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Jackline Mwangi

@jacklinemwangi2

Entry-level data analyst using SQL, Excel, Power BI, and Tableau to turn sales, healthcare, and Airbnb data into dashboards and insights.

Kenya

Message

I analyzed more than 500,000 car sales records in my personal project, using Excel and Power Query to clean the data and examine sales performance. I developed an interactive dashboard to present key findings.

For my healthcare data project, I used SQL to clean and analyze 55,501 patient records, removing 534 duplicates and standardizing patient and hospital names.

I created three interactive Power BI dashboards for executive, customer, and product analysis. I cleaned and related the datasets, then used DAX to calculate measures including average order value and return rate.

I also used SQL to explore e-commerce sales and customer data, and Tableau to analyze 42,931 New York Airbnb listings. My background includes a Bachelor of Science in Physics from University of Kabianga and an ALX AFRICA data analytics certificate.

Experience

Work history, roles, and key accomplishments

Academic Writer

Seal Writers

Jan 2023 - Jun 2025 (2 years 5 months)

Conducted research and analyzed information from multiple sources. Produced accurate, well-structured reports while meeting deadlines and maintaining high client ratings.

Research Report Writing Time Management Client Communication

Sales Representative

Paris Households

Jan 2022 - Nov 2022 (10 months)

Monitored sales performance and worked toward monthly targets. Maintained accurate customer and sales records and managed social media accounts to promote products and engage customers.

Sales Customer Records Social Media Management