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Windows Server Administrator - Day Shift

Leidos1,904 open roles

Where
Arlington, VA
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Your applicationOpen nowWindows Server Administrator - Day ShiftLeidos · Arlington, VA

  1. YouYes, apply to this one.

  2. CV RocketCV written for this posting.

  3. 25 readersRecruiter, hiring manager, skeptic. Round after round.

  4. CV RocketApplied on Leidos's own form.

The reply lands in your private mailbox

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The clock on this job

Early applications get read.

12.3% of postings close within 7 days. Measured by our own scanner across the market. Leidos postings stay open a median of 7 days.

Share of postings closed within
  1. 2.1%1 day
  2. 4.5%3 days
  3. 12.3%7 days
  4. 19.7%14 days
  5. 35.6%30 days
  6. 58.0%60 days
This job: posted today

Leidos median: 7 days open

The posting

We are currently seeking a Windows Systems Administrator 1st shift (6AM to 2PM) to join the Compartmented Enterprise Services Office (CESO) effort. This program is establishing a modern secure web service (SWS) operation as part of a state-of-the-art, highly automated platform capable of supporting a rapidly expanding customer population. Apply today to become part of the Leidos team that is assisting CESO as they migrate to a high security cloud environment by providing network and communication services, monitoring services, and system administration.

This position is based in Arlington, VA and is 100% on-site.

Primary Responsibilities

  • Administer and maintain Windows Server environments across physical and virtual infrastructure.
  • Manage Active Directory, DNS, DHCP, Group Policy, and Microsoft-based infrastructure services.
  • Perform server installation, configuration, upgrades, patching, and troubleshooting.
  • Monitor server performance, availability, capacity, and system health.
  • Manage user accounts, permissions, security groups, and access controls.
  • Support virtualization platforms such as VMware.
  • Implement and maintain server backup and disaster-recovery procedures.
  • Troubleshoot operating-system, application, network, and server-related issues.
  • Apply security updates, hardening standards, and vulnerability remediation.
  • Maintain technical documentation, configuration records, and operational procedures.
  • Participate in incident response, change management, and infrastructure projects.
  • Automate routine administrative tasks using PowerShell where appropriate.
  • Provide escalation-level support for Windows infrastructure issues.

Basic Qualifications

  • Bachelor's degree and 2+ years of overall related experience with a Windows servers environment. Additional experience, education and training may be considered in lieu of degree.
  • An active TS/SCI security clearance is required for this position.
  • Currently possess DoD 8750 certification at least IAT level II, e.g Security+ce.
  • Comfortable working 24×7 shifts, including nights, weekends, and holidays.
  • Candidate may be asked to obtain CI Poly in future
  • Experience with configuration, troubleshooting and maintaining VMware environments.
  • Experience with PowerShell scripting and experience in other languages like Python.
  • Experience with application of security settings and other commercial best practices such as DISA STIGS.
  • Proficient with Active Directory, DNS, DHCP, Group Policy, and Microsoft-based infrastructure services.
  • Experience with System (hardware) and application (software) installation and configuration.
  • Application of security settings and other commercial best practices such as DISA STIGS.
  • Strong troubleshooting and problem-solving skills.

Preferred Qualifications

  • Prior experienced with DISA and DISA’s support to mission partners
  • TS/SCI w/CI Poly Preferred
  • Experience with AWS EC2, S3.
  • Candidates with a thorough knowledge of networking principles to included TCP/IP a plus.
  • Experience with a ticketing system such as BMC Remedy.
  • Linux OS experience.

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:

October 27, 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 $59,150.00 - $106,925.00

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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