Requires knowledge of geodatabase (GDB) structure and components: Feature Datasets, Geometric Network Datasets, Utility Network Datasets, Feature Classes, Versioning, Archiving, GDB Compression, GDB Indexing, Coded Domains and Subtypes, ArcGIS Administrator, Oracle SQL Developer to create and manage users. Requires knowledge of ArcGIS Server Endpoints and Portal for ArcGIS Endpoints, ArcGIS Desktop, Server, Portal and Online environments and their relationships, publishing and organizing services for Portal and ArcGIS Online to be consumed on PC and Mobile devices.