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PawelCzech1/README.md

Hi, I'm Paweł Czechowicz

Data Analytics Engineer with a strong analytical mindset and experience in technical customer support. Skilled in SQL, Python, Pandas, Excel, and PostgreSQL. I develop practical data projects focused on data transformation, ETL processes, and real-world business challenges.

📂 Featured Project

Projects focused on SQL, Python, Pandas, and data engineering concepts. Each project is based on real-world business scenarios and covers the complete analytical workflow, from data extraction and transformation to reporting and actionable insights.

The portfolio demonstrates practical experience in working with relational databases, ETL processes, data cleaning, exploratory analysis, and business problem-solving using modern data tools.

🧰 Tools & Skills

SQL: complex queries, joins, aggregations, subqueries, and business-oriented data analysis
Python: data processing, automation, and ETL workflows Pandas: data cleaning, transformation, merging, and exploratory analysis PostgreSql / mySql: database design, querying, and working with relational datasets
Excel: data preparation, PivotTables, advanced formulas, and validation Git & GitHub: version control and project documentation

🧠 About Me

I’m detail-oriented, analytical, and focused on practical problem-solving. My journey into data began with Excel and SQL and has since expanded to Python, Pandas, PostgreSQL, and ETL development. I learn best by building hands-on projects based on real-world datasets and business challenges.

🌍 Beyond Data

Outside of data projects, I'm passionate about animal welfare and share my home with four cats.

Caring for animals has taught me patience, attention to detail, and consistency — qualities that also support my approach to working with data.

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