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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Systems Administrator 3 - **Company:** RealmOne - **Location:** Columbia, MD, United States - **Salary:** $172,000.0 - $223,000.0 - **Contract:** Permanent contract - **Skills:** Systems Engineering, Computer Networks, Linux, IT Management, Linux System Administration, Systems Development Life Cycle, Red Hat Enterprise Linux, Service-Oriented Architecture, System Software, Systems Integration, Cloud Platform System, System Availability, Information Technology, Hardware Infrastructure - **Published:** September 24, 2026 - **Apply:** https://jobs.localjobnetwork.com/apply/add/88418640/1 ## About the Role * Fifteen (15) years of experience providing System Administration support * Bachelor's Degree in related technical discipline required. Certifications Required: * IAT II Position requires active Security Clearance with appropriate Polygraph ## Description RealmOne was built on the principle that people matter first and foremost. We believe in providing a strong work/life balance by investing in our employees and encouraging professional and personal growth. We do this by offering exceptional benefits, flexible schedules, and the tools necessary to achieve success through paid training, mentoring, and the opportunity to work alongside top-notch industry professionals. Join us on this journey as we execute this mission-critical contract providing engineering support for system development, fielded systems, and labs spanning for enabled and high speed capabilities, satellite access solutions, and mission operations. Your effort and expertise are crucial to the success and execution of this impactful mission. This opportunity supports an Enterprise IT contract with a team of Systems Administrators, Network Engineers, Systems Engineers and System Integration Technicians, responsible for the architecture, engineering, integration, operations, maintenance and sustainment of multi-level Enterprise IT environment., A Senior Linux Systems Administrator is responsible for managing, maintaining, and optimizing Linux-based systems and servers, ensuring their reliability, security, and high availability. They oversee system upgrades, troubleshoot performance issues, automate workflows, and collaborate with development and operations teams to support infrastructure needs. Additionally, they provide mentorship to junior staff, implement best practices, and ensure compliance with organizational policies and security standards. Will be responsible for providing Linux System Administration support for the program. Along with meeting the System Administrator III LCAT requirements, the ideal candidate for this position must have experience in Linux (Red Hat), STE/STN, and experience with Containers/Cloud environments., * Provide support for implementation, troubleshooting and maintenance of IT systems. * Manage the daily activities of configuration and operation of IT systems. * Provide assistance to users in accessing and using IT systems. * Provide support to IT systems including day-to-day operations, monitoring and problem resolution for all of the client/server/storage/network devices, mobile devices, etc. * Provide support for the escalation and communication of status to agency management and internal customers. * Optimize system operations and resource utilization, and perform system capacity analysis and planning. * Provide in-depth experience in trouble-shooting IT systems. * Provide detailed analysis and feedback to agency management and internal customers for escalated tickets. * Provide support for the dispatch system and hardware problems and remains involved in the resolution process. * Configure and manage Linux (or other applicable) operating systems and installs/loads operating system software, troubleshoot, maintain integrity of and configure network components, along with implementing operating systems enhancements to improve reliability and performance. * Support the design of systems, mission architecture and associated hardware. * Possess a working knowledge and understanding of system administration interdependencies as part of the Service Oriented Architecture (SOA). * Analyze and resolve complex problems associated with server hardware, applications, and software integration. ## Related Videos - [Flexibility is Key: Unlocking the Advantages of Versatile Software Solutions for Strategic Innovatio](https://www.wearedevelopers.com/videos/1943-flexibility-is-key-unlocking-the-advantages-of-versatile-software-solutions-for-strategic-innovatio) - [Your Manager Doesn’t Come with a User Manual (But You Can Totally Write One)](https://www.wearedevelopers.com/videos/1495-your-manager-doesn-t-come-with-a-user-manual-but-you-can-totally-write-one) - [Docker network without Docker](https://www.wearedevelopers.com/videos/1418-docker-network-without-docker) - [Hacking MSSQL on Cloud. 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