Open to opportunities

Wisdom Mike

@wisdommike

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Data analyst building Power BI dashboards with SQL to surface fraud, churn, and actionable business insights.

Nigeria

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What I'm looking for

I’m looking to build business intelligence dashboards and data-driven reports that help teams spot fraud risk, understand customer behavior, and make clearer decisions—especially through Power BI, SQL, and KPI-focused analysis.

I build end-to-end data analysis and BI dashboards using MySQL, Excel, and Power BI. My projects span financial services, healthcare, and entertainment, from extracting and cleaning data to delivering interactive, decision-ready visuals.

For OPay transaction and fraud analysis, I wrote SQL to extract, aggregate, and segment data across transaction type, engagement level, and city. I also designed a multi-page Power BI dashboard (Business Overview, Customer Insights, Fraud Analysis) to reveal revenue drivers and fraud distribution patterns by channel.

I’ve also built fraud detection dashboards to isolate fraud indicators with SQL and present trends for risk stakeholders, plus a healthcare analytics dashboard using Power Query and DAX KPIs (like average billing, length of stay, and outstanding debt). For Netflix user behaviour and churn, I analyzed 50,000 users across 10 countries and delivered dashboards to investigate churn drivers.

Experience

Work history, roles, and key accomplishments

Healthcare Analytics Developer

Healthcare Analytics Dashboard

Built an interactive Power BI dashboard to analyze hospital performance, patient distribution, billing, and outstanding debt metrics.

Power BI Power Query DAX Excel Data Cleaning

Fraud Detection Data Analyst

Fraud Detection Data Analysis Dashboard

Developed a comprehensive fraud detection dashboard to identify and visualize fraudulent vs. legitimate financial transactions.

MySQL Excel Power BI Fraud Detection Data Visualization

Netflix User Behaviour Analyst

Netflix User Behaviour & Churn Analysis

Analyzed subscription and behavioral data from 50,000 Netflix users across 10 countries to uncover churn drivers and engagement patterns.

Power BI MySQL Excel Customer Segmentation Data Storytelling

Data Analyst

Opay

Performed end-to-end analysis of OPay digital financial transaction data (2018–2025), covering revenue, customer behavior, geographic activity, and fraud patterns.

MySQL Excel Power BI Fraud Detection Data Cleaning Dashboard Development

Education

Degrees, certifications, and relevant coursework

Self-Directed Learning in Data Analytics

Self-Directed Learning, Data Analytics

Specialized in MySQL, Microsoft Excel, and Power BI through practical, project-based learning with real-world datasets across financial services, healthcare, and streaming industries.