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Windows L3 Systems Administrator Jobs (NOW HIRING)

Leidos

Windows Systems Administrator

Honolulu, HI · On-site

$92K - $166K/yr

Windows Systems Administrator Location: Pearl Harbor, Hawaii Security Clearance: Active TS/SCI Required Leidos is seeking a Windows Systems Administrator to support mission critical infrastructure ...

Via Logic LLC

Windows Systems Administrator

Pearl City, HI · On-site

$73K - $132K/yr

Windows Systems Administrator Leidos is seeking a Windows Systems Administrator III to support mission critical infrastructure for the U.S. Navy Fleet Command in Pearl Harbor, Hawaii. In this role ...

MethodHub

Windows Systems Administrator

Tallahassee, FL · On-site

Windows Systems Administrator Location: Tallahassee, FL 32311 (5 days onsite per week) Duration: 12 months * The client is in search of a Systems Administrator to play a key role in assisting the OIT ...

PGTEK

Windows Systems Administrator

Mclean, VA · On-site

$185K - $265K/yr

Senior System Administrator (Windows) Location: McLean, VA (transitioning to Chantilly, VA) Clearance Required: Active TS/SCI with CI Polygraph Salary Range: $185,000 - $265,000 Travel: Up to 20 ...

Sienna Systems

$112K - $117K/yr

Sienna Systems is seeking an experienced Windows Systems Administrator to join our Social Security Administration Special Notice Option (SNO) team in Alexandria, Virginia. SNO is how SSA delivers ...

Hireblazer

Windows Systems Administrator

Austin, TX · Remote

$45 - $50/hr

Windows Systems Administrator Duration: 6 months Location: Remote - Texas-based candidates preferred Summary: The client has issued a request for a System Administrator. This role manages and ...

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How much do windows l3 systems administrator jobs pay per year?

As of Sep 13, 2026, the average yearly pay for windows l3 systems 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.

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Windows Systems Administrator

Honolulu, HI • On-site

Leidos
IT Services • 10K+ employees
Learn more about Leidosexternal

$92K - $166K/yr

Full-time

Posted 12 days ago

Leidos rating

8.3

Company rating: 8.3 out of 10

Based on 154 frontline employees who took The Breakroom Quiz

Job description

Windows Systems Administrator
Location: Pearl Harbor, Hawaii
Security Clearance: Active TS/SCI Required
Leidos is seeking a Windows Systems Administrator to support mission critical infrastructure for the U.S. Navy Fleet Command in Pearl Harbor, Hawaii. In this role, you will administer and maintain Windows server environments supporting enterprise infrastructure, standardized desktop services, and secure mission operations. The ideal candidate has extensive experience managing Microsoft technologies, troubleshooting complex systems, and maintaining secure, high availability Windows environments.
Primary Responsibilities
  • Administer and manage advanced Windows Server environments and Microsoft enterprise services.
  • Maintain daily system operations by monitoring, identifying, troubleshooting, and resolving issues affecting servers, applications, and operating systems.
  • Perform performance tuning, hardware upgrades, and resource optimization to ensure reliable system performance.
  • Troubleshoot and resolve complex Windows Server issues.
  • Research, document, and recommend new system technologies and improvements.
  • Review and implement Information Assurance Vulnerability Alerts (IAVAs) and Information Assurance Vulnerability Bulletins (IAVBs).
  • Install, configure, secure, maintain, document, troubleshoot, and administer SQL databases to ensure optimal performance.
  • Support global operations by maintaining secure, resilient Windows infrastructure environments.
  • Travel may be required to support other U.S. Navy commands both within the continental United States (CONUS) and outside the continental United States (OCONUS).

Required Qualifications
  • Bachelor's degree with 8+ years of relevant experience or a Master's degree with 6+ years of relevant experience. Additional relevant experience may be considered in lieu of a degree.
  • Active TS/SCI clearance (in DISS).
  • Active CompTIA Security+ certification.
  • Active Windows Server operating system certification or the ability to obtain after hire.
  • Extensive experience administering enterprise Windows environments, including Active Directory (AD), Domain Name System (DNS), Dynamic Host Configuration Protocol (DHCP), Microsoft Exchange email services, Microsoft Azure Cloud, Remote Desktop Services, VMware, Omnissa, desktop management, and Windows Server services.
  • Experience performing advanced system troubleshooting.
  • Strong interpersonal and communication skills.

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If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo - because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 - and moving faster than anyone else dares.
Original Posting:
September 1, 2026
For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.
Pay Range:
Pay Range $92,300.00 - $166,850.00
The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

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About Leidos

Sourced by ZipRecruiter

At Leidos, we deliver innovative solutions through the efforts of our diverse and talented people who are dedicated to our customers' success. We empower our teams, contribute to our communities, and operate sustainable practices. Everything we do is built on a commitment to do the right thing for our customers, our people, and our community.

Industry

It services

Company size

10,000+ Employees

Headquarters location

Reston, VA, US

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