Hi, my name is

Vusumuzi Nkosi.

Data Analyst | Aspiring Data Scientist.

I'm a data analyst specializing in SQL, data visualization, and turning complex datasets into actionable business insights. Currently focused on building data-driven solutions that help organizations make informed decisions.

Check out my work!

01. About Me

Hello! I'm Vusumuzi, a data professional with expertise in transforming complex datasets into actionable insights. My work focuses on creating interactive visualizations and data-driven stories that help organizations make informed decisions.

With experience in Power BI, SQL, and data modeling, I specialize in developing comprehensive reports that reveal hidden patterns and trends in data. I enjoy the challenge of finding meaningful insights in complex datasets.

Here are a few technologies I've been working with recently:

  • SQL (MySQL, PostgreSQL)
  • Power BI & DAX
  • Python (Pandas, NumPy)
  • Tableau
  • Excel & Power Query
  • Data Modeling
Vusumuzi Nkosi

02. Some Things I've Built

Featured Project

US Household Income SQL Analysis

Comprehensive SQL analysis of US household income data, exploring geographic patterns, demographic trends, and economic disparities across states and counties using advanced SQL techniques including window functions, CTEs, and data aggregation.

  • SQL
  • MySQL
  • Data Analysis
  • Geographic Data
US Household Income Analysis

Featured Project

World Life Expectancy SQL Analysis

In-depth SQL analysis of global life expectancy data, examining trends over time, correlations with economic indicators, and identifying factors affecting longevity across different countries using advanced analytical SQL techniques.

  • SQL
  • MySQL
  • Time Series Analysis
  • Global Data
World Life Expectancy Analysis

Other Noteworthy Projects

E-commerce Sales Dashboard

Interactive Power BI dashboard analyzing e-commerce sales data with customer segmentation, product performance metrics, and seasonal trend analysis.

  • Power BI
  • DAX
  • Excel
  • Data Modeling

Customer Behavior Analytics

Python-based analysis of customer behavior patterns using clustering algorithms and predictive modeling to identify high-value customer segments.

  • Python
  • Pandas
  • Scikit-learn
  • Matplotlib

Automated Financial Reports

Tableau-based automated financial reporting system with real-time KPI tracking, budget variance analysis, and executive summary dashboards.

  • Tableau
  • SQL
  • PostgreSQL
  • Automation

Data Visualization Portfolio

Collection of interactive data visualizations and dashboards showcasing various analytical techniques and storytelling through data.

  • D3.js
  • Python
  • Matplotlib
  • Seaborn

Sales Performance Tracker

Real-time sales performance dashboard with predictive analytics and team performance metrics for data-driven decision making.

  • Power BI
  • Python
  • API Integration
  • Machine Learning

Database Optimization Project

Comprehensive database performance optimization project focusing on query efficiency, indexing strategies, and data warehousing best practices.

  • SQL
  • PostgreSQL
  • Performance Tuning
  • Data Warehousing

03. What's Next?

Get In Touch

I'm currently looking for new opportunities to apply my data analysis skills. Whether you have a question about my work or just want to say hi, I'll try my best to get back to you!

Say Hello