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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Systems Administrator (SA) - **Company:** The Modern - **Location:** McLean, VA, United States - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Microsoft Windows, Cloud Computing, Configuration Management, CompTIA Security+, Cyber Security, Information Systems, Linux, DevOps, Security Content Automation Protocol, Systems Architecture, Software Vulnerability Management, Wide Area Networks, SARS Software Products, Information Technology, Nessus, Devsecops, Vulnerability Analysis - **Published:** August 20, 2026 - **Apply:** https://www.dice.com/job-detail/1182d02d-dbef-4869-8d51-573ad6b569d2 ## About the Role The ideal candidate brings hands-on experience with system hardening, vulnerability management, and system administration in NRO-sponsored CWAN infrastructure, along with the ability to collaborate effectively across technical and program teams in classified environments., * Must possess an active Department of Defense (DoD) TS/SCI with CI Polygraph security clearance. * Bachelor's degree in Computer Science, Information Systems, Cybersecurity, Information Technology, or related field. * 5+ years of experience in systems administration within a federal or DoD environment. * Working familiarity with the Risk Management Framework (RMF) and associated documentation. * Hands-on experience with system hardening, vulnerability management, and security control implementation on Linux and/or Windows platforms. * Working knowledge of NIST 800-53, CNSSI 1253, DoD 8510.01, and FISMA standards. * Proficiency with common security tools such as ACAS, Nessus, STIG Viewer, or SCAP. * Strong communication and documentation skills for preparing technical reports and security artifacts. * Ability to collaborate across multidisciplinary technical teams and engage with government stakeholders. PREFERRED SKILLS AND QUALIFICATIONS * Current Privileged User Access (PUA) on an active program or system. * Direct experience implementing, administering, and/or maintaining NRO-sponsored CWAN infrastructure. * DoD 8570 IAT Level II/III certification (e.g., Security+, CISSP, CISM, CASP). * Experience supporting RMF-based ATO processes for classified or cloud-based environments. * Familiarity with Secure DevOps/DevSecOps pipelines and automation tools. * Experience supporting DoD, IC, or other federal mission systems. *Applicants selected will be United States citizens and may be subject to a government security investigation for access to classified information.* ## Description Modern Government Solutions (MGS) is seeking a Systems Administrator (SA) to support the implementation, hardening, and maintenance of secure systems for mission-critical government programs. The SA will work alongside the program's ISSE and security team to implement technical controls, maintain system security posture, and support the ongoing fielding and maintenance of a Top Secret Contractor Wide Area Network (CWAN)., * Implement and maintain technical security controls across system architectures in coordination with the program's ISSE and security engineering team. * Support the preparation and maintenance of security documentation, including contributions to System Security Plans (SSPs), Security Assessment Reports (SARs), POA&Ms, and related RMF artifacts as needed. * Conduct hands-on security assessments, vulnerability scans, and system hardening to identify and remediate potential weaknesses. * Coordinate with the ISSE, developers, and network engineers to implement and maintain technical security controls and ensure ongoing compliance. * Support security authorization and accreditation (A&A) processes to help achieve and maintain Authority to Operate (ATO). * Participate in configuration management boards and change control processes as needed to support system administration activities. * Collaborate with ISSOs, ISSMs, and government security officials to meet program security objectives and milestones. * Stay current with evolving federal cybersecurity guidance, tools, and threat trends. ## Related Videos - [What makes Cybersecurity different for critical infrastructure?](https://www.wearedevelopers.com/videos/571-what-makes-cybersecurity-different-for-critical-infrastructure) - [Docker network without Docker](https://www.wearedevelopers.com/videos/1418-docker-network-without-docker) - [From DevOps to Scaled DevOps: How We’re Rebuilding Continuous Delivery as a Platform](https://www.wearedevelopers.com/videos/100018-from-devops-to-scaled-devops-how-we-re-rebuilding-continuous-delivery-as-a-platform) - [#90DaysOfDevOps - The DevOps Learning Journey](https://www.wearedevelopers.com/videos/548-90daysofdevops-the-devops-learning-journey) - [Docker exec without Docker](https://www.wearedevelopers.com/videos/1094-docker-exec-without-docker) - [DevOps Maturity Check – a way to balance autonomy and alignment](https://www.wearedevelopers.com/videos/58-devops-maturity-check-a-way-to-balance-autonomy-and-alignment) ## Related Articles - [Events like RSAC Get You CISOs. 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