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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Systems Administrator - **Company:** Metrea Management LLC - **Location:** Annapolis Junction, MD, United States - **Experience:** Experienced - **Contract:** Permanent contract - **Skills:** Active Directory, CompTIA Security+, Dynamic Host Configuration Protocol, Desktop Computing, Linux, Disaster Recovery, Domain Name System (DNS), Identity and Access Management, Data Intelligence, Lightweight Directory Access Protocols (LDAP), Security Content Automation Protocol, Trusted Systems, Software Vulnerability Management, Network Storage, Information Technology, Bare Metal, Laptops, Vulnerability Analysis, Vmware - **Published:** July 1, 2026 - **Apply:** https://www.indeed.com/viewjob?jk=325f158bc561f499 ## About the Role Do you have experience in Vulnerability management?, Do you have a Bachelor's degree?, * 3+ years of experience as System Administrator (SA) providing comprehensive system support * Hands-on experience applying DISA STIGs, conducting vulnerability assessments, and remediating compliance findings on classified networks * Strong background troubleshooting core infrastructure services (Active Directory, DNS, DHCP, group policies, and network storage solutions) in an isolated, non-internet connected environment * Experience in configuring new hardware systems and employing them into active environments for operational readiness * Must hold an active Top-Secret security clearance with SCI eligibility * Bachelor's degree preferred., * Active DoD 8570/8140 IAT Level II or III baseline certification (CompTIA Security+, CISSP) * Completion of COMSEC Custodian course is preferred, or obtain within 6 months of hire * Ability to support after-hours alarm/intrusion response, * Applicants must be legally authorized to work in the United States. * Must be a U.S. Citizen * Active TS/SCI clearance required at time of hire, and the ability to maintain it throughout employment. * Employment is contingent on meeting all clearance requirements., This is a full-time exempt position with typical working hours of Monday through Friday, 8:00 a.m. to 5:00 p.m. Hours and work shifts may change in accordance with department and business needs. Exempt Employees must have the ability to be on-call and available, as business needs require. ## Description We are seeking an experienced Classified Systems Administrator to support, maintain, and secure our mission-critical, high-consequence classified IT infrastructure. In this role, you will be the core technical lead overseeing a mixed Linux and Microsoft Windows environment, with a heavy focus on air-gapped, secure systems built for the Intelligence Community (IC) and Department of Defense (DoD). The ideal candidate has a strong "ownership mentality," is highly proactive, and possesses a deep, proven background in multitier support, bare-metal hardware configuration, and the strict security hardening protocols required to achieve and maintain an Authority to Operate (ATO)., * Provide comprehensive 1st, 2nd, and 3rd tier IT support across complex classified environments and secure air-gapped networks * Execute rigid security configuration and system hardening utilizing DISA STIGs, SCAP tools, and other federal cybersecurity best practices to ensure strict compliance with government directives * Configure, optimize, and maintain critical enterprise services including Active Directory (AD), Group Policy, Identity Management/LDAP, DNS, DHCP, repository servers, and patch deployment systems * Administer virtualized environments using Hyer-V and VMware. Develop and execute systematic backup scripts and disaster recovery procedures to safeguard critical intelligence data * Take hands-on ownership of physical rack components, low-voltage cabling, server hard-ware configurations, desktops, laptops, and secure mobile/tablet devices, including com-plete system startups and shutdowns * Author rigorous, instructional documentation for system baselines and standard operating procedures (SOPs) * Serve as the primary COMSEC custodian, maintaining 100% accurate accountability, strict inventory control, and secure storage for all physical and electronic cryptographic materials, key tapes, and controlled cryptographic items (CCIs) * Conduct required semi-annual, annual, and special-occasion inventories; strictly adhere to and enforce National Security Agency (NSA) directives, CNSSI manuals, and customer-driver COMSEC required security procedures * Ability to support after-hours alarm/intrusion response ## Related Videos - [What makes Cybersecurity different for critical infrastructure?](https://www.wearedevelopers.com/videos/571-what-makes-cybersecurity-different-for-critical-infrastructure) - [Agentic employees in world's most downloaded FinTech app](https://www.wearedevelopers.com/videos/100123-agentic-employees-in-world-s-most-downloaded-fintech-app) - [WebAssembly: The Next Frontier of Cloud Computing](https://www.wearedevelopers.com/videos/972-webassembly-the-next-frontier-of-cloud-computing) - [Docker network without Docker](https://www.wearedevelopers.com/videos/1418-docker-network-without-docker) - [The Developer Workstation Blind Spot: Why Your Security Stack Can't See What Matters Most](https://www.wearedevelopers.com/videos/100254-the-developer-workstation-blind-spot-why-your-security-stack-can-t-see-what-matters-most) - [Security Pitfalls for Software Engineers](https://www.wearedevelopers.com/videos/726-security-pitfalls-for-software-engineers) ## Related Articles - [Walking Into The Era of Supply Chain Risks](https://www.wearedevelopers.com/magazine/106-walking-into-the-era-of-supply-chain-risks) - [Understanding and Mitigating Common Web Vulnerabilities](https://www.wearedevelopers.com/magazine/565-understanding-and-mitigating-common-web-vulnerabilities) - [Best Paying Jobs in Technology](https://www.wearedevelopers.com/magazine/256-best-paying-jobs-in-technology) - [From developer to manager – what does it take to become an engineering manager?](https://www.wearedevelopers.com/magazine/42-from-developer-to-manager-what-does-it-take-to-become-an-engineering-manager) - [Dev Digest 191: Malware interviews, EU ❤️ Open Source and Skilled Agents](https://www.wearedevelopers.com/magazine/645-dev-digest-191-malware-interviews-eu-open-source-and-skilled-agents) - [9 Ways to Make Money Hacking](https://www.wearedevelopers.com/magazine/333-9-ways-to-make-money-hacking)