What does Mateusz Ropiak do?

I build Power BI dashboards, data pipelines, and AI-powered automations. I have been doing this for over 5 years, with 50+ projects completed and 200+ people trained. My focus is on making reports that people actually use every day.

What services does Mateusz Ropiak offer?

I offer five main services: Power BI dashboards (reports that answer your questions at a glance), Power BI training (teach your team to build their own reports), consulting (fix slow reports and messy data models), data pipelines (get your data clean, connected, and ready), and AI-powered automation (stop doing the same thing over and over).

How much faster will my reports be after working with Mateusz?

Most performance issues can be cut by 70% or more with the right changes. I measure before and after, so you can see exactly what improved. Sometimes it is a simple DAX fix. Sometimes the whole data model needs rethinking.

What industries has Mateusz worked with?

I have worked with companies in finance, healthcare, retail, and manufacturing. Each industry has its own challenges - whether it is compliance requirements in finance, patient data in healthcare, inventory management in retail, or production analytics in manufacturing. I know what works in each.

How can I contact Mateusz Ropiak?

You can reach me through the contact form on this website, LinkedIn, or email. I usually respond within 24 hours. Free initial consultations available during business hours (9 AM - 6 PM CET, Monday to Friday).

Mateusz Ropiak

BI Developer & Data Engineer

I build dashboards people actually open, set up the pipelines that feed them, and automate the work around them.

Power BIData EngineeringAIAutomationTraining

Power BI report for helpdesk analytics — data pipeline architecture diagram showing Python ETL, DuckDB medallion layers, and star schema

Helpdesk Analytics Pipeline

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My Services

Data and Analytics

Power BI dashboards, data pipelines, AI-powered automations - I help companies make better use of their data.

Dashboards

Reports that answer your questions at a glance

Dashboards showing your key business numbers in one place
Connections to your databases, Excel files, and other systems
Complex calculations that would be a nightmare in Excel

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Training

Teach your team to build their own reports

Beginner level: How to get data in, make basic charts, share reports
Intermediate level: DAX formulas, Power Query, data modeling
Advanced level: Performance tuning, best practices, complex scenarios

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Consulting

Fix slow reports and messy data models

Full health check of your Power BI setup
Data model cleanup and optimization
DAX formula rewriting for better performance

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Data Engineering

Get your data clean, connected, and ready

Azure Data Factory pipelines — orchestration, scheduling, and monitoring of your entire data flow
Databricks & Spark transformations — processing large datasets efficiently with Delta Lake
dbt (data build tool) models — version-controlled, tested, documented SQL transformations

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Automation

Stop doing the same thing over and over

Custom n8n workflows — self-hosted, flexible, with AI nodes for LLM integration and custom logic
LLM-powered automations — integrate Claude, GPT, or other models for text analysis, generation, and decision-making
Intelligent document processing — AI extraction from invoices, contracts, emails, and forms with validation

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