System Administrator
On-siteArlington, Virginia, United States
Job Summary
Administer, maintain, and monitor enterprise systems and infrastructure supporting Operations and Sustainment activities, including geospatial platforms like ESRI, MapView, and CFATS. Install, configure, patch, and upgrade operating systems, middleware, and application servers while troubleshooting hardware, software, and integration issues. Manage user accounts, permissions, and access controls; coordinate system changes, upgrades, and releases to minimize disruptions. Support disaster recovery, backup validation, and continuity of operations, performing root cause analysis for outages and incidents. Develop system documentation, configuration baselines, and operational procedures. Collaborate with developers, engineers, and cybersecurity teams to support enhancements, implement security requirements, and maintain compliance. Provide technical assistance to users and assist in supervising junior staff. Participate in incident, problem, and change management processes within cloud-hosted and on-premises environments.
Required Qualifications
- Associate's Degree or Technical Certification in Information Technology, Computer Science, Information Systems, Engineering, or a related discipline
- Minimum of three (3) years of experience administering and supporting IT systems, applications, or infrastructure
- Experience providing operational support and sustainment for enterprise technology environments
- Experience with system administration activities, including software installation, patch management, account administration, and system monitoring
- Familiarity with ESRI technologies, GIS platforms, geospatial applications, and supporting infrastructure
- Knowledge of Windows and/or Linux operating systems and associated system administration functions
- Experience troubleshooting infrastructure, application, and system performance issues
- Demonstrated experience providing technical guidance or supervising technical personnel
- Familiarity with IT service management processes, including incident, problem, and change management
- Strong analytical, troubleshooting, and problem-solving skills
- Excellent written and verbal communication skills
- Ability to work independently and collaboratively in a team-oriented environment
- U.S. Citizen
- Ability to obtain and maintain a DHS Suitability determination, Public Trust, Secret, or higher security clearance as required by the contract
Desired Qualifications
- Bachelor's Degree preferred
- Experience supporting MapView, CFATS, or other mission-support platforms
- Experience supporting Department of Homeland Security (DHS) and/or Cybersecurity and Infrastructure Security Agency (CISA) operational environments
- Experience administering ESRI ArcGIS Enterprise, ArcGIS Server, ArcGIS Portal, ArcGIS Online, or related GIS technologies
- Experience supporting geospatial databases such as SQL Server, Oracle, PostgreSQL/PostGIS, or similar platforms
- Familiarity with map services, geospatial data publishing, and GIS application sustainment
- Experience supporting cloud environments including AWS or Microsoft Azure
- Knowledge of cybersecurity best practices, vulnerability remediation, and system hardening requirements
- Experience with automated monitoring, scripting, and operational reporting tools
- Familiarity with ITIL-based service management practices
- Relevant certifications such as CompTIA Security+, Network+, Linux+, Microsoft Certified, AWS Cloud Practitioner, GISP, Esri Technical Certification, or equivalent
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