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Linux System Administrator with Security Clearance

Job in Herndon, Fairfax County, Virginia, 20170, USA
Listing for: AV, Inc.
Full Time position
Listed on 2026-08-18
Job specializations:
  • IT/Tech
    Cybersecurity, Systems Administrator, IT Support
Salary/Wage Range or Industry Benchmark: 80000 - 100000 USD Yearly USD 80000.00 100000.00 YEAR
Job Description & How to Apply Below
Worker Type Regular

Job Description Are you looking for a with unique opportunity to learn and grow as a Linux System Administrator. If so, AV is looking for you to join the Cyber and Intel Division's Operation Infrastructure Team. This team is responsible for full life-cycle management of 24x7 mission-focused infrastructure hosting tailored applications and solutions. You will be responsible for the day-to-day operations of deployed systems to include monitoring, auditing, log review, maintenance, troubleshooting, and after-hours response.

You should have a strong foundation in both Linux system and network administration with a security-oriented mindset. You will assist in continually improving and growing our Network Operations Center (NOC) capability and define standard operating procedures following best practices. In the event of alerts, emergencies, or planned maintenance activities, after-hours support will occasionally be required. As such, excellent verbal and written communication skills, time-management skills, and a customer-focused mindset are required.

This is an excellent opportunity to grow your depth and breadth of skills and a path toward more advanced network and solution engineering with direct mission impact

Position Responsibilities:

* Establish Standard Operating Procedures for all NOC activities
* Ensure all deployed systems are operational and accessible by end-users
* Quickly and appropriately respond to network outages and security incidents
* Configure and manage NOC monitoring dashboards, alerting, and coordinated response
* Review and audit system logs daily
* Interface with customers to resolve system issues and access requests
* Perform system troubleshooting and escalate when appropriate
* Coordinate and execute system updates
* Thoroughly document all actions, incidents, and findings to include monthly reporting
* Assist with implementing automated monitoring and alerting systems
* Routine monitoring and integrity verification of system backup
* Conduct periodic vulnerability scans to ensure compliance with system specifications
* Provide feedback to software developers on system performance, issues, and customer experience
* Proactively communicate with team members and management
* Continually monitor trends in the IT industry for new products and security advisories to better protect deployed system capabilities Basic Qualifications (Required Skills & Experience)
* Bachelor's degree in information technology (or a related field) or equivalent hands-on experience
* 3+ years experience in Linux system administration
* 2+ years experience in log analysis and system auditing
* 2+ years experience in network administration
* 2+ years experience in network functional status monitoring and alerting (2 years)
* An active SECRET level clearance. Candidate must be willing to process for TOP SECRET clearance. A TOP SECRET clearance is required throughout the duration of this position.
* Security-minded approach to all engineering and administration efforts
* Strong communication skills, (both written and verbal) and technical documentation skills
* Detail-oriented and critical thinking mindset Desired Qualifications
* An active TOP SECRET Clearance.
* NOC/SOC Experience
* Knowledge of Splunk (Including development of searches, reports, and dashboards)
* Experience with Zabbix
* Working knowledge of Ansible and other automation toolsets
* Experience with Network and Host based IDS Systems
* Netflow analysis skills
* Familiar with Python and Bash scripting
* Experience with network analysis and troubleshooting tools (i.e., Wireshark and tcpdump)
* Vulnerability and compliance scanning with Nessus and other toolsets
* Familiarity with Virtualization Technologies such as VMware and Proxmox
* Experience with containerization and Docker
* Understanding of VPN Technologies such as IPsec or OpenVPN
* Understanding of SSL/TLS configurations and certificate management
* Willingness to support end-users to include after hours on-call support Location This position is located at 13900 Lincoln Park Dr Herndon, VA 20171. This position is full time in-office. Salary Range $80,000 to $100,000 ITAR Requirement:
This position requires access to information that is subject to compliance with the International Traffic Arms Regulations ("ITAR") and/or the Export Administration Regulations ("EAR"). In order to comply with the requirements of the ITAR and/or the EAR, applicants will be asked to provide specific documentation to verify U.S. person status under the ITAR and the EAR. A "U.S. person" according to their definition is a U.S. citizen, U.S. lawful permanent resident (green card holder), or protected individual such as a refugee, or asylee.

See 22 CFR § 120.15. Some positions will require current U.S. Citizenship due to contract requirements. Benefits: AV offers an excellent benefits package including medical, dental vision, 401K with company matching, a 9/80 work schedule and a paid holiday…
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