System Administrator

• Support the Office of Information Technology, Finance and Administration, and the agency's IT operations, infrastructure, and security operations
• Ensure operation of enterprise network servers and Microsoft Office 365 cloud server infrastructure
• Administer on-premise Active Directory and data center servers, including DNS and DHCP using Cisco Meraki switches
• Configure and manage Cisco Meraki switches, firewalls, and core security components
• Maintain operating systems, vendor versions, Microsoft Defender, Qualys patch and vulnerability management, and mobile device management
• Administer Okta Single Sign-On, application publishing, and Cloud-Gen zero-trust external application tunneling
• Provide expert consultation and administration for Microsoft Azure, Exchange Online, SharePoint Online, Microsoft Intune, Microsoft Teams, and OneDrive for Business
• Administer and upgrade VOIP infrastructure, including Cisco Unified Communications Manager, Cisco Unity Connection, and Cisco Voice Gateway
• Administer Microsoft Sentinel log management and Barracuda Zero Trust Remote Access
• Provide administrative support for the public website and grant management system, including user permissions, employee deactivation, and incident escalation
• Assist with FISMA activities, NIST security controls, continuous monitoring, vulnerability remediation, DHS CDM implementation, and security assessments and accreditation
• Maintain security systems, patch management, SIEM event logs, and vulnerability documentation
• Update standard operating procedures and network diagrams
• Manage hypervisor infrastructure, hardware upgrades, change control, planning, and coordination

System Administrator jobs in District of Columbia

Senior IT Systems Administrator