Systems Administrator 2 (Windows) PART-TIME

Amentum; Kekaha (HI); On-site; USD 60,000 - 86,000; Part time

Job summary

Amentum is seeking a part-time Systems Administrator 2 (Windows) on Kauai, HI to provide intermediate-to-advanced Microsoft infrastructure support for Navy operations within a DoW environment. You will manage Windows Server, AD, DNS, DHCP, and GPOs, ensure STIG compliance, and perform patching and automation tasks.

The role involves supporting both classified and unclassified networks, assisting cybersecurity teams, and participating in CCBs, with site visits and occasional on-sea duties as

Qualifications

• Two years of specialized Windows system administration experience.
• Knowledge of IT systems and advanced IT infrastructure concepts.
• Proficient in operating personal computers, software, and office equipment.
• Strong keyboarding skills and attention to detail.
• Critical thinking and problem-solving ability.
• Proficiency in automation tools and scripting (PowerShell, Bash, Python).
• Knowledge/Administration of Trellix, LogRhythm, and MDE.
• Experience with MECM/SCCM and with DoW systems.

Responsibilities

• Administer, maintain, and troubleshoot Windows Server environments across classified and unclassified Navy networks.
• Configure AD, DNS, DHCP, and GPOs.
• Ensure compliance with STIGs and DoW cybersecurity policies, performing remediation.
• Execute patch management and deploy updates via MECM.
• Perform system hardening and remediation using ACAS/ESS/SCAP.
• Leverage PowerShell to automate tasks.
• Support virtualization platforms (VMware/Hyper‑V).
• Assist in creating and maintaining ATO/POAM documentation.
• Serve as escalation point for junior staff; participate in CCBs.
• Support backup, disaster recovery, and incident response activities.

Skills

PowerShell scripting

Windows Server administration

Active Directory

DNS management

DHCP management

Group Policy

RMF/NIST controls

MECM/SCCM

VMware/Hyper‑V

Patch management

Cybersecurity standards

Education

Associate's Degree in IT or related field

Tools

MECM/SCCM

ACAS

ESS

SCAP

Trellix

LogRhythm

MDE

Job description

Amentum is seeking a Systems Administrator 2 (Windows) PART- TIME for a position on Kauai, HI. Provide intermediate-to-advanced level Microsoft infrastructure support for U.S. Navy operations within a Department of War (DoW) environment. This role involves comprehensive system administration, applying Risk Management Framework (RMF) and National Institute of Standards and Technology (NIST) controls, and serving as an escalation point for complex technical issues on both classified and unclassified networks.

• Administer, maintain, and troubleshoot Microsoft Windows Server environments across classified and unclassified Navy networks.
• Manage and configure Active Directory, Domain Name System (DNS), Dynamic Host Configuration Protocol (DHCP), and Group Policy Objects (GPOs).
• Ensure system compliance with Defense Information Systems Agency (DISA) Security Technical Implementation Guide (STIG)s and DoW cybersecurity policies, executing remediation tasks as needed.
• Execute patch management processes and deploy updates across Microsoft systems utilizing automated tools (e.g., Microsoft Endpoint Configuration Manager MECM).
• Perform system hardening and vulnerability remediation leveraging tools such as Assured Compliance Assessment Solution (ACAS), Endpoint Security Solution (ESS), and Security Content Automation Protocol (SCAP).
• Utilize and modify PowerShell scripts to automate routine administrative tasks.
• Manage and support virtualization platforms, primarily VMware and Hyper‑V.
• Assist cybersecurity teams in generating and maintaining documentation for Authority to Operate (ATO) packages and Plan of Action and Milestones. (POAM).
• Serve as an escalation point for junior IT staff, providing technical guidance and troubleshooting support.
• Participate in Change Control Boards (CCBs) to review and implement system changes.
• Support backup, disaster recovery, and incident response efforts.
• General office environment with site visits as well as periodic "at sea" duty to support the PMRF's Mobile at Sea Sensor system (MATSS).

Candidate must be capable of working in a team environment and participate in technical and system administrative activities throughout project life cycles.

Physical Elements/ Environment Lifting, Pushing/Pulling: over 50lbs Work positions requirements: walking, standing, crawling, kneeling, cramped, sitting and work requiring repeated stooping or frequent climbing. Environment: customer contact, extended workday, confined work area, office laboratory, field assignment, and inclement weather.

Minimum Qualifications

• Experience Two (2) years of specialized Window system administration required.
• 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.
• Proficiency in automation tools and scripting (e.g., PowerShell, Bash, Python).
• Knowledge/Administration of Trellix, LogRhythm, and MDE.
• Experience with MECM/SCCM.
• Experience with DoW systems and infrastructure.
• Knowledge in Cyber Security Methods and Techniques.

Education Associate's Degree High School Diploma with four (4) years of directly related Window system administration experience may be substituted for an A.S. degree.

Certifications (subject to change based on industry, DoW, or local policy requirements) VMware/Nutanix certification DOD 8570.1M IAT Level II required prior to start One of the following OS Certifications required prior to start: Azure Administrator Associate (Exam AZ-104) Windows Server Hybrid Administrator Associate (Exam AZ-800 and AZ-801)

Preferred Qualifications Advance knowledge and certification in both Windows Server and RHEL is considered highly desired.

Security Clearance Must be able to obtain and maintain a Top Secret US Government Clearance. Note: US Citizenship is required to obtain and maintain a Top Secret Clearance. Applicants selected either must currently possess a Top Secret clearance or will be subject to a US 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.

Compensation Details: $52.88

The compensation range or hourly rate listed for this position is provided as a good‑faith estimate of what the company intends to offer for this role at the time this posting was issued. Actual compensation may vary based on factors such as job responsibilities, education, experience, skills, internal equity, market data, applicable collective bargaining agreements, and relevant laws.

Benefits Overview:

• 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

Positions governed by a Collective Bargaining Agreement (CBA), the McNamara‑O'Hara Service Contract Act (SCA), or other employment contracts may include different provisions/benefits.

Original Posting: 11/10/2026 - Until Filled Amentum anticipates this job requisition will remain open for at least three days, with a closing date no earlier than three days after the original posting. This timeline may change based on business needs.

Amentum is proud to be an Equal Opportunity Employer. Our hiring practices provide equal opportunity for employment without regard to race, sex, sexual orientation, pregnancy (including pregnancy, childbirth, breastfeeding, or medical conditions related to pregnancy, childbirth, or breastfeeding), age, ancestry, United States 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. Learn more about your rights under Federal laws and supplemental language at Labor Laws Posters.

Welcome back! We encourage you to check on the status of your current job applications with us. You can also search for a list of our current job openings and see if there are any new positions that might be a good fit for you. Thank you for continued interest in employment with Amentum. For more than 100 years, Amentum has tackled the world’s toughest challenges to deliver agile and steadfast solutions to the U.S. government and its allies. With more than 50,000 employees on all seven continents and in more than 60 countries, Amentum delivers a broad range of operational support services to meet the critical needs of our clients. Our headquarters are in Chantilly, VA. Find us online at https://www.amentum.com/ If you need a reasonable accommodation for any part of the employment process, please complete our Accommodation Request. Requests for accommodation will be considered on a case‑by‑case basis. If you need assistance, please reach out to [e-mail] EEO including Disability/Protected Veterans Labor Laws Posters