Linux Server Administrator

Linux Server Administrator Shape the future of defense with MANTECH! Join a team dedicated to safeguarding our nation through advanced tech and innovative solutions. Since 1968, we've been a trusted partner to the Department of Defense, delivering cutting-edge projects that make a real impact. Dive into exciting opportunities in Cybersecurity, IT, Data Analytics and more. Propel your career forward and be part of something extraordinary. Your journey starts now—protect and innovate with MANTECH! MANTECH seeks a motivated, career and customer-oriented LINUX SERVER ADMINISTRATOR to join our team in QUANTICO, VA. This position supports mission-critical Department of War (DoW) IT infrastructure. The contractor will assist with the installation, configuration, maintenance, and security of Linux-based server environments on classified and unclassified networks to ensure the availability and resilience of vital national security assets. Responsibilities include but are not limited to: Assist with the installation, configuration, and day-to-day maintenance of Linux operating systems (including Red Hat Enterprise Linux and Ubuntu) across physical and virtual (VMware) environments under senior engineering guidance. Support compliance efforts by applying DoD Security Technical Implementation Guides (STIGs), executing routine vulnerability patching (IAVAs/IAVBs), and maintaining alignment with Risk Management Framework (RMF) standards. Monitor server health and system performance; provide Tier I/II technical support to diagnose and resolve standard hardware, software, and network configuration issues. Utilize and modify basic automation scripts (using Bash, Python, or Ansible) to execute routine administrative tasks and system checks. Update and maintain standard operating procedures (SOPs), system logs, and administrative documentation to support compliance and team operational continuity. Minimum Qualifications: Bachelor's degree in Computer Science, Information Systems, or a related technical field with 2–3 years of IT/Linux experience, or 4–5 years of equivalent hands-on IT/Linux experience without a degree. 1–2 years of hands-on experience in Linux systems administration (entry-to-mid level), preferably in a federal or DoD environment. Active IAT Level II baseline certification (e.g., CompTIA Security+ CE, CCNA Security, or equivalent). Basic understanding of fundamental Linux tools and administrative services (NFS, DNS, SSH, user/group management). Working knowledge or training in Linux systems (holding or working toward a CompTIA Linux+ or RHCSA certification is a plus). Preferred Qualifications: Exposure to DoD security tools such as ACAS, HBSS/ESS, or Splunk. Exposure to basic scripting concepts (Bash, Python) or configuration tools (Ansible). Familiarity with virtualization basics (VMware vSphere). Clearance Requirements: Must have an active Top Secret / Sensitive Compartmented Information (TS/SCI) security clearance. Physical Requirements: The person in this position must be able to remain in a stationary position 50% of the time. Occasionally move about inside the office to access file cabinets, office machinery, or to communicate with co-workers, management, and customers via email, phone, or virtual communication tools. The projected compensation range for this position is $85,000.00-$141,600.00. There are differentiating factors that can impact a final salary/hourly rate, including, but not limited to, Contract Wage Determination, relevant work experience, skills and competencies that align to the specified role, geographic location (For Remote Opportunities), education and certifications as well as Federal Government Contract Labor categories. In addition, MANTECH invests in its employees beyond just compensation. MANTECH's benefits offerings include, dependent upon position, Health Insurance, Life Insurance, Paid Time Off, Holiday Pay, short-term and long-term Disability, Retirement and Savings, Learning and Development opportunities, wellness programs as well as other optional benefit elections. MANTECH considers all qualified applicants for employment without regard to disability or veteran status or any other status protected under any federal, state, or local law or regulation. If you need a reasonable accommodation to apply for a position with MANTECH, please email us and provide your name and contact information. ManTech