ArcGIS Systems Administrator (Top Secret Clearance Required)

Ardent is seeking an ArcGIS Systems Administrator to join our team! ***Salary Range from $150k to $210k + Sign-on Bonus*** This is a full-time, on-site position in Washington, DC - candidates must currently hold an active TOP SECRET Clearance . Position Description: Ardent is seeking an experienced ArcGIS Systems Administrator to support the migration, installation, configuration, security, and day-to-day administration of an Esri ArcGIS Enterprise Microsoft Azure environment with the FBI. This role ensures the GIS platform remains stable, secure, and highly available for mission-critical geospatial operations, and serves as the primary point of contact for system-level GIS support. Responsibilities and Duties: Perform and lead Windows Server 2025 upgrade; Azure Application Gateway v2 upgrade; ArcGIS Enterprise upgrade, O&M troubleshoot and technical issue resolution; recurring OS and security patches. Configure and maintain federated server sites and hosting servers, and support integration with relational databases such as SQL Server, Oracle, or PostgreSQL. Install, configure, and maintain ArcGIS Enterprise components, including Portal for ArcGIS, ArcGIS Server, ArcGIS Data Store, and Web Adaptor, across development, test, and production environments. Administer enterprise and file geodatabases, including schema management, versioning, replication, and performance tuning. Manage user accounts, roles, groups, and security permissions within ArcGIS Enterprise, Portal, and ArcGIS Online. Monitor system health and performance, troubleshoot service outages and errors, and apply patches, upgrades, and security updates. Implement and maintain backup, disaster recovery, and business continuity procedures for the GIS environment. Administer software licensing and support deployment of ArcGIS Pro and related Esri applications to end users. Collaborate with cartographers, analysts, and IT staff to support geospatial data workflows and resolve system-level issues. Document system configurations, standard operating procedures, and change management activities. Support platform and version migrations, such as ArcGIS Server or Portal upgrades and infrastructure or data migrations, as needed. Requirements: Active Top Secret clearance is required, along with a willingness to undergo a Counterintelligence (CI) polygraph within three (3) months of hire. Minimum of 5 years of experience administering Esri ArcGIS Enterprise systems (ArcGIS Server, Portal for ArcGIS, ArcGIS Data Store) in a production environment. Bachelor’s degree in GIS, computer science, information technology, or a related field; Veteran’s equivalent experience may be considered in lieu of a degree. Strong working knowledge of enterprise geodatabase administration (SDE) and relational database platforms such as SQL Server, Oracle, or PostgreSQL. Experience administering Windows Server and/or Linux server environments in support of enterprise…