geocgi is looking for a GIS Subject Matter Expert / Senior GIS Solutions Engineer to provide technical support for the NATO Communications and Information Agency (NCIA) Geospatial Services Branch. The GIS Subject Matter Expert / Senior GIS Solutions Engineer will be responsible for modernizing NATO’s enterprise GIS system throughout the region. The GIS Subject Matter Expert / Senior GIS Solutions Engineer will install/upgrade, configure, test, and document ArcGIS Enterprise from version 10.8 to 11.3 and again thereafter; upgrade and manage ArcGIS Server; upgrade and/or migrate Portal for ArcGIS content, and administer enterprise geodatabases. Information technology environments are anticipated to be on-premises and then Azure cloud. This position includes significant support around load balancing, IIS, firewall configuration, network hardening, DNS configuration, patch management, sFTP/FTP, security policy configuration, and best practices.