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

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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