ZipRecruiter

Log In

1

Senior Linux Windows System Administrator Jobs (NOW HIRING)

ManTech

Senior Linux System Administrator

Laurel, MD · On-site

$128K - $214K/yr

As a Senior System Administrator, you will work alongside customers, Integrated Product Teams (IPTs ... Configure and manage Linux, and possibly Windows operating systems, installs/loads operating system ...

Piper Companies

Windows System Administrator

Linthicum, MD · On-site

$70K - $130K/yr

As a Windows Systems Administrator, you will play a crucial role in the design, development, implementation, and maintenance of real-time and high-performance Windows systems. You will be responsible ...

i3

Senior Linux System Administrator

Huntsville, AL · On-site

Overview i3 is looking for an experienced Senior Linux System Administrator to join our team. In ... Deep experience working in a mixed OS environment (Red Hat Enterprise Linux and Windows Server)

SAIC

Windows System Administrator

Pensacola, FL

The Windows System Administrator will provide: * Desktop support of Windows 11 workstations in a ... Interact with the engineering management team and senior customer personnel on matters requiring ...

next page

Showing results 1-20

People also search for

All JobsLinux Windows System Administrator JobsSenior Linux Windows System Administrator Jobs

Senior Linux Windows System Administrator information

See salary details

$49K

$102.2K

$143.5K

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

As of Jun 5, 2026, the average yearly pay for senior linux windows system administrator in the United States is $102,229.00, according to ZipRecruiter salary data. Most workers in this role earn between $86,000.00 and $116,500.00 per year, depending on experience, location, and employer.

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

AspectSenior Linux Windows System AdministratorNetwork Engineer
CertificationsLinux+, Windows Server, Cisco CCNACCNA, CCNP, CompTIA Network+
Work EnvironmentServer management, system troubleshooting, OS configurationNetwork design, routing, switching, infrastructure setup
Industry UsageIT departments managing servers and OS environmentsTelecom, enterprise networks, data centers

The Senior Linux Windows System Administrator primarily manages server OS environments, ensuring system stability and security. In contrast, a Network Engineer focuses on designing and maintaining network infrastructure. While both roles require networking and OS certifications, their daily tasks and focus areas differ significantly, catering to different aspects of IT infrastructure.

What cities are hiring for Senior Linux Windows System Administrator jobs? Cities with the most Senior 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 Senior Linux Windows System Administrator jobs? States with the most job openings for Senior Linux Windows System Administrator jobs include:
Senior Linux Windows System Administrator jobs near you
Senior Linux System Administrator

Senior Linux System Administrator

ManTech

Laurel, MD • On-site

$128K - $214K/yr

Other

Medical, Life, Retirement, PTO

Posted 26 days ago

ManTech rating

8.8

Company rating: 8.8 out of 10

Based on 13 frontline employees who took The Breakroom Quiz

31st of 186 rated software companies

Job description

Description & Requirements
Unlock the secrets of intelligence with MANTECH! Join a dynamic team at the forefront of national security, providing advanced solutions to government intelligence agencies. Since 1968, we've been solving the toughest challenges with groundbreaking tech. Explore thrilling projects in Digital Transformation, Cybersecurity, IT, Data Analytics and Software Development. Elevate your career and make a difference. Your adventure begins now-unleash your potential with MANTECH!

MANTECH seeks a motivated, career-driven, and customer-focused Senior Linux and VMWare System Administrator to join our team in Laurel, MD.

This position supports the high-visibility Enterprise Infrastructure Services (EIS) organization, responsible for the delivery and security of MPO's Enterprise Information Technology (EIT), the foundation for enterprise-wide services. As a Senior System Administrator, you will work alongside customers, Integrated Product Teams (IPTs), and vendors to support the implementation and compliance of advanced EIT capabilities through Data Center & Compute Services.

Responsibilities include, but are not limited to:

  • Provide Tier 1 (Help Desk) and Tier 2 (Escalation) problem identification, diagnosis, and resolution of problems.
  • Provide support to IT systems including day-to-day operations, monitoring & problem resolution for all the client/server/storage/network devices, etc.
  • Configure and manage Linux, and possibly Windows operating systems, installs/loads operating system software and patches to maintain security compliance, troubleshoot, maintain integrity of and configure network components, along with implementing operating system enhancements to improve reliability & performance.
  • Patching and updating Linux distributions regarding security findings.
  • Adding / Removing users and setting permissions to meet certain user privileges.
  • Working with STIGs and fixing/updating vulnerabilities with STE/STN findings.
  • Renew Linux server certificates and applying updates to TLS security versions.
  • Working with automation software such as ANSIBLE to streamline updates and patching.

Minimum Qualifications:

  • Bachelor's degree with 12+ years of relevant System Administration experience OR Associates degree with 15 years of relevant System Administration experience
  • Senior level Linux Systems Administration experience is required
  • Experience with VMWARE, vSphere, VCF (VMware Cloud Foundations)
  • Server and Hardware maintenance
  • Knowledge of patching & updating Linux distributions regarding security findings.

Preferred Qualifications:

  • 20 years of relevant System Administration experience (no degree requirement)
  • Experience with Tier 1 (Help Desk) and Tier 2 (Escalation) problem identification, diagnosis, and resolution of problems.
  • Experience with monitoring tools like NAGIOS.

Clearance Requirements:

  • Must possess and maintain a current/active TS/SCI clearance with Polygraph
     

Physical Requirements:

  • Must be able to remain in a stationary position 50% of the time
  • Occasionally moves about inside the office to access file cabinets, office machinery, etc.
  • Frequently communicate with co-workers, management, and customers, including delivering presentations. Must be able to exchange accurate information in these situations

The projected compensation range for this position is $128,000.00-$214,400.00. There are differentiating factors that can impact a final salary/hourly rate, including, but not limited to, Contract Wage Determination, relevant work experience, skills and competencies that align to the specified role, geographic location (For Remote Opportunities), education and certifications as well as Federal Government Contract Labor categories.  In addition, MANTECH invests in its employees beyond just compensation.  MANTECH's benefits offerings include, dependent upon position, Health Insurance, Life Insurance, Paid Time Off, Holiday Pay, short-term and long-term Disability, Retirement and Savings, Learning and Development opportunities, wellness programs as well as other optional benefit elections.

MANTECH considers all qualified applicants for employment without regard to disability or veteran status or any other status protected under any federal, state, or local law or regulation.
If you need a reasonable accommodation to apply for a position with MANTECH, please email us at careers@mantech.com and provide your name and contact information.

What ManTech employees say

Pay

Benefits

Hours and flexibility

Workplace

Get the full story on Breakroom

Apply