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Campus Area Network Administrator Security Clearance

Job in Chantilly, Fairfax County, Virginia, 20151, USA
Listing for: Arion Systems, inc
Full Time position
Listed on 2026-06-30
Job specializations:
  • IT/Tech
    Cybersecurity, Network Engineer, Network Security, Systems Administrator
Job Description & How to Apply Below
Position: Campus Area Network Administrator with Security Clearance
Position Summary The Campus Area Network Administrator is responsible for the administration, maintenance, monitoring, and support of the organization's campus-wide network infrastructure. This role focuses on ensuring the reliability, performance, and security of wired network services while providing advanced troubleshooting and operational support for complex network environments. The ideal candidate possesses strong hands-on experience with Cisco networking technologies and demonstrates the ability to diagnose and resolve complex network issues affecting multiple systems, locations, and services.

Essential Duties and Responsibilities Network Administration and Support
- Administer and support enterprise campus network infrastructure including LAN, WLAN, WAN, and internet connectivity.

- Configure, maintain, and troubleshoot Cisco routes, switches.

- Monitor network performance, availability, and capacity using enterprise network management tools.

- Perform routine maintenance, upgrades, patching, and configuration changes to network equipment.

- Maintain network documentation, diagrams, inventories, and standard operating procedures. Cisco Infrastructure Management
- Support Cisco Catalyst switching platforms and Cisco routing technologies.

- Configure and maintain VLANs, trunking, Spanning Tree Protocol (STP), Ether Channel, HSRP, and routing protocols such as OSPF and BGP.

- Support Cisco security technologies including firewalls, VPNs, and access control lists (ACLs). Advanced Troubleshooting
- Investigate, diagnose, and resolve complex network issues impacting connectivity, performance, voice, video services.

- Perform packet captures, protocol analysis, and root cause investigations using tools such as Wireshark and Cisco diagnostic utilities.

- Analyze network logs, system alerts, and performance metrics to identify and resolve recurring issues.

- Escalate and coordinate problem resolution with vendors, service providers, and internal technical teams when necessary.

- Lead incident response efforts for major network outages and service disruptions. Network Security and Compliance
- Implement and maintain network security standards, policies, and procedures.

- Monitor network infrastructure for vulnerabilities, unauthorized access, and security threats.

- Support security audits, compliance initiatives, and remediation activities.

- Assist in maintaining secure segmentation of network resources through VLANs, ACLs, and firewall policies. Project Support
- Participate in campus network expansion, modernization, and technology refresh projects.

- Assist with planning and deployment of new network services and infrastructure.

- Evaluate emerging technologies and recommend improvements to network operations and performance.

- Collaborate with system administrators, cybersecurity teams, telecommunications staff, and business stakeholders.

Required Qualifications Clearance - TS/SCI with CI Poly preferred Education
- Bachelor's degree in Information Technology, Computer Science, Network Engineering, or a related field; or equivalent combination of education and experience.

- 10+ years of related experience and/or associate degree Experience
- Minimum of 3-5 years of experience administering enterprise network environments.

- Experience supporting large-scale campus or multi-building network infrastructures.

- Demonstrated experience with Cisco networking technologies in a production environment.

- Experience troubleshooting complex network performance and connectivity issues. Required Technical Skills Cisco Technologies
- Cisco Catalyst switches
- Cisco routers
- Cisco ISE (preferred) - Cisco DNA Center (preferred) - Cisco VPN Solutions Networking - TCP/IP - IPv4/IPv6 - VLANs and trunking - OSPF, BGP, EIGRP - STP and Rapid STP
- Ether Channel - DHCP, DNS, NTP
- Qos
- Network segmentation and redundancy technologies Security
- Access Control Lists (ACLs) - VPN technologies
- Network Access Control (NAC) - Firewalls
- Multi-factor authentication integration
- Security monitoring and incident response Troubleshooting Tools
- Wireshark
- Network monitoring and logging platforms
- Packet analysis and traffic diagnostics tools Knowledge, Skills, and Abilities
- Exceptional troubleshooting and analytical skills with the ability to resolve complex, multi-layered network issues.

- Strong understanding of enterprise networking concepts and best practices.

- Ability to identify root causes and implement long-term corrective actions.

- Excellent written and verbal communications kills.

- Ability to prioritize multiple tasks and manage competing priorities.

- Strong customer service and stakeholder engagement skills.

- Ability to work independently and as part of a collaborative IT team.

- Ability to respond to after-hours emergencies and planned maintenance activies. Preferred Certifications
- Cisco Certified Network Associate (CCNS) - Cisco Certified Network Professional (CCNP) - Cisco Certified Internetwork Expert (CCIE) - CompTIA Network+ - CompTIA Security+…
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