More stable, flexible and cost-effective infrastructure.
Modernization of a corporate GIS platform from ArcGIS to an open-source stack built on QGIS, GeoServer, and OpenLayers, reducing vendor lock-in and expanding architectural flexibility.
- Selected a suitable open source GIS platform for migration from ArcGIS and conducted comparative tests of functionality and performance.
- Migrated the ArcSDE database to a "clean" PostgreSQL + PostGIS environment.
- Created and configured maps in GeoServer (thousands of layers and styles) based on the ArcGIS setup.
- Configured caching (MBTiles) for required maps in GeoServer using GWC.
- Adapted all corporate applications to use OGC protocols (WMS, WFS, WPS, WMTS) and the GeoServer REST API instead of the ArcGIS Server API.
- Developed software for authentication and authorization via the corporate Active Directory.
- Implemented mechanisms for scaling GeoServer.
- Optimized GeoServer settings for a production environment and conducted comparative load tests.
- Documented and tested all system components, performed debugging, and deployed the system into production.
