Samuel Maina
Freelance Data Analyst | SQL, Excel, and Power BI Expert.
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Retail Fraud Analysis
Retail businesses face a tough balancing act: missing real fraud drains revenue, while overly aggressive security flags legitimate customers and hurts retention.
To solve this, I built an end-to-end analytics project examining 100,000 retail transactions to...
Retail Inventory and Optimization Tool
Retailers often collect large amounts of sales and inventory data but lack
a system to turn it into clear, actionable decisions, making it hard to
know which products to reorder, which are slow-moving, and which risk
stockouts or...
Security Support Information System (SSIS)
The Security Support Information System (SSIS) is an end-to-end Business Intelligence solution developed to address operational visibility and decision-making challenges in the private security industry.
The project involved identifying a...
