A structured repository showcasing my problem-solving skills across SQL, Python, Data Analysis, and Data Engineering.
This repository reflects my approach to learning and solving problems: clean structure, clear explanations, and scalable organization.
- SQL (LeetCode & Interview Problems)
- Python (Algorithms & Data Structures)
- Data Analysis (Pandas, NumPy, Case Studies)
- Data Engineering (ETL, Airflow, Spark)
- System Design Basics
Each folder represents a domain with:
- Problem solutions
- Explanations
- Patterns & notes
- SQL (MSSQL, MySQL, PostgreSQL)
- Python
- Pandas & NumPy
- Apache Airflow
- Apache Spark
Mohamed Darwish
Junior Data Analyst | Aspiring Data Engineer
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