Lead System Administrator: Security-Focused Infra Leader

Leidos; Norfolk (VA); On-site; USD 87,000 - 157,000; Full time

Job summary

Leidos is seeking a Lead System Administrator for our Hampton Roads IT operations in Virginia. The role focuses on provisioning, configuring, and maintaining enterprise infrastructure with a security-first approach.

Ideal candidates bring robust leadership and 3–5 years in system administration, Windows/Linux, and virtualization. On-site or hybrid work options apply, with a strong emphasis on RMF/STIG compliance and automated management.

Qualifications

• Must have 3–5 years of progressive experience in system administration
• Must be a U.S. citizen with an active DoD Secret clearance
• DoD 8570.01-M IAT II certification (e.g., Security+ CE, CySA+, CCNA Security, GSEC, SSCP); AZ-900 and Network+ preferred
• Position is in Hampton Roads, VA; on-site or hybrid as required
• Experience across Windows/Linux and virtualized environments

Responsibilities

• Administer, monitor, and maintain physical and virtual servers and storage
• Apply STIGs and RMF to systems and devices
• Perform vulnerability scans and patch management
• Develop automation scripts using PowerShell, Ansible, and Jenkins
• Manage enterprise backup and disaster recovery procedures
• Provide Tier III support and maintain SOPs and topology documentation

Skills

Leadership

System administration

Security compliance (RMF/STIG)

Automation & DevOps

Vulnerability management

IAT II Certification

AZ-900 Certification

Tools

PowerShell

Ansible

Jenkins

ACAS/Nessus

Job description

Leidos is seeking a Lead System Administrator for our Hampton Roads IT operations in Virginia. The role focuses on provisioning, configuring, and maintaining enterprise infrastructure with a security-first approach.

Ideal candidates bring robust leadership and 3–5 years in system administration, Windows/Linux, and virtualization. On-site or hybrid work options apply, with a strong emphasis on RMF/STIG compliance and automated management.