built sales, churn, and e-commerce analyses that turn complex datasets into practical business insights. My projects use SQL, Python, Power BI, Excel, and Tableau to identify performance trends and opportunities.

In a sales performance project, I created an interactive Power BI dashboard covering 12+ months of data and wrote SQL queries across multi-table datasets, reducing estimated reporting time by 30%. I also analyzed e-commerce transactions with RFM analysis and highlighted a 20% revenue uplift opportunity through retention of high-value customers.

At DecodeLabs, I collected, cleaned, and validated data for weekly business performance reports used by department heads. I automated Excel reports and pivot tables, reducing manual processing time by approximately 25%, while collaborating with cross-functional teams to define KPIs and deliver operational recommendations.

I'm eager to bring my analytical foundation in data cleaning, visualization, statistics, and predictive modeling to a data-driven team while continuing to grow.