Senior Linux Systems Engineer (TS/SCI)

CACI; Fort Meade (MD); On-site; USD 121,000 - 266,000; Full time

Job summary

CACI is seeking a Linux Systems Administrator to support mission-critical DoD/IC infrastructure at our secure Fort Meade facility. You will provide advanced Linux admin, virtualization, automation, and cybersecurity compliance to ensure high availability and operational readiness.

The role requires a TS/SCI clearance with polygraph, a 10+ year track record in enterprise systems administration, and DoD 8570/8140 IAT II level certifications.

Qualifications

• Bachelor's degree in Information Technology, Computer Science, Engineering, or related field.
• 10+ years of progressive Systems Administration experience supporting enterprise IT infrastructure in secure Linux environments.
• DoD 8570/8140 IAT Level II certification (Security+, CySA+, CCNA Security, or equivalent)

Responsibilities

• Provide advanced systems administration for mission-critical enterprise infrastructure.
• Support network infrastructure, virtualization, automation, and cybersecurity compliance.
• Ensure high availability, security, and operational readiness in secure environments.
• Troubleshoot complex infrastructure issues in highly classified environments.

Skills

TS/SCI clearance

Polygraph

Linux Admin

VMware virtualization

Python scripting

Ansible playbooks

Bash scripting

Security hardening

DoD cybersecurity

Education

Bachelor's degree in IT/CS/Engineering

Tools

Cisco ASA

Cisco Firepower

Palo Alto

IPSEC VPNs

Nessus

Active Directory

Job description

CACI is seeking a Linux Systems Administrator to support mission-critical DoD/IC infrastructure at our secure Fort Meade facility. You will provide advanced Linux admin, virtualization, automation, and cybersecurity compliance to ensure high availability and operational readiness.

The role requires a TS/SCI clearance with polygraph, a 10+ year track record in enterprise systems administration, and DoD 8570/8140 IAT II level certifications.