Systems Administrator Senior - Kwajalein Atoll - 3833
4/14/2026
The Systems Administrator will support the Reagan Test Site Operations Center by maintaining Windows-based servers in a secure, isolated environment. Responsibilities include managing hardware lifecycles, applying security patches, and ensuring high availability of IT infrastructure through proactive troubleshooting.
Working Hours
40 hours/week
Company Size
1,001-5,000 employees
Language
English
Visa Sponsorship
No
RGNext employees execute and report on theater and strategic offensive and defensive ballistic missile testing and support space situational awareness operations and experiments, using a wide array of highly sophisticated radar, telemetry and optical sensors to meet the needs of the Department of Defense in defending the United States and its interests. Our team delivers invaluable defensive support to our nation, efficiency and essential national space awareness expertise to ensure our nation’s safety.
This overseas position is located on Kwajalein Atoll in the Marshall Islands. It is an unaccompanied position (no family accommodations or pets). Benefits of this unique location include free housing, three meals a day and potential for overseas tax incentives.
What You Will Do:
- Support the Reagan Test Site (RTS) Operations Center as a Systems Administrator III.
- Work with a team supporting mission initiatives in a secure, isolated computing environment with a primary focus on Windows administration.
- Work with peers, internal customers, and management to create a highly available, resilient, and standardized IT infrastructure.
- Install, maintain, and support multiple Windows-based servers on physical and virtual platforms in support of RTS initiatives.
- Troubleshoot issues that arise as well as look for issues proactively.
- Maintain a secure computing environment, including adherence to a backup schedule, patching of all systems, and applying applicable STIG settings.
- Maintain a regular and predictable work schedule.
- Establish and maintain effective working relationships within the department, and within the wider RGNext business units.
- Maintain hardware lifecycle by deploying replacement systems in a timely fashion.
- Perform root cause analysis and resolution for hardware and software issues.
- Install and update software packages from repositories or local file systems.
- Manage local users and groups and with Active Directory integration.
- Secure physical and virtual machines to DISA STIG requirements.
- Provide mission support as needed.
- Perform other related duties as assigned.
Skills Needed:
- Strong documentation skills, organizational skills, and the ability to interact with team members cross-functionally.
- Strong verbal and written communication skills.
- Strong organization and project management skills.
- Ablility to deploy, configure, and maintain Windows systems within a DoD environment.
Qualifications You Must Have:
- Bachelor’s degree in Computer Science, Information Systems, or related field or experience in lieu of education.
- Five (5) or more years’ experience working in related field in Information Technology.
- Knowledge of and advanced troubleshooting skills with Windows Server 2022 and newer.
- Basic network troubleshooting skills.
- PowerShell experience and knowledge.
- Must have and maintain or be able to obtain prior to start date a Security+, CySA+, GICSP, or similar certification meeting DoD 8140.01 / DoD 8570.01 baseline certification for IAT Level II.
- Must have and maintain or be able to obtain within three months of start date a CE (Computer Environment), Linux+, Server+, or similar certification meeting DoD 8140.01/ DoD 8570.01 baseline certification for IAT Level II.
- Must apply extensive knowledge of a variety of Cyber Security field concepts, practices, and procedures to ensure the secure integration and operation of enclave systems.
- Must be able to obtain and maintain a DoD Secret security clearance which requires U.S. citizenship.
- Must be able to relocate to the United States Army Kwajalein Atoll, Marshall Islands.
- Ability to obtain and maintain a U.S. Passport.
- The flexibility to work occasional non-duty hours or on weekends to support specific project or mission requirements.
Benefits of Working at RGNext:
Employees enjoy a robust benefit package on day one, which includes medical, dental, vision, disability and life insurances, generous Paid Time Off and holiday pay, a retirement savings plan with a company match and vesting on day one!
Note: This job description describes the general nature of the duties and requirements of the job. It is not intended to be an exhaustive list or to limit the supervisor's ability to modify work assignments as appropriate.
RGNext is an Equal Opportunity/Affirmative Action employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, veteran status or any other applicable state or federal protected class. RGNext provides affirmative action in employment for qualified Individuals with a Disability and Protected Veterans in compliance with Section 503 of the Rehabilitation Act and the Vietnam Era Veterans’ Readjustment Assistance Act.
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