Leidos is seeking a Windows Systems Administrator to join a small but highly impactful team. You will support systems with significant importance to our customer while enjoying flexibility in how the job is done and having the opportunity to expand the breadth of your technical skills. In this role you will support the maintenance of classified Windows systems on a standalone network across CONUS with planned expansion.

Responsibilities

• Configuration of workstations, servers and peripheral devices to include RAID configurations, BIOS configurations and Thin Client configurations.
• Configure and administer Windows Server Operating Systems including Group Policy Objects, Active Directory Users and Computers, DNS, Active Directory Sites and Services, WSUS, SQL, and IIS.
• Configure and administer Windows Desktop Operating Systems.
• Interact with staff for troubleshooting and system configuration requirements.
• Apply DISA Security Technical Implementation Guide (STIGs) for Windows Desktop and Server Operating Systems.
• Configure third-party software to function with existing systems in an offline environment.
• Maintain and configure backup solutions for the network.
• Assist the team with improving systems, procedures and documentation for long-term sustainment.
• Monitor the health and security of the network using various tools such as Nessus, Splunk, and SolarWinds.

Basic Qualifications

• Bachelor’s Degree in Information Technology related field with 4 years of experience; additional years of directly applicable experience may be acceptable in lieu of a degree.
• DoD 8140 IAT Level 2 Certification.
• Experience configuring and maintaining Microsoft Windows Server and Desktop products.
• Knowledge of NIST 800-53 controls, security polices and general vulnerabilities management.
• Ability to communicate detailed technical information effectively verbally and in writing in support of troubleshooting and new implementation efforts.
• Must possess a current/active DoD TS/SCI clearance in order to be considered.

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:

April 6, 2026

Pay Range:

Pay Range $87,100.00 - $157,450.00

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.