Nixon walei

Freelancer

I am a detail-oriented Data Analyst with a professional background in the fintech sector. I specialize in transforming raw, fragmented data into structured, actionable insights. Whether it's cleaning massive CSV files, optimizing SQL queries, or building automated Power BI dashboards, my goal is to ensure your data is 100% accurate and ready for decision-making. ​Core Skills: > * Advanced Data Cleaning (Power Query, Python) ​Database Management (Oracle SQL, MySQL) ​Visualization (Power BI, DAX,