I had the pleasure of being interviewed by Safae Alaa for the To Open Doors I.Talk podcast, and our conversation went through my 25-year journey in GIS.
Do you need help with
Open Source GIS?
I'm Hans van der Kwast. With more than 20 years of experience with GIS and Remote Sensing in education and projects, I'm now offering consultancy, training and coaching in open source GIS. I'm an active member in the QGIS community, a QGIS certified trainer, and board member of the Dutch QGIS User Group. I've established the GIS OpenCourseWare platform for sharing free course materials on QGIS, Python, Mergin Maps, Google Earth Engine and much more. The PCRaster Tools plugin for QGIS that I've developed has been downloaded more than 70k times. Furthermore, I'm co-author of the book QGIS for Hydrological Applications and I have a YouTube Channel with more than 30k subscribers. As a member of QCooperative, I'm well connected with the best open source GIS developers.
Consultancy
Are you struggling with your GIS work flows?
I offer online consultancy on GIS work flows with QGIS, Mergin Maps, Python, PCRaster, WebODM, GDAL and other open source software.
Online training
Do you need a GIS training?
I create online tailor-made training on open source GIS software and Python. For QGIS I provide the official QGIS certificate.
Coaching
Are you looking for a coach?
I provide online coaching sessions to beginning and more advanced GIS professionals. Topics for coaching could be on open source business model development, marketing or GIS career development.
Free services
Are you looking for free training materials?
Check my YouTube Channel and the GIS OpenCourseWare platform for free videos and step-by-step tutorials. These come without support and without certificates.
My latest blog posts
This past week, I had the incredible opportunity to attend the QGIS User Conference and Contributor Meeting in the beautiful city of Norrköping, Sweden. The event was held at the Visualization Center C, Cnema, and Campus Norrköping of Linköping University—an inspiring venue rich in industrial heritage and scenic waterways that provided the...
QWAST Cloud
10/05/2025
We recently transitioned from proprietary solutions to Nextcloud Private Cloud, hosted by TAB.Digital at a server in the Netherlands. The move was driven by our commitment to privacy, security, and digital sovereignty, and we're happy to share that the transition was smooth and seamless!
The instructions in the book QGIS for Hydrological Applications, 2nd Editon, were written for QGIS 3.22. Since then some features have changed. This blog gives an overview of the most important changes per chapter.