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Cyber Systems Administrator Security Clearance

Job in Herndon, Fairfax County, Virginia, 20170, USA
Listing for: Peraton
Full Time position
Listed on 2026-06-05
Job specializations:
  • IT/Tech
    Cybersecurity, IT Support, Systems Engineer
Job Description & How to Apply Below
Position: Cyber Systems Administrator with Security Clearance
About Peraton Peraton is a next-generation national security company that drives missions of consequence spanning the globe and extending to the farthest reaches of the galaxy. As the world's leading mission capability integrator and transformative enterprise IT provider, we deliver trusted, highly differentiated solutions and technologies to protect our nation and allies. Peraton operates at the critical nexus between traditional and nontraditional threats across all domains: land, sea, space, air, and cyberspace.

The company serves as a valued partner to essential government agencies and supports every branch of the U.S. armed forces. Each day, our employees solve the most daunting challenges that our customers face. Visit  to learn how we're keeping people around the world safe and secure. About

The Role Currently seeking a Cyber Systems Administrator to support an Intel Community (IC) customer in the Herndon, Virginia area. The Systems Administrator provides mid-level operational support for enterprise information systems within classified environments. This role is execution-focused and emphasizes privileged system administration, security tool operations, log analysis, scripting, and audit evidence production. Systems Administrator IV supports ongoing Authorization to Operate (ATO) activities by maintaining system security posture, generating technical artifacts, and implementing approved security controls under the direction of Information System Security Officers (ISSOs), System Engineers, and audit leads or audit SMEs.

This position requires hands-on experience administering Windows and Linux systems, executing Splunk queries, developing operational scripts, and supporting compliance activities through accurate and timely evidence generation. Systems Administrator responsibilities for conducting information system activities for new or existing system(s) may include, but not limited to, the following:
* Perform Systems Administrator activities for Windows and Linux environments, including configuration, hardening, patching, and operational sustainment.

* Maintain and operate systems requiring privileged user access, ensuring least-privilege enforcement and auditability.

* Support system lifecycle activities including design changes, re-engineering efforts, upgrades, and performance tuning.

* Troubleshoot complex system issues across infrastructure, applications, and security tooling.

* Develop, maintain, and optimize Splunk searches, dashboards, and alerts to support, Security monitoring, audit evidence collection, and operational troubleshooting

* Write and refine Search Processing Language (SPL) queries to extract, correlate, and validate log data across multiple data sources.

* Ensure log sources are properly onboarded, retained, and aligned with audit and compliance requirements.

* Develop and maintain scripts (e.g., Power Shell, Bash, Python, SQL) to automate data collection for audits, validate system configurations, and support continuous monitoring activities

* Assist with automating evidence generation for recurring FISCAM, RMF, and internal audits.

* Provide technical support to Audit SMEs and ISSOs by producing, validating, and explaining system-level artifacts required for FISCAM audits and RMF assessments.

* Support documentation and validation of technical controls related to logging and monitoring, configuration management, access control, system integrity

* Assist in responding to audit findings, including root cause analysis and technical remediation.

* Work closely with ISSOs, ISSEs, auditors, and operations teams to ensure systems are both secure and operationally effective.

* Translate technical system behavior into clear, defensible explanations for auditors and assessors.

* Participate in engineering reviews, change control boards, and security assessments as needed.
Qualifications

Required Qualifications:

* Bachelor's degree in an area relevant to the position and 8+ years of relevant experience;
Master's degree in an area to the position and 6+ years of relevant experience; or 4+ additional years of experience in lieu of a degree.

* TS/SCI with polygraph clearance adjudication or ability to obtain SCI and pass a poly

* Hold active Security+, CISSP, CISA, or equivalent certifications (DoD 8570 IAM 2 equivalent)

* One (1) year of experience with IC Community

* Experience in systems engineering or system administration in enterprise environments.

* Hands-on experience with Splunk (searches, dashboards, or administration).

* Experience using scripting or query languages (Power Shell, Bash, Python, SQL).

* Familiarity with RMF, ATO processes, and audit support in federal environments.

* Ability to operate with privileged system access in classified environments.

* Proven experience with Linux/Red Hat 8 or higher, Windows Server 2019 or higher and/or Networking Appliances in Virtualized/Cloud platforms (VMSphere or AWS)

* Proven experience with Oracle 19C or higher or SQL 2019 or higher database systems

*…
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