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

Basic Requirements

• •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

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 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.