Samuel Maina
Data Analyst | SQL, Python, 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 excessive security flags can disrupt legitimate customers.
I built an end-to-end fraud analytics project using 100,000 retail transactions to uncover fraud patterns and...
Retail Inventory and Sales Analysis
Retailers often collect large amounts of sales and inventory data but struggle to turn it into clear decisions around stock, demand, and revenue performance.
I built an end-to-end retail analytics solution using Python, MySQL, and Power BI. With...
Security Support Information System
Developed an end-to-end Business Intelligence solution for the private security industry to improve operational visibility and decision-making. The project involved data cleaning and transformation using Python, relational database design in...
