Linux Administrator - Secret Clearance Required

Linux Administrator We are seeking a Linux Administrator to support the Infrastructure Management Monitoring Team in Falls Church, Virginia. This role is critical to maintaining and supporting Linux operating systems. The ideal candidate is a proactive problem solver who thrives in a dynamic, mission‑driven environment and can engage confidently with senior military and government leadership. Responsibilities Provide system administration support for Linux operating systems including installing software, applying patches, managing file systems, monitoring performance, and troubleshooting alerts from monitoring tools. Analyze and resolve problems associated with the operating system, servers, hardware, and application software. Detect, diagnose, and report related problems on servers, including system failure analysis and recovery, ensuring consistency and integrity of file systems. Leverage in‑depth hardware configuration knowledge, shell programming expertise, and a solid understanding of standard concepts, practices, and procedures (plan and accomplish goals, perform tasks, and work under general supervision). Daily monitor interface programs between multiple enterprise systems; review daily logs and ensure successful completion. Perform incremental and full cold backups/patching. Ensure compliance with DoW Linux Security Technical Implementation Guides (STIGs). Provide performance metrics and usage charts (CPU usage, disk usage, and network uptime) for Linux servers. Conduct general maintenance, upgrades, and new installation of servers and coordinate with data center personnel to execute. Document and generate business processes for day‑to‑day and emergency support procedures. Install, test, and verify Linux security patches; coordinate, document requirements and timelines, and work closely with service owners. Perform systems security administration functions, including creation and maintenance of customer profiles and accounts. Create and maintain standard operating procedures for the Linux documentation library. Implement, configure, update, and maintain Ansible servers and scripts. Implement, configure, update, and maintain STIG Manager servers and scripts. Implement, configure, update, and maintain the Linux operating system firewall. Handle NFS, CIFS, and SMB permissions. Qualifications Education / Equivalent Training Required: High school diploma or AA. Preferred: Bachelor’s degree in information technology, computer science, or related technical discipline, or equivalent combination of education, technical certifications, or work experience. Required Experience: 8+ years of overall demonstrated experience with RHEL7 and/or RHEL8 servers. Technical Skills Experience administering RHEL7/8 Linux servers and applying Linux best practices. Strong Linux administration skills with knowledge of enterprise network architectures. Hands‑on experience with automation/configuration tools (Ansible, Puppet, Chef). Skilled in scripting for automation (Bash, Ruby, Python, Perl). Solid understanding of Linux internals (system calls, file systems, processes). Working knowledge of TCP/IP and related protocols ( FTP, NFS). Experience using PowerShell for task automation. Excellent problem‑solving, analytical, and decision‑making skills. Reliable and responsive, consistently meeting expectations and following direction. Strong customer service skills; able to engage senior military and government leaders. Ability to present ideas clearly in briefings, meetings, and leadership interactions. Capability to deliver training sessions as needed. Experience coordinating with stakeholders to meet deadlines and objectives. Excellent communication and documentation abilities. Strong organizational, collaborative, and team‑oriented mindset. Ability to quickly absorb information and self‑learn new requirements. Maintains current industry knowledge and professional certifications. Ability to work under time constraints and adapt to changing requirements. Experience leading or managing teams. Certification Requirements Must possess the appropriate baseline certification(s) to achieve DoW8570.01‑M Information Assurance Technical (IAT) LevelII (CompTIA Security+ce) and an additional Computing Environment (CE) certification (RHEL7 and/or RHEL8). When 8140 requirements are implemented on a program/contract, the employee must conform to 8140 certification standards. Security Clearance Must have a minimum of an active Secret clearance at the time of interview and maintain it throughout employment. Location & Travel Falls Church, Virginia. Travel up to 10% of the time, including conferences up to two times annually and site visits as needed. #J-18808-Ljbffr General Dynamics - IT