Delphine Mensah

Senior Data Analyst @Synchrony

Stamford, CT, US

Developed interactive Tableau dashboards to monitor credit card portfolio performance, increasing portfolio revenue by 12% YoY through improved customer segmentation and spend analysis- Automated daily financial and operational reporting using SQL and Excel, reducing manual work by 30 hours/month and enhancing reporting accuracy across business units- Standardized KPI scorecards across business lines to track loan approvals, customer engagement, and delinquencies, improving cross-team accountability and raising customer satisfaction by 12%- Consolidated reporting systems into a unified Tableau suite, reducing executive reporting turnaround time by 68% and improving data consistency by 23%- Created Power BI dashboards to analyze transaction-level POS and inventory data, optimizing stock levels and reducing excess inventory costs by $1.2M annually- Streamlined weekly credit performance reporting with Python automation, accelerating insight delivery by 40% and supporting faster risk decisioning- Designed customer journey analytics using behavioral and transactional data, uncovering insights that boosted product adoption and conversion by 18%- Built supplier and merchant performance dashboards leveraging Snowflake and Power BI, improving partner negotiations and increasing product margin by 8%.