Geert van der Cruijsen

Geert has a passion for technology and gadgets and that’s why he started building mobile apps several years ago. Meet Geert van der Cruijsen, trainer at Xebia Academy. Geert is a Microsoft trainer and trains on behalf of Xebia courses like Native Mobile Apps with Xamarin Across All Platforms.

In his career spanning over 10 years in IT Geert has worked as a consultant and technical architect on several large business apps and projects with clients like Nokia, KPN & Heineken.

Next, to his expertise in Mobile application development, Geert also has a lot of experience in ALM regarding Mobile application development, standardizing and streamlining the development of apps for enterprises. 

Geert is also an active user, speaker, and blogger in the Microsoft community. He has spoken at events like Microsoft Techdays and local meetups such as .NET Mobile Developers group. Geert writes and speaks about everything related to mobile technology and his interests both professional and personal. 

In his spare time, Geert likes to build apps for the Windows platform such as Game Streams, the most downloaded and best rated Twitch client for the Windows platform. When Geert is not sitting behind his laptop Geert likes to travel the world with his wife Patty and daughter Lauren, cook food from the places he has visited and taste different beers to increase his Untappd score. 
Geert is also an active user, speaker, and blogger in the Microsoft community. He has spoken at events like Microsoft Techdays and local meetups such as .NET Mobile Developers group. Geert writes and speaks about everything related to mobile technology and his interests both professional and personal. 

In his spare time, Geert likes to build apps for the Windows platform such as Game Streams, the most downloaded and best rated Twitch client for the Windows platform. When Geert is not sitting behind his laptop Geert likes to travel the world with his wife Patty and daughter Lauren, cook food from the places he has visited and taste different beers to increase his Untappd score. 

Upcoming courses

Professional Agile Leadership Essentials (PAL-E)

Master Agile leadership and boost your Scrum Team’s and organization’s performance with our PAL-E training.

Ron Eringa

Agile Leadership
Scrum.org
2 days
In Person

Next:

13 – 14 Oct, 2025

From:

€1795

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Certified Scrum Product Owner (CSPO)

Become a Certified Scrum Product Owner (CSPO) for optimal product delivery. Learn the skills and tools you need to excel in this pivotal role.

Gino Shahidi

Product Owner
Scrum Alliance
2 days
In Person

Next:

16 – 17 Oct, 2025

From:

€1595

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Organizational Behavior Management (OBM) Foundation™

Unlock your team’s potential with our Organizational Behavior Management (OBM) Foundation training. Read more!

Chris Baron

Agile Leadership
Product Leader
3 days
In Person

Next:

28 Oct, 2025

From:

€1925

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Data Warehousing and Data Modeling

Build a solid foundation of data warehousing and modeling with this training. You’ll learn everything about data warehouse architectures, formal data modeling, performance tuning and more.

Lucy Sheppard 

Data Engineering
Data Modeling
data warehousing
1 day
In Person

Next:

7 Nov, 2025

From:

€725

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Deep Learning and AI in One Day

Enrico Erler

Deep Learning
1 day
Virtual

Next:

10 Nov, 2025

From:

€670

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