Systems Administrator

MetroStar

Systems Administrator managing the security and performance of AWS-hosted enterprise IT systems for the U.S. Air Force, focusing on cybersecurity compliance and operational excellence.

Posted 8/1/2026full-timeRemote • 🇺🇸 United StatesMid-LevelSenior💰 $90,000 - $100,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in administering Linux and Windows servers within AWS environments, ensuring compliance with DoD cybersecurity standards and DISA STIG requirements. Proficient in system administration tasks, vulnerability remediation, and collaboration with technical teams to maintain secure and resilient IT operations.

Highest-signal resume keywords

AWS System AdministrationLinux Operating System AdministrationDISA STIG ComplianceVulnerability RemediationDoD 8140 Qualification

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Linux System AdministrationWindows Server AdministrationPatch ManagementTroubleshootingBackup and Recovery ProceduresConfiguration ManagementPerformance OptimizationSecurity Control DocumentationIncident ResolutionTechnical Documentation

Soft Skills

Analytical SkillsProblem-Solving SkillsInterpersonal CommunicationWritten CommunicationVerbal Communication

Tools & Technologies

AWSDISA STIGsRisk Management Framework (RMF)SOPsKnowledge Articles

Certifications & Qualifications

Security + CEActive Secret Security Clearance

Industry Keywords

Department of War (DoW)U.S. Air Force ITCybersecurity StandardsCompliance EvidencePlans of Action and Milestones (POA&Ms)

Tech Stack

Tools & technologies

AWSCloudCyber SecurityLinux

About the role

Key responsibilities & impact

Monitor the health, performance, and availability of AWS-hosted Linux and Windows servers, responding to alerts and troubleshooting issues before they impact operations.
Perform routine system administration tasks, including patch management, software updates, vulnerability remediation, and system maintenance activities.
Harden servers and applications in accordance with DISA STIG requirements, ensuring compliance with DoD cybersecurity standards and maintaining secure system baselines.
Review vulnerability scan results, develop remediation plans and POA&Ms (Plans of Action and Milestones), and coordinate corrective actions with technical teams.
Support Risk Management Framework (RMF) activities by collecting compliance evidence, documenting security controls, and helping maintain authorization requirements.
Manage user accounts, permissions, and access controls, ensuring proper system access while adhering to established security protocols.
Maintain configuration management standards by validating server configurations, documenting changes, and ensuring systems remain compliant with approved baselines.
Troubleshoot hardware, software, and interoperability issues, working with engineers and cybersecurity personnel to quickly resolve incidents and minimize mission impact.
Execute backup, recovery, and disaster recovery procedures, helping ensure system resilience and continuity of operations.
Create and update technical documentation, SOPs, and knowledge articles to support operational consistency and knowledge sharing.
Collaborate regularly with Air Force stakeholders, cybersecurity teams, cloud engineers, and system administrators to support continuous monitoring, infrastructure modernization efforts, and mission success.

Requirements

What you’ll need

Bachelor's degree in Information Technology, Computer Science, Engineering, or a related technical field. *(High school diploma+ 7 yrs Linux system administration experience may be substituted for degree)
Minimum of 3 years of experience administering Linux enterprise IT systems.
Proven experience as a System Administrator operating within an AWS environment.
Hands-on experience supporting Department of War (DoW) or U.S. Air Force IT environments.
Experience administering Linux operating systems (AWS Linux, Ubuntu) as well as Microsoft Windows Server environments.
Must have extensive experience hardening servers and applications in accordance with DISA STIGs.
Strong analytical, troubleshooting, and problem-solving skills with the ability to manipulate operating system components and optimize performance.
Excellent written, verbal, and interpersonal communication skills.
Must meet DoD 8140 qualification requirements. (e.g., Security + CE)
Active Secret security clearance required.

Benefits

Comp & perks

Health, dental, and vision insurance
401(k) retirement plan with company match
Paid time off (PTO) and holidays
Parental Leave and dependent care
Flexible work arrangements
Professional development opportunities
Employee assistance and wellness programs