Senior Systems Administrator (Linux)

Alakaina Family of Companies-posted about 1 month ago
Full-time • Mid Level
Kekaha, HI
501-1,000 employees
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The Alaka`ina Foundation Family of Companies (FOCs) is looking for a Senior Linux Systems Administrator Range Network. The position will support our government customer located in Kekaha, Hawai'i. Oversee and manage enterprise-level Linux infrastructure in support of U.S. Navy operations within a Department of Defense (DoD) environment. This role requires deep technical expertise in Linux systems, leadership in secure system administration, and a strong working knowledge of Risk Management Framework (RMF) and NIST SP 800-53 controls. The ideal candidate will demonstrate the ability to lead teams, manage complex environments, and ensure cybersecurity compliance across classified and unclassified networks.

  • Administer and maintain Red Hat Linux (RHEL) and other Linux-based environments in classified and unclassified environments across Navy networks.
  • Implement and maintain RMF security controls and ensure systems are compliant with DISA STIGs and DoD cybersecurity policies.
  • Apply and manage patches and updates across all Linux systems in accordance with DoD and Navy patch management policies.
  • Perform system hardening, patching, and vulnerability remediation using tools such as ACAS, ESS, and SCAP.
  • Develop and maintain PowerShell scripts for automation of administrative tasks and system configuration.
  • Support virtualization platforms (VMware, Hyper-V) and managed virtual infrastructure lifecycle.
  • Collaborate with cybersecurity teams to support ATO packages, POA&Ms, and audit readiness.
  • Maintain system documentation, configuration baselines, and standard operating procedures (SOPs).
  • Provide mentorship to junior administrators and IT support staff.
  • Manage automated installation methods and system imaging (e.g., SCCM, VMware, Nutanix, Satellite, Ansible)
  • Participate in Change Control Boards (CCBs) and Configuration Management Boards (CMBs).
  • Assist with incident response, forensic analysis, and system recovery efforts.
  • Support backup and disaster recovery strategies using enterprise tools (e.g., Veeam, Commvault).
  • Evaluate and recommend new Linux technologies and DoD-approved tools to improve system performance and security.
  • Perform other duties as assigned.
  • Bachelor's Degree in IT, or relevant field and at least seven (7) years of System Administration/IT experience.
  • HS diploma/GED and twelve (12) years experience in System Administration/IT experience can be substituted for a Bachelor's degree.
  • Advanced certifications may be substituted for a degree or experience.
  • DOD 8570/8140 IAT II
  • One of the following OS Certifications required: Linux, Linux+ or Red Hat Certified System Administrator (RHCSA) Certification required prior to start.
  • Knowledge of IT systems and advance IT infrastructure concepts
  • Must be proficient in operating personal computers, computer software and standard office equipment.
  • Must have basic keyboarding skills and aptitude for neatness and accuracy in sorting.
  • Critical thinking - Proven problem solver
  • Must be a U.S. Citizen
  • Top Secret security clearance is required with T5 or equivalent (SSBI) investigation level. (Applicants selected either must currently possess a Secret clearance or will be subject to a government security investigation and must meet eligibility requirements to obtain clearance prior to commencement of employment and maintain a security clearance for access to classified information or Closed/Restricted Areas throughout duration of employment.)
  • Advanced knowledge and certification in both Windows Server and RHEL is considered highly desired.
  • Proficiency in automation tools and scripting (e.g, PowerShell, Bash, Python).
  • VMware/Nutanix certification.
  • Knowledge/Administration of Trellix, LogRhythm, and MDE.
  • Experience with DoD systems and infrastructure.
  • Knowledge in Cyber Security Methods and Techniques.
  • Knowledge of DoD IT systems, to include Windows, RHEL, and comprehensive infrastructure concepts.
  • Employees enjoy competitive salaries; a 401K plan with company match; medical, dental, disability, and life insurance coverage; tuition reimbursement; paid time off; and 11 paid holidays.
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