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Bielefeld, Germany
I’m a Data Analyst and SQL specialist focused on turning raw, messy data into clean, structured, and high-value information.
I work with businesses, researchers, and teams who need their data cleaned, organized, and ready for real use — whether that means analytics, reporting, or database integration. I specialize in SQL, data processing, and performance optimization, and I’m comfortable working with large datasets containing hundreds of thousands or even millions of rows.
Writing and optimizing complex SQL queries
Cleaning and standardizing messy datasets
Removing duplicates, fixing inconsistencies, and improving data quality
Processing large datasets using Python (pandas & polars)
Preparing data for analysis, dashboards, and SQL databases
Building efficient workflows that save time and reduce manual work
I focus on accuracy, speed, and clear communication. My goal is not just to deliver a file, but to deliver reliable data you can confidently use for decision-making.
If your data feels overwhelming, unstructured, or too large to handle efficiently — I’m here to help.
My Specializations
