Senior Linux Systems Admin — RMF/DoD Cyber Lead

Amentum; Waimea/Kamuela (HI); Presencial; USD 135.000 - 150.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

Health, dental, and vision insurance

Paid time off and holidays

Retirement benefits (401(k) matching)

Educational reimbursement

Parental leave

Employee stock purchase plan

Tax-saving options

Disability and life insurance

Pet insurance

Descripción de la vacante

Amentum is seeking a Sr. Systems Administrator (Linux) to oversee enterprise Linux infrastructure in support of U.S. Navy operations.

The role requires RMF/NIST controls expertise and leadership to ensure cybersecurity compliance across classified and unclassified networks. Responsibilities include patching, automation, and system hardening in RHEL environments, plus collaboration with cybersecurity for ATO/POA&M and incident response.

Formación

• Two years of System Administration/IT experience.
• Advance certifications may be substituted for a degree or experience.
• Automation and scripting proficiency: PowerShell, Bash, Python.
• VMware/Nutanix certification.
• Knowledge/Administration of Trellix, LogRhythm, and MDE.
• Experience with DoW systems and infrastructure.
• Knowledge of Cyber Security Methods and Techniques.
• Knowledge of DoW IT systems, including Windows, RHEL, and infrastructure concepts.

Responsabilidades

• Administer and maintain Red Hat Linux (RHEL) and other Linux environments across Navy networks.
• Implement and maintain RMF security controls and DISA STIGs compliance.
• Apply and manage patches across Linux systems per DoW/Navy policies.
• Manage automated installation methods and system imaging (e.g., SCCM, VMware, Nutanix, Satellite, Ansible).
• Perform system hardening, patching, and vulnerability remediation with ACAS, ESS, SCAP.
• Develop PowerShell scripts for automation of admin tasks and config.
• Support virtualization platforms (VMware, Hyper-V) and manage virtual infrastructure lifecycle.
• Collaborate with cybersecurity teams for ATO/POA&M and audit readiness.
• Maintain system docs, baselines, and SOPs; mentor junior staff.

Conocimientos

PowerShell

Bash

Python

RMF knowledge

Educación

Bachelor's Degree

High School or equivalent with eight years experience

Herramientas

VMware

Nutanix

Satellite

Ansible

SCAP

RHCSA certification

Descripción del empleo

Amentum is seeking a Sr. Systems Administrator (Linux) to oversee enterprise Linux infrastructure in support of U.S. Navy operations.

The role requires RMF/NIST controls expertise and leadership to ensure cybersecurity compliance across classified and unclassified networks. Responsibilities include patching, automation, and system hardening in RHEL environments, plus collaboration with cybersecurity for ATO/POA&M and incident response.