Youssef Z.Private profile: Upwork shows its earnings only to signed-in members, so we check it every few weeks, not daily. MRR here is a rough estimate (Upwork's six-month earnings ÷ months active). Last read Nov 5, 2026.

I build and maintain the data infrastructure that businesses run their reporting and analytics on from ingestion and transformation to reliable, automated pipelines. I work across the full data engineering stack: extracting data from APIs, files, and databases, modeling and transforming it, and automating the workflows that keep it flowing without manual intervention. Clients use this so their data is clean, structured, and always up to date without babysitting a pipeline by hand. What I do best: - ETL/ELT pipeline design and automation (Python, n8n) - SQL database design, querying, and optimization (PostgreSQL, MySQL, SQL Server) - API and multi-source data integration - Data modeling and cleaning at scale - Workflow automation for recurring data jobs Tools: Python (Pandas, NumPy, Scikit-learn), SQL, ETL pipelines, n8n, Power BI/Tableau (for downstream reporting when needed) I focus on building pipelines that are reliable, maintainable, and don't break when the data changes shape.