Systems Administrator; Linux

Location

Kauai, HI.

Salary: $105,000.

• Top Secret (SSBI) required; T5 or equivalent.

• Administer and maintain Red Hat Linux (RHEL) and other Linux-based environments across networked systems.
• Implement and maintain RMF security controls and ensure compliance with DISA STIGs and DoD cyber security policies.
• Apply and manage patches and updates across all Linux systems in accordance with DoD and Navy patch management policies.
• Manage automated installation methods and system imaging (SCCM, VMware, Nutanix, Satellite, Ansible).
• Perform system hardening, patching, and vulnerability remediation using ACAS, ESS, and SCAP.
• Develop and maintain Power Shell scripts for automation of administrative tasks and system configuration.
• Support virtualization platforms (VMware, Hyper‑V) and manage virtual infrastructure lifecycle.
• Collaborate with cyber security teams to support ATO packages, POA&Ms, and audit readiness.
• Maintain system documentation, configuration baselines, and SOPs.
• 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 Veeam and Commvault.
• Evaluate and recommend new Linux technologies and DoD‑approved tools.
• Perform other duties as assigned, including general office duties and periodic at‑sea duty to support mobile sensor systems.

• Bachelor’s degree in Business, IT, or a related field.
• Eight years of directly related work experience can be substituted for a degree.
• Three years of System Administration/IT experience.
• Proficiency in operating personal computers, computer software, and standard office equipment.
• Basic keyboarding skills and aptitude for neatness and accuracy.
• Proven problem‑solving and critical‑thinking skills.

• Advance knowledge of both Windows Server and RHEL.
• Proficiency in automation tools and scripting (Power Shell, Bash, Python).
• VMware/Nutanix certification.
• Knowledge/administration of Trellix, Log Rhythm, and MDE.
• Experience with DoD systems and infrastructure.
• Knowledge of cyber security methods and techniques.

• DOD 8570.1M IAT Level II required prior to start.
• Linux+ or Red Hat Certified System Administrator (RHCSA) required prior to start.

• Health, dental, and vision insurance.
• Paid time off and holidays.
• Retirement benefits, including 401(k) matching.
• Educational reimbursement.
• Parental leave.
• Employee stock purchase plan.
• Tax‑saving options.
• Disability and life insurance.
• Pet insurance.

Amentum is an Equal Opportunity Employer. Our hiring practices provide equal opportunity for employment without regard to race, sex, sexual orientation, pregnancy, age, ancestry, U.S. military or veteran status, color, religion, creed, marital or domestic partner status, medical condition, genetic information, national origin, citizenship status, low‑income status, or mental or physical disability so long as the essential functions of the job can be performed with or without reasonable accommodation, or any other protected category under federal, state, or local law.

If you need a reasonable accommodation for any part of the employment process, please contact us by email at  or workday Requests for accommodation will be considered on a case‑by‑case basis.

EEO including Disability/Protected Veterans Labor Laws Posters.