Systems Administrator

About the role

Systems Administrator

Location: Suitland, MD
Clearance: Active TS/SCI Required

Leidos is seeking an experienced Systems Administrator with Windows and macOS experience to support the Office of Naval Intelligence (ONI) in Suitland, MD.

In this role, you will provide critical IT and cybersecurity support for systems used in Scientific and Technical Intelligence (S&TI) analysis. You'll work with advanced workstations, graphics systems, laboratory equipment, and specialized technologies supporting engineering analysis, parametric modeling, and foreign material exploitation.

This is an opportunity to apply your technical expertise in a mission focused environment where system reliability, security, and performance directly support national security operations.

Primary Responsibilities

• Troubleshoot and resolve technical issues involving Windows systems, hardware, software, and network components within established timelines.
• Support Windows 11 upgrades, system maintenance, software updates, and hardware replacements.
• Perform Active Directory administration, including account creation and troubleshooting.
• Support SCCM deployments, SQL Server troubleshooting, and Group Policy updates.
• Implement and maintain Security Technical Implementation Guide (STIG) configurations and updates.
• Track and document change requests and trouble tickets using ServiceNow or Remedy AR.
• Maintain configuration management records, asset lifecycle documentation, and Standard Operating Procedures (SOPs).
• Prepare weekly reports documenting completed work and system activities.
• Support desktop system updates, security accreditation activities, and system authorizations.
• Assist with Risk Management Framework (RMF) activities and compliance with ODNI, ATLAS, DORA, ORCA, DIA, DoD, DISA, Navy, NIA, and ONI policies.
• Collaborate with technical teams to support IT infrastructure, applications, and services.

Basic Qualifications

• Active TS/SCI clearance in DISS and required program access.
• Bachelor's degree with 8+ years of experience or a Master's degree with 6+ years of experience. Additional training, certifications, or work experience may be considered in lieu of a degree.
• Active DoD 8140 IAT Level II certification (such as CompTIA Security+ CE) or the ability to obtain within 30 days of offer acceptance.
• 5+ years of Windows Systems Administration experience, including Windows 11 upgrades and extensive knowledge of Windows hardware, software, and networking components.
• Hands-on experience with Active Directory administration and account creation, SCCM deployments, SQL Server troubleshooting, Group Policy management, and STIG implementation and updates.
• Experience with IT infrastructure installation, evaluation, maintenance, and Microsoft Azure Cloud Administration.
• Knowledge and experience with C&A, DIACAP, RMF, ICD-503, and/or NIST Framework requirements.
• Experience maintaining technical documentation, preparing weekly reports, and creating and updating Standard Operating Procedures (SOPs).
• Strong troubleshooting, problem solving, and communication skills, including the ability to coordinate with technical teams to support services and applications.
• Ability to work onsite during core business hours.

Preferred Qualifications

• 1+ years of experience with Lynex administration.
• Current Microsoft Azure certification(s).
• Active DoD TS/SCI clearance with polygraph.

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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

November 2, 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.