Waldek Mastykarz
Microsoft Corp
Developer Advocate
Netherlands
Build apps for Microsoft 365
Microsoft 365 Developer Advocate
Waldek can deliver sessions in
English
Dutch
Flemish
Polish
Connect with Waldek
Upcoming Speaking Engagements
Where to Catch Waldek Next
European AI and Cloud Summit 2026
European AI and Cloud Summit 2026
Build robust LLM-powered apps
05/05/2026
Confex - Koelncongress
Cologne, Germany
ai
European AI and Cloud Summit 2026
European AI and Cloud Summit 2026
Make your coding agent actually work for you
05/05/2026
Confex - Koelncongress
Cologne, Germany
ai
Past Speaking Engagements
A Look Back at Past Speaking Engagements
CollabDays Netherlands 2025
CollabDays Netherlands 2025
Everyday AI: How We Actually Use It
21/06/2025
Van der Valk Hotel, Vianen
Vianen, Netherlands
ai
copilot
ECS 2025
ECS 2025
Microsoft 365 Copilot extensibility using VS Code - hands-on workshop
26/05/2025
Congress Center Düsseldorf
Düsseldorf, Germany
copilot
ECS 2025
ECS 2025
Everyday AI: How We Actually Use It
26/05/2025
Congress Center Düsseldorf
Düsseldorf, Germany
community
European AI and Cloud Summit 2025
European AI and Cloud Summit 2025
Build apps that don't fail in production
26/05/2025
Congress Center Düsseldorf
Düsseldorf, Germany
cloud
ai
testing
apis
European Collaboration Summit 2024
European Collaboration Summit 2024
Build apps that don't fail in production
14/05/2024
Rheinmain Congresscenter
Wiesbaden, Germany
microsoft-365
development
microsoft-graph
sharepoint-online
testing
apis
European Collaboration Summit 2023
European Collaboration Summit 2023
Celebrating 10 years of European Collaboration Summit with Microsoft
22/05/2023
Congress Center Düsseldorf
Düsseldorf, Germany
keynote
European Collaboration Summit 2023
European Collaboration Summit 2023
Build resilient production apps with Microsoft Graph
22/05/2023
Congress Center Düsseldorf
Düsseldorf, Germany
developer
microsoft-365
microsoft-graph
testing
production