Kelvin Mathu Waithira

I am a Data Analyst with a strong background in SQL, Python, Excel, Tableau, and Power BI, passionate about transforming raw data into meaningful insights that drive better decision-making. My unique journey blends a foundation in Nursing and Healthcare with advanced data analytics, giving me the ability to approach data problems with precision, attention to detail, and a deep understanding of human impact.

Over the past few years, I have worked on projects that range from healthcare analytics to business intelligence. For example, I analyzed OCD diagnosis datasets using MySQL and Power BI, uncovering demographic and epidemiological trends that helped a client better understand patient outcomes. I also built an interactive financial dashboard for a healthcare center, highlighting KPIs such as revenue, provider efficiency, and long-term trends. Beyond healthcare, I have designed dashboards for sales distribution analysis, using SQL to clean and extract data from multiple relational databases and Power BI to present actionable insights for business growth.

My core strengths lie in data cleaning, visualization, and dashboard creation, ensuring that stakeholders can quickly interpret complex datasets. I am highly skilled in using SQL for querying large datasets, Python (Pandas, NumPy, Matplotlib) for data wrangling and analysis, and cloud tools such as AWS and Microsoft Azure for scalable solutions. Whether it’s automating Excel reports, designing interactive Tableau dashboards, or building Power BI reports with DAX, I ensure that every deliverable is accurate, insightful, and user-friendly.

What sets me apart is my ability to translate technical insights into practical recommendations. With my healthcare background, I know how critical clear, actionable data can be for decision-making. I apply the same mindset across industries—helping businesses save time, identify opportunities, and improve performance.

I am reliable, detail-oriented, and committed to delivering high-quality work on time. Clients who work with me appreciate not only the technical accuracy of my analysis but also the clarity with which I communicate results.

If you’re looking for a data analyst who can blend technical expertise with real-world application, I would be excited to collaborate with you. My goal is always to empower organizations with data-driven insights that lead to smarter strategies and measurable impact.