Hi, I'm Joan
A Data and Business Intelligence Analyst. I work with data to uncover patterns and deliver solutions that drive smarter business decisions. Using Power BI, SQL, and Excel, I focus on solving problems and providing clear, actionable Insights
JC

About

I'm Joan Chinonyerem Chukwuemeka, a Microsoft Certified Data and Business Intelligence Analyst with a background in Customer Experience. I work with data not just to analyze numbers, but to understand problems, uncover patterns, and help organizations make better decisions.

I cover the full analytics process from cleaning and preparing data to building dashboards and presenting insights in a way that resonates with both technical and non-technical audiences. My experience in customer-facing roles shapes how I approach data: I focus on what the numbers mean in real life and how they can improve processes, performance, and outcomes.

To me, data represents people, their challenges, and opportunities for real solution. My goal is to help organizations move from uncertainty to clarity by turning data into insights they can act on with confidence.

Skills

Microsoft Excel
SQL
Power BI
Microsoft Office 365
Data Analysis
Data Visualization
Customer Experience
Business Intelligence
Data Storytelling
ETL Processes
Statistical Analysis
Voice of Customer (VoC) Analytics
SQL Server Reporting Services (SSRS)
My Projects

Here's how I've been solving real problems with data

Walmart Sales Analysis

Walmart Sales Analysis

The business lacked clarity on sales patterns and customer behavior, risking inefficient pricing and missed revenue. I analyzed Walmart sales data to uncover demand trends, seasonality, and high-performing products, enabling better inventory planning, targeted promotions, and informed sales strategies.

Retail Analytics
Power BI
Sales Analysis
Trend Analysis
Inventory Insights
Dashboard Design
Airbnb Seattle EDA

Airbnb Seattle EDA

Airbnb hosts and investors lacked insight into pricing and revenue drivers. Using SQL-driven exploratory analysis, I examined pricing trends, customer sentiment, and host activity to identify key factors supporting smarter pricing and listing strategies.

Pricing Analytics
SQL
Exploratory Data Analysis
Market Analysis
Customer Insights
Data Storytelling
National Healthcare Oversight Analysis

National Healthcare Oversight Analysis

Healthcare administrators had limited visibility into patient risk, costs, and hospital performance. I analyzed admissions, length of stay, and cost data across hospitals using Power BI to highlight high-risk areas and cost-intensive trends, supporting proactive care and efficient resource allocation.

Healthcare Analytics
Power BI
Cost Analysis
Data Storytelling
DAXx
Stakeholder Insights
HR Analytics: Voice of Employees (VOE)

HR Analytics: Voice of Employees (VOE)

The organization had employee data but had limited visibility into engagement and satisfaction. I analyzed workforce and feedback data to identify engagement patterns and drivers of attrition, helping Human Resources(HR) design more effective retention and engagement strategies.

People Analytics
Microsoft Excel
Employee Engagement
Performance Analysis
Workforce Insights
HR Analytics
AgriFinance Hackathon

AgriFinance Hackathon

Collaborated in the CodeStorm Elite Team during the Data Community Africa Hackathon to improve access to finance for young agripreneurs. I led the data analytics work: cleaning and analyzing multi-source data and building Power BI dashboards, to support a predictive credit scoring and risk assessment solution, demonstrating how data can reduce lending risk and expand financial inclusion.

Credit Risk Analytics
Power BI
Financial Analysis
Predictive Insights
Cross-functional Collaboration
Business Intelligence
Customer Retention Analyis

Customer Retention Analyis

The organization struggled to understand drivers of customer churn. I analyzed customer and service data to identify churn patterns and contributing factors, providing insights that support targeted retention strategies and more proactive engagement.

Customer Analytics
Power BI
Churn Analysis
Business Insights
Customer Experience
Stakeholder Reporting
Achievements

Professional Achievements

  • M

    Microsoft Certified: Power BI Data Analyst Associate

    Microsoft Learn

    Achieved Microsoft's official certification for Power BI Data Analysts, demonstrating proficiency in preparing data, modeling data, visualizing data, analyzing data, and deploying and maintaining deliverables.
  • S

    SQL Associate Certificate

    DataCamp

    Demonstrated proficiency in using SQL for data analysis, including skills in data management and exploratory analysis, among other core competency areas.
Contact

Get in Touch

Want to chat? Just send me a message on LinkedIn and I'll respond as soon as I can.