Job Location: Fairfax, Virginia, United States (Onsite/Remote) • Design, implement, maintain and support enterprise GIS systems and applications. • Experience administering ArcGIS Enterprise Portal for ArcGIS, ArcGIS Server (including other roles such as Image Server, Business Analyst Enterprise) and/or ArcGIS Online. • Determines requirements for new GIS systems. Performs performance tuning, troubleshooting and diagnostic operations. • Should have experience with full enterprise GIS stack including enterprise GIS databases, desktop GIS applications, web based GIS platforms and applications (ArcGIS Online, VertiGIS Studio). • Experience customizing and extending base software (ArcGIS Pro extensions, custom controls, etc.)