Hello, I am

Maciej Bentkowski

Programmer Problem solver

I am problem solver with over 5 years of experience in solving programming problems (3 years in data industry). My adventure with technology started with a deep curiosity about how I can create with code, which led me to explore different programming languages, frameworks and development tools. I enjoy solving complex problems, prototyping MVPs and creating things that people need. Actually focusing on Data Engineering, Business Inteligence and AI Tools

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Tools & Technologies

Data

SQL Python Pandas Power Query SQL Server PostgreSQL Duck DB SQLite Grafana Power BI Looker Studio

Web Development

Ruby on Rails Hotwire Astro React Tailwind CSS CSS

Infrastructure & Tooling

Docker AWS Azure Git LLM Airflow

Experience

Data Analytics Specialist

Polkomtel

Dec 2025 - Present

Warsaw, PL

Create ETL Processes for data analysis and reporting. Create Dashboards

PythonSQLGrafana

Data Operations Analyst

Solera | Audatex

Aug 2022 - Nov 2025

Poznan, PL

Working with Data files Mapping and create ETL processes for data analysis Documenting processes and transferring them to new environments. Independent troubleshooting of ETL processes and environments

PythonPandasSQLPytest

Planist

CXM Tech Services

Feb 2022 - Aug 2022

Poznan, PL

Provide payment card terminal training in Poland, England and Ireland. Create quality and customer service performance reports. Addressing issues related to the functionality of payment card terminals. Solve logistics-related problems

Microsoft ExcelPython