Senior Windows Systems Administrator - DoD RMF Expert Kauai

Amentum; Kekaha (HI); On-site; USD 135,000 - 150,000; Full time

Benefits offered by this job

Health, dental, and vision insurance

401(k) matching

Educational reimbursement

Paid time off

Job summary

Amentum seeks a Senior Systems Administrator (Windows) on Kauai, HI to oversee enterprise Microsoft infrastructure supporting U.S. Navy operations in a DoD environment.

The role requires RMF and NIST SP 800-53 knowledge, strong leadership, and hands-on expertise with AD, DNS, GPOs, patching, MECM, and virtualization.

Top Secret clearance is required to obtain and maintain access.

Qualifications

• Two (2) years of System Administration/IT experience.
• Advance certifications may be substituted for a degree or experience.
• Proficiency in automation tools and scripting (e.g., 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, to include Windows, RHEL, and comprehensive infrastructure concepts.

Responsibilities

• Administer and maintain Microsoft Windows Server environments in classified and unclassified environments across Navy networks.
• Manage Active Directory, DNS, DHCP, and GPOs across multiple domains and enclaves.
• Implement and maintain RMF security controls and ensure compliance with DISA STIGs and DoW policies.
• Apply and manage patches and updates per DoW and Navy requirements.
• Manage system imaging and virtualization (MECM, VMware, Nutanix).
• Develop PowerShell scripts to automate admin tasks and configurations.
• Support virtualization platforms (VMware, Hyper-V) and lifecycle management.
• Collaborate with cybersecurity teams for ATO packages, POA&Ms, and audit readiness.
• Maintain documentation, baselines, and SOPs.

Skills

PowerShell scripting

Active Directory

GPOs

VMware

Hyper-V

RMF

NIST SP 800-53

Automation scripting

DoW cybersecurity

Education

Bachelor's Degree in Computer Science or related field

Tools

MECM

Nutanix

ACAS

ESS

SCAP

Job description

Amentum seeks a Senior Systems Administrator (Windows) on Kauai, HI to oversee enterprise Microsoft infrastructure supporting U.S. Navy operations in a DoD environment.

The role requires RMF and NIST SP 800-53 knowledge, strong leadership, and hands-on expertise with AD, DNS, GPOs, patching, MECM, and virtualization.

Top Secret clearance is required to obtain and maintain access.