10/28/2026 updated
KT
100 % available
Senior DWH/BI Engineer | Power BI & Microsoft Fabric | Python, AI Automation & GenAI
Katowice, Poland
Only remote
Postgraduate Studies in Data Science and ML, University of Economics in Katowice (2021-2022)Power BI & Business Intelligence Development
Expertise in building interactive reports, paginated reports, and dashboards in Power BI using DAX, Power Query M, and data modeling. Proficiency in Power BI Service administration including workspaces, gateways, scheduled refreshes, and row-level security. Experience migrating clients from Tableau and Qlik Sense to Power BI.
Data Engineering & ETL/ELT Processes
Hands-on experience managing ETL and ELT pipelines using Azure Data Factory, Snowflake, Airflow, and Microsoft Fabric. Collecting and integrating data from diverse sources including Hadoop, PostgreSQL, JSON, REST APIs, and SQL databases. Proficiency in Azure SQL, Key Vault, and Azure DevOps for CI/CD pipelines.
AI Automation & GenAI Engineering
Building GenAI projects and AI automation workflows using Python, LLM APIs, n8n, and Claude Code. Development of RAG-based assistants and SaaS platforms that scrape and process data from multiple sources. Experience with spec-driven development and AI-assisted development tools such as Claude Code, Codex, and Cursor.
Microsoft Fabric & Azure Data Services
Practical experience with Microsoft Fabric for analytics engineering and Azure Data Factory for data integration. Familiarity with Azure Databricks, Azure SQL, Key Vault, Power Automate, and Power Apps.
Python & Backend Development
Development of automation scripts, AI workflows, and backend services using Python. Experience with FastAPI, Supabase, Docker, and GitHub Actions for building and deploying scalable solutions.
Web Scraping & Data Acquisition
Building web scraping solutions using Chromium, Puppeteer, and Playwright to collect data from public and login-protected sources. Experience deploying agent services in Docker to support automated data collection workflows.
PostgreSQL & SQL Databases
Proficiency in working with PostgreSQL and SQL databases for data storage, querying, and integration. Experience connecting SQL sources to BI tools and data pipelines.
SSIS & Microsoft Purview
Knowledge of SSIS for data integration and Microsoft Purview for data governance and cataloging within enterprise data environments.
TypeScript & React (AI-assisted)
Recent experience with TypeScript and React development carried out through AI-assisted development tools including Claude Code, Codex, and Cursor.
Power Automate & Power Apps
Experience designing and maintaining solutions using Power Automate and Power Apps, including fixing legacy integrations and supporting business process automation.
Expertise in building interactive reports, paginated reports, and dashboards in Power BI using DAX, Power Query M, and data modeling. Proficiency in Power BI Service administration including workspaces, gateways, scheduled refreshes, and row-level security. Experience migrating clients from Tableau and Qlik Sense to Power BI.
Data Engineering & ETL/ELT Processes
Hands-on experience managing ETL and ELT pipelines using Azure Data Factory, Snowflake, Airflow, and Microsoft Fabric. Collecting and integrating data from diverse sources including Hadoop, PostgreSQL, JSON, REST APIs, and SQL databases. Proficiency in Azure SQL, Key Vault, and Azure DevOps for CI/CD pipelines.
AI Automation & GenAI Engineering
Building GenAI projects and AI automation workflows using Python, LLM APIs, n8n, and Claude Code. Development of RAG-based assistants and SaaS platforms that scrape and process data from multiple sources. Experience with spec-driven development and AI-assisted development tools such as Claude Code, Codex, and Cursor.
Microsoft Fabric & Azure Data Services
Practical experience with Microsoft Fabric for analytics engineering and Azure Data Factory for data integration. Familiarity with Azure Databricks, Azure SQL, Key Vault, Power Automate, and Power Apps.
Python & Backend Development
Development of automation scripts, AI workflows, and backend services using Python. Experience with FastAPI, Supabase, Docker, and GitHub Actions for building and deploying scalable solutions.
Web Scraping & Data Acquisition
Building web scraping solutions using Chromium, Puppeteer, and Playwright to collect data from public and login-protected sources. Experience deploying agent services in Docker to support automated data collection workflows.
PostgreSQL & SQL Databases
Proficiency in working with PostgreSQL and SQL databases for data storage, querying, and integration. Experience connecting SQL sources to BI tools and data pipelines.
SSIS & Microsoft Purview
Knowledge of SSIS for data integration and Microsoft Purview for data governance and cataloging within enterprise data environments.
TypeScript & React (AI-assisted)
Recent experience with TypeScript and React development carried out through AI-assisted development tools including Claude Code, Codex, and Cursor.
Power Automate & Power Apps
Experience designing and maintaining solutions using Power Automate and Power Apps, including fixing legacy integrations and supporting business process automation.
Experience
Professional experience0 - 5 years
Freelancer since2022
Languages
EnglishFluentPolishNative speaker
Project history
Co-founded the company alongside full-time work. Built a SaaS for a debt collection company that scrapes 16+ public and login-protected sources and generates AI reports. Stack: web scraping, LLM APIs, Supabase, GitHub CI/CD. Builds AI automation workflows with Python, LLM APIs, n8n and Claude Code using spec-driven development. Recent TypeScript and React work done through AI-assisted development.
Building interactive reports in Power BI and Report Builder (paginated reports). Collecting data from many sources (Hadoop, PostgreSQL, Snowflake, JSON, REST APIs) with Azure Data Factory. Managing ETL and ELT processes with Snowflake, Airflow and Microsoft Fabric, using Azure SQL and Key Vault. Preparing data models based on business requirements, including row-level security. Monitoring the Power BI Service: scheduled model refreshes, data gateway setup and data flow between workspaces. Completed a Tableau-to-Power BI migration.
Built a RAG assistant for KSeF (Poland's National e-Invoicing System).