> Markdown version of [/jobs/ext/1450404-system-administrator-gains](https://www.wearedevelopers.com/jobs/ext/1450404-system-administrator-gains). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # System Administrator - GAINS - **Company:** TECHXIMIUS CORPORATION - **Location:** Aberdeen, MD, United States - **Experience:** Experienced - **Salary:** $90,000.0 - $98,000.0 - **Contract:** Permanent contract - **Skills:** CentOS, Linux, Domain Name System (DNS), Ghost (Backup Software), Monitoring of Systems, Storage Area Network (SAN), Network Troubleshooting, Linux System Administration, System Center Configuration Manager, Public Key Infrastructure, Red Hat Enterprise Linux, Server Administration, Transmission Control Protocol (TCP), Virtual Machines, Virtualization Technology, C4ISR, Computer Network Operations, Kubernetes, Infrastructure Automation Frameworks, Information Technology, Patch Management, Network Server, Vulnerability Analysis, Vmware - **Published:** July 26, 2026 - **Apply:** https://www.indeed.com/viewjob?jk=d7f7699ffabffb70 ## About the Role * Demonstrated Linux System Administrator expertise * Demonstrated Kubernetes experience * Strong understanding of: * TCP/IP networking * System security and authorization frameworks * Server configuration, monitoring, and maintenance * Experience with configuration management tools * Experience with PKI in a DoW environment * Ability to clearly communicate technical concepts to both technical and non-technical stakeholders * Experience with the migration of imaging and patch management from Symantec Ghost to MECM. * Building and maintaining images for PXE installation * Designing and deploying servers as virtual machines in VMware vCenter * Experience supporting enterprise or tactical network environments Preferred Qualifications * DoD 8570 / Army IA Technical Level II certification, such as: * Security+ * CASP Clearance: * Current DoW Secret level security clearance or higher. Education & Experience: * Bachelor's degree in Computer Science, Engineering, Mathematics, or related technical field (OR) * 4+ additional years of relevant experience in lieu of degree * 3-7 years of hands-on system administration experience in Linux environments, * Prolonged periods of sitting at a desk and working on a computer. * Must be able to lift up to 25 pounds at times. * This position requires the ability to communicate information and ideas so others will understand. * Must be able to exchange accurate information in work situations. * Must be able to travel by public transportation. ## Description Tech(x) is seeking a skilled Linux System Administrator to support mission-critical systems within a technical lab environment. This role is responsible for administering, securing, and optimizing enterprise Linux systems supporting Army and DoW network operations. As part of a collaborative and forward-leaning team, you will contribute to system hardening, vulnerability assessment activities, and enterprise service support across a complex, multi-domain environment. Responsibilities * Provide system administration support for C4ISR DREN Linux environments * Manage and maintain C5ISR Linux-based DNS services and enterprise Linux baselines (e.g., CentOS) * Develop, implement, and maintain secure system configurations and patch management processes * Support network vulnerability assessments in coordination with cybersecurity teams * Provide system administration, security, and enterprise deployments * Administer and support enterprise infrastructure services, including: * Storage Area Networks (SAN) * Virtualization platforms * Windows-based systems (as needed) * Monitor system performance, ensure availability, and troubleshoot system issues * Develop and maintain backup and recovery procedures * Ensure compliance with DoD cybersecurity and authorization requirements * Collaborate with cross-functional engineering and operations teams * Other duties as assigned ## Related Videos - [What makes Cybersecurity different for critical infrastructure?](https://www.wearedevelopers.com/videos/571-what-makes-cybersecurity-different-for-critical-infrastructure) - [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) - [Generating code with Angular schematics](https://www.wearedevelopers.com/videos/129-generating-code-with-angular-schematics) - [Docker exec without Docker](https://www.wearedevelopers.com/videos/1094-docker-exec-without-docker) - [Hacking MSSQL on Cloud. 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