Power Apps developer · Warsaw

Maxime Marcinkiewicz

I build business apps on Microsoft Power Platform that replace spreadsheets, paper forms and email chains. Certified Intelligent Applications Builder (AB-410), now connecting Power Apps with Claude for AI-assisted workflows.

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About

Ten years in IT, five of them in Power Apps

I started in IT ten years ago and have spent the last five years as a Microsoft Power Apps developer. I work with teams that need a tool fitted to the way they actually work: an approval process, an inventory tracker, a field-service app, a customer portal.

As a consultant I have delivered for clients in pharmaceuticals, banking, logistics, automotive and energy, in the United States, Germany, Austria, Italy, Bulgaria, France and Poland. I also do the business analysis, so the app solves the right problem. I take a project from the first conversation to a working app in your Microsoft 365 tenant: data model in Dataverse or SharePoint, the app itself, automations in Power Automate, and handover so your team can run it. Today I also integrate Claude into these solutions, so apps can read documents, draft replies and summarise records.

10years in IT
5years building Power Apps
7client countries, from the US to Bulgaria

Services

What I can build for you

Canvas · Model-driven

Power Apps

Custom business apps for desktop, tablet and phone, designed around your process and your users.

Power BI

Dashboards and reporting

Power BI reports with clear charts built on the same data as your apps, so managers see what is happening.

Power Automate

Workflow automation

Approvals, notifications, document generation and data sync between Outlook, Teams, SharePoint and other systems.

Dataverse · SharePoint

Data modelling

Clean tables, relationships, business rules and security roles, so the app stays reliable as it grows.

Copilot · Claude

AI integration

Copilot features and Claude connected to your apps: document reading, smart summaries and drafting inside your workflow.

SharePoint · Nintex

SharePoint migration

Moving old SharePoint On-Prem solutions and Nintex workflows to SharePoint Online and Power Platform.

Audit · Rebuild

Fixing existing apps

Slow galleries, delegation warnings, broken flows. I review what you have and make it fast and maintainable.

Handover

Training and support

Documentation and sessions for your makers and admins, in French, Polish, English or Spanish.

Customers

Companies I have built for

Power Platform, SharePoint and .NET projects delivered for international companies in energy, pharmaceuticals, banking, industry and IT services.

Expert

Power Apps · Power Automate · SharePoint Online

Advanced

SharePoint On-Prem · PowerShell · Nintex

Also

Copilot Studio · Power BI · Azure · C#/.NET · SQL Server · JavaScript · Claude

Education

Master’s degree in Information Technology, EPF, Sceaux (France)

Certification

Microsoft certified

AB-410Microsoft

Intelligent Applications Builder Associate

Earned by passing exam AB-410, Building Intelligent Applications. It covers designing and building AI-powered business apps on Power Platform with Power Apps, Dataverse, Power Automate, Copilot and Copilot Studio.

Languages

Born in Paris, based in Warsaw

French and Polish, with both nationalities. I work with clients across Europe and beyond, remotely or on site in Warsaw.

BornParis, France
Lives and worksWarsaw, Poland

Contact

Have a project in mind?

Send me an email. I reply within one business day.

To get a quick estimate, tell me:

  1. What process you want to improve, and who uses it today
  2. Where your data lives (Excel, SharePoint, Dataverse, another system)
  3. Your timeline and preferred language