Abba Stmark

Analyze transactional and demographic data to identify customer-value, churn, and lending patterns, turning results into clear business insights and decision-support recommendations. Work with data from 18,000+ customers using exploratory analysis, segmentation, statistical evaluation, and feature analysis.

Optimized and automated SQL reporting scripts, uncovering ₦4 billion in previously unreported retail deposits and materially improving executive reporting accuracy. Collected, validated, analyzed, and reconciled retail banking, customer, market, and performance data to ensure reliable reporting and support senior-level decisions.

Led weekly BI reviews of retail risk assets and loan products, presenting performance trends, gaps, risks, and actionable insights to senior management. Analyzed customer profiles, loan/credit usage, product adoption, and profitability drivers to refine segmentation and support commercial decisions.

Led a five-person team using SQL and BI analysis to diagnose digital-lending performance issues, contributing to a 15% reduction in loan application failure rates. Designed a customer analytics dashboard prototype for relationship managers and created ERDs/metadata documentation to strengthen reporting and data-warehouse reliability.

Pursuing a Master of Science in Data Science.

Grade: Second Class Upper

Earned a Bachelor of Science in Food Science and Technology with Second Class Upper honors.