System Administrator

System Administrator (TS/SCI) - Fort Meade, MD Level up your career at Leidos, where you’ll tackle high-impact national security challenges and support ACC’s ISR mission. What You’ll Do

• Manage LAN/WAN and keep critical networks running smoothly
• Design and monitor systems across a complex enterprise
• Install/configure servers, software, and domain services
• Troubleshoot advanced issues with Network Admins
• Plan deployments for hardware, OS, and applications
• Manage accounts & access and enforce security controls
• Resolve interoperability and system performance issues
• Ensure system availability, integrity, and security
• Maintain configuration management, upgrades, and fixes
• Support leadership through technical input and special projects

• Must have a current TS/SCI security clearance and be able to pass a polygraph after being hired
• Bachelor’s + 8 years of related experience. Additional years of related experience or advanced certifications may be considered in lieu of a degree
• Strong System Administration background
• VMware, Windows Server, GPOs, DHCP/DNS/AD
• SAN storage experience
• Linux knowledge
• IT security fundamentals
• Must hold a Security+ or equivalent IAT Level II (or higher) certification.

Preferred Qualifications

• Cisco ISE, PowerShell, clustering
• WDS, advanced config management
• VCP, MCSA, VCAP, CCIE, CCNP

Pay and benefits are fundamental to any career decision. That’s why we craft compensation packages that reflect the importance of the work we do for our customers. Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement. More details are available at . Securing Your Data Beware of fake employment opportunities using Leidos’ name. Leidos will never ask you to provide payment-related information during any part of the employment application process (i.e., ask you for money), nor will Leidos ever advance money as part of the hiring process (i.e., send you a check or money order before doing any work). Further, Leidos will only communicate with you through emails that are generated by the Leidos.com automated system - never from free commercial services (e.g., Gmail, Yahoo, Hotmail) or via WhatsApp, Telegram, etc. If you received an email purporting to be from Leidos that asks for payment-related information or any other personal information (e.g., about you or your previous employer), and you are concerned about its legitimacy, please make us aware immediately by emailing us at . If you believe you are the victim of a scam, contact your local law enforcement and report the incident to the . Commitment to Non-Discrimination 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.

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: May 15, 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. About 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 $16.7 billion for the fiscal year ended January 3, 2025. For more information, visit .