Weekend System Administrator Jobs in Reston, VA (NOW HIRING)

System Administrator

Responsibilities and Duties

• Administer, maintain, monitor, and support enterprise systems and infrastructure supporting Operations and Sustainment activities.
• Provide operational support for geospatial platforms and applications, including ESRI, MapView, CFATS, and supporting GIS technology stacks.
• Install, configure, patch, upgrade, and maintain operating systems, middleware, application servers, and enterprise software.
• Monitor system health, performance, availability, and capacity to ensure reliable and continuous operations.
• Troubleshoot and resolve hardware, software, application, and system integration issues.
• Perform routine maintenance activities, including system updates, patch deployment, backup validation, and configuration management.
• Support administration of GIS environments, geospatial databases, map services, and web-based mapping applications.
• Manage user accounts, permissions, and access controls in accordance with organizational security policies and procedures.
• Coordinate system changes, upgrades, and releases to minimize operational disruptions.
• Support disaster recovery, backup, and continuity of operations activities.
• Perform root cause analysis for system outages, performance degradation, and operational incidents.
• Develop and maintain system documentation, configuration baselines, operational procedures, and support guides.
• Collaborate with developers, engineers, database administrators, and cybersecurity teams to support system enhancements and operational improvements.
• Support implementation of cybersecurity requirements, vulnerability remediation, and compliance initiatives.
• Monitor and maintain system logs, alerts, and operational dashboards to identify issues and improve service delivery.
• Support cloud-hosted and on-premises environments as required by customer operations.
• Participate in incident management, problem management, and change management processes.
• Provide technical assistance and guidance to system users, administrators, and support personnel.
• Assist in supervising junior administrators, support staff, and contractors performing operational activities.
• Support continuous improvement initiatives focused on operational efficiency, system reliability, and customer satisfaction.

 Basic Qualifications

• Associate's Degree or Technical Certification in Information Technology, Computer Science, Information Systems, Engineering, or a related discipline.
• Bachelor's Degree preferred.
• 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.
• Experience supporting MapView, CFATS, or other mission-support platforms preferred.
• 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.

 Preferred Qualifications

• 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.