Systems and Network Administrator

Primary Responsibilities

• Administer and maintain the organization’s CUI network and overall systems infrastructure in the interest of maintaining compliance with applicable federal regulations and cybersecurity frameworks.
• Configures, monitors, and troubleshoots Cisco switches, routers, and wireless equipment as part of day-to-day operations.
• Administers Cisco ISE to manage network access, authentication, and policy enforcement.
• Manages Palo Alto firewalls, including maintaining security rules, configuring VPNs, and monitoring for potential threats.
• Supports Microsoft 365 services such as Exchange Online, SharePoint, Teams, and identity management.
• Manages Active Directory, Group Policy, DNS, DHCP, and other authentication systems.
• Supports Atlassian tools like Jira and Confluence used for ticketing, documentation, and internal workflows.
• Respond to urgent network or infrastructure incidents and support after-hours troubleshooting when required.
• Manages and configures both Windows 11 and RHEL operating systems.
• Maintains network performance and troubleshoots connectivity issues across LAN, WAN, and VPN connection.
• Assists with endpoint management, patching, and configuration compliance for both Windows and Linux systems.
• Effectuates CMMC requirements, including documentation, implementation of security controls, and audit preparation.
• Works closely with the team, other business operations members, and engineers to keep systems running securely and reliably.

Required Qualifications

• 5–8 years of IT experience
• Minimum of 3 years networking experience
• Current CompTIA Security+ certification
• Must be a U.S. Citizen with an active DoD Secret Clearance
• Strong experience with Cisco networking technologies (switching, routing, VLANs, ACLs, etc.)
• Experience administering Palo Alto firewalls and security policies
• Experience supporting Microsoft 365 environments
• Strong knowledge of Active Directory and Windows Server administration
• Experience with network troubleshooting tools and monitoring platforms
• Strong documentation skills and familiarity with IT change management processes
• Ability to troubleshoot complex infrastructure issues across systems and networks

Preferred Qualifications

• Experience working in CMMC, NIST 800-171, or similar environments
• Hands-on experience with Cisco ISE for network authentication and access control
• Cisco CCNA or CCNP certifications
• Active DoD Secret clearance