Senior Classified IT Systems Engineer - Mission-Critical CoE

Lockheed Martin; Orlando (FL); On-site; USD 85,000 - 158,000; Full time

Benefits offered by this job

Medical benefits

Flexible work arrangements (e.g., 4x10

401(k) match

Paid time off and Holidays

Job summary

Lockheed Martin is seeking an experienced System Engineer to join the Classified IT Center of Excellence (CoE) in Orlando, FL. The role focuses on administering Linux and Windows systems, networks, and storage within a secure, DoD-aligned environment.

You will lead system integration, upgrades, and sustainment, ensure security policies, and collaborate with cross-functional teams to deliver mission-critical IT solutions. On-call and travel to other Lockheed Martin facilities may be required.

Qualifications

• 3+ years system administration in Linux/Windows, networking, and storage.
• Experience planning, integrating, or analyzing IT systems.
• Troubleshooting across multiple system domains.
• Patching, updates, and configuration management experience.
• Understanding of networking concepts (IP, DNS, routing).
• DoD RMF/ STIG compliance in classified environments.
• Strong communication and teamwork abilities.

Responsibilities

• Perform routine updates, major upgrades, patching, and vulnerability scanning.
• Maintain asset inventory and ensure lifecycle compliance.
• Enforce DoD policies, including STIG and RMF requirements.
• Implement security hardening and remediation of findings.
• Coordinate with stakeholders to verify resolution and document changes.

Skills

Linux Admin

Windows Admin

Networking

Storage

RMF/STIG

Security Clearance

DoD Compliance

Tools

VMware NSX

vSAN

Horizon

NetApp

Dell VxRail

Jira

Confluence

Job description

Lockheed Martin is seeking an experienced System Engineer to join the Classified IT Center of Excellence (CoE) in Orlando, FL. The role focuses on administering Linux and Windows systems, networks, and storage within a secure, DoD-aligned environment.

You will lead system integration, upgrades, and sustainment, ensure security policies, and collaborate with cross-functional teams to deliver mission-critical IT solutions. On-call and travel to other Lockheed Martin facilities may be required.