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Flexible Linux Windows System Administrator Jobs

Reflexive Concepts

Senior System Administrator

Laurel, MD · On-site

$85K - $115K/yr

Maintain and administer Windows Server (various versions) and Linux server environments in a hybrid infrastructure. * Provide troubleshooting, maintenance, and operational support for IT systems, ...

SAIC

Windows System Administrator

Pensacola, FL · On-site

The Windows System Administrator will provide: * Desktop support of Windows 11 workstations in a Microsoft Active Directory environment. * Microsoft Windows Server 2019, 2022, and 2025 support of ...

ManTech

Windows System Administrator

Hanover, MD · On-site

$128K - $214K/yr

MANTECH seeks a motivated, career and customer-oriented Windows System Administrator to join our team in Hanover, MD. You will be part of a dedicated team delivering enterprise infrastructure ...

Peraton

Linux Systems Administrator

College Park, MD · On-site

$104K - $166K/yr

Responsibilities Peraton Labs is seeking a poly cleared Linux Systems Administrator to support the ... Experience with Windows system administration in mixed operating system environments * Experience ...

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Flexible Linux Windows System Administrator information

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How much do flexible linux windows system administrator jobs pay per year?

As of Jun 9, 2026, the average yearly pay for flexible linux windows system administrator in the United States is $95,957.00, according to ZipRecruiter salary data. Most workers in this role earn between $79,000.00 and $110,500.00 per year, depending on experience, location, and employer.

What is the difference between Flexible Linux Windows System Administrator vs Network Administrator?

AspectFlexible Linux Windows System AdministratorNetwork Administrator
CertificationsLinux+, Windows Server, CompTIA A+CCNA, Network+
Work EnvironmentServer management, system troubleshooting, cloud platformsNetwork infrastructure, routers, switches, security
Industry UsageIT companies, data centers, cloud providersTelecom, enterprise networks, ISPs

The Flexible Linux Windows System Administrator focuses on managing and maintaining server and system environments across Linux and Windows platforms, often working with cloud services. In contrast, a Network Administrator primarily manages network infrastructure, ensuring connectivity and security. Both roles require certifications like CompTIA or vendor-specific credentials and are vital in IT and networking industries. While their responsibilities differ, they often collaborate to ensure seamless IT operations.

What cities are hiring for Flexible Linux Windows System Administrator jobs? Cities with the most Flexible Linux Windows System Administrator job openings:
What are the most commonly searched types of Linux Windows System Administrator jobs? The most popular types of Linux Windows System Administrator jobs are:
What states have the most Flexible Linux Windows System Administrator jobs? States with the most job openings for Flexible Linux Windows System Administrator jobs include:
Flexible Linux Windows System Administrator jobs near you
Senior System Administrator

Senior System Administrator

Reflexive Concepts

Laurel, MD • On-site

$85K - $115K/yr

Full-time

Posted 8 days ago

Job description

Reflexive Concepts is seeking a skilled Senior System Administrator!
  • Join an existing team providing Life Cycle Sustainment (LCS) activities for commercial and custom-developed education, learning, and training applications. This is a self-motivated role on a fast-paced team, requiring a willingness to take on challenges in a collaborative environment.
Primary Responsibilities:
  • Perform IAVA patching and reporting across enterprise systems.
  • Maintain and administer Windows Server (various versions) and Linux server environments in a hybrid infrastructure.
  • Provide troubleshooting, maintenance, and operational support for IT systems, including both on-premise and cloud-hosted environments.
  • Execute patching, software maintenance, and upgrades for Linux and Windows systems.
  • Implement and manage Windows Group Policy Objects (GPOs) and perform PowerShell scripting for automation and administrative tasks.
  • Utilize AWS services, including EC2, Lambda functions, CloudFormation, and cloud-native scripting to automate deployments and manage cloud infrastructure.
  • Support infrastructure-as-code initiatives using Ansible and Terraform for automation, configuration management, and provisioning.
  • Develop and maintain system scripts and automation tools to streamline operations and improve system reliability.
Required Qualifications:
  • Fifteen (15) years of experience as an SA in programs and contracts of similar scope, type, and complexity.
  • A bachelor's degree in a technical discipline from an accredited college or university. Five (5) years of additional SA experience may be substituted in lieu of a bachelor's degree.
  • DoD 8570 compliance with Information Assurance Technical (IAT) Level I, as specified in the individual TTOs.
  • Proficiency maintaining various versions of Windows Server, including hardening, patching, upgrading, and disk management.
  • Linux server experience, including patching and software maintenance.
  • Experience with IAVA patching and reporting.
  • Experience maintaining and upgrading various types of installed software.
  • Skilled in problem solving and troubleshooting of computer systems and software.
Desired Qualifications:
  • Strong background as a hybrid Linux/Windows System Administrator.
  • Hands-on experience with AWS cloud services (Lambda, CloudFormation, EC2, IAM, etc.).
  • Proficiency with scripting and automation tools: Ansible, Terraform, PowerShell, Bash, and Python (preferred).
  • Experience administering Windows environments, including Active Directory and Group Policy Management.
  • Solid understanding of cloud security practices, patch management, and compliance reporting.
  • Strong troubleshooting and problem-solving skills in both Linux and Windows environments.
  • Ability to work independently and collaboratively in a fast-paced, mission-focused team environment.

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