Systems Administrator

00100 LEIDOS, INC.; Suitland (MD); On-site; USD 92,000 - 167,000; Full time

Job summary

Leidos is seeking a Systems Administrator to support Office of Naval Intelligence in Suitland, MD. The role requires TS/SCI and hands-on experience with Windows and macOS in a security-conscious environment.

You will manage Active Directory, SCCM, SQL Server, Group Policy, and STIGs while coordinating RMF activities and IT infrastructure support. Responsibilities include troubleshooting, upgrades, documentation, and collaboration with cross-functional teams to ensure secure, reliable systems.

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.
• Active DoD 8140 IAT Level II certification (e.g., CompTIA Security+ CE) or 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.

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 SOPs.
• Prepare weekly reports documenting completed work and system activities.
• Support desktop system updates, security accreditation activities, and RMF activities.

Skills

Windows Systems Administration

Active Directory administration

SCCM deployments

SQL Server troubleshooting

Group Policy management

STIG implementation

Azure Cloud Administration

Education

Bachelor's degree

Master's degree

Tools

Active Directory

SCCM

SQL Server

Group Policy

Azure Cloud

Job description

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&T I) 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.
• DABAOPP1 NITESONI

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.

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.

Leidos Leidos is an industry and technology leader serving government and commercial customers with smarter, more efficient digital and mission innovations. Headquartered in Reston, Virginia, with 47,000 global employees, Leidos reported annual revenues of approximately $17.2 billion for the fiscal year ended January 2, 2026. For more information, visit www.Leidos.com.

Pay & Benefits

Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement. More details are available here.

Securing Your Data

Leidos will never ask you to provide payment-related information at any part of the employment application process. And Leidos will communicate with you only through emails that are sent from a Leidos.com email address. If you receive an email purporting to be from Leidos that asks for payment-related information or any other personal information, please report the email to [e-mail].

Commitment & Diversity

All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.