Linux Administrator

Linux AdministratorHII's Mission Technologies division is seeking a Linux Administrator to join our Technology team supporting the Distributed Training Operations Center (DTOC). In this role, you will administer and maintain Linux-based systems that support Distributed Mission Operations (DMO), cybersecurity compliance, mission networks, and other functions critical to Air National Guard training and readiness.Impact As a Linux Administrator, you will help ensure secure, reliable, and efficient system operations for mission-critical environments. Your work directly supports national defense by maintaining system integrity, safeguarding sensitive information, and enabling seamless execution of live and distributed training events.Key Job Responsibilities:Maintain and administer Linux-based mission systems and multi-user environments, coordinating with network administrators as needed.Support installation, configuration, and routine operation of Linux servers, workstations, and peripherals.Execute backup, recovery, and basic storage management tasks to support continuity of operations.Configure and harden Linux systems in accordance with STIGs, JSIG, and DoD cybersecurity requirements.Respond to system outages, performance issues, and troubleshooting requests in a timely manner.Participate in team efforts to integrate and support DTOC and OTTI technologies.Provide support for Linux-based applications and modeling & simulation (M&S) tools.Support cybersecurity monitoring tools such as HBSS and SIEM solutions.Implement OS-level patches, security updates, and software releases for Linux systems (and Windows when required).Document system configurations, procedures, and long-term operational needs.What you must have:Education & Experience: 2 years of relevant experience with a Bachelor's degree; OR 0 years of experience with a Master's degree; OR 6 years of relevant experience with a High School Diploma/equivalent.Technical Knowledge: Experience with Linux system administration in a DoD or security-focused environment. Ability to apply STIGs and implement cybersecurity controls across Linux systems. Familiarity with basic virtualization technologies (e.g., VMware), virtual machines, and LAN environments. Ability to update and patch Linux and Windows systems, including offline environments. Ability to perform basic network analysis and troubleshooting using tools such as Wireshark. Working knowledge of Bash or PowerShell scripting for automation and system tasks.Credentials: Active DoD Secret Clearance with ability to upgrade to TS. U.S. Citizenship. IAT Level II certification (e.g., Security+). Ability to obtain a CompTIA Linux+, RHCSA or LPIC-1 certification before start.Preferred Qualifications:CompTIA Linux+, RHCSA, LPIC?1 or related certificationVirtualization certifications such as VMware Certified Professional (VCP)Experience supporting DoD or Air National Guard mission systemsFamiliarity with Zero Trust Architecture and modern cybersecurity frameworksExperience with automation/configuration management tools (Ansible, Puppet, or Chef)Experience with enterprise storage solutions and/or backup management for Linux environmentsExperience analyzing DIS/HLA traffic or M&S environmentsDISA ACAS Training/CertificationActive Top Secret ClearancePhysical Requirements:May require working in an office, industrial, shipboard, or laboratory environment.Capable of climbing ladders and tolerating confined spaces and extreme temperature variances.The listed salary range for this role is intended as a good faith estimate based on the role's location, expectations, and responsibilities. When extending an offer, HII's Mission Technologies division takes a variety of factors into consideration which include, but are not limited to, the role's function and a candidate's education or training, work experience, and key skills.Meet HII's Mission Technologies Division:Our team of more than 7,000 professionals worldwide delivers all-domain expertise and advanced technologies in service of mission partners across the globe. Mission Technologies is leading the next evolution of national defense – the data evolution - by accelerating a breadth of national security solutions for government and commercial customers. Our capabilities range from C5ISR, AI and Big Data, cyber operations and synthetic training environments to fleet sustainment, environmental remediation and the largest family of unmanned underwater vehicles in every class.Find the role that's right for you. Apply today. We look forward to meeting you.