DoD Cyber Infrastructure Engineer & Systems Admin

Jobtome; Castle Rock (SD); On-site; USD 71,000 - 131,000; Full time

Benefits offered by this job

Health insurance

401(k) match

Paid time off

Job summary

L3Harris is seeking a skilled Cyber Infrastructure Systems Engineer to join the Colorado Springs, CO team. The role focuses on administering Windows-based servers and workstations in a DoD-cleared enterprise, implementing system hardening, and overseeing patching, vulnerability remediation, and RMF controls.

The position requires a DoD clearance, DoD 8570.01-M IAT Level 2 certifications, and experience in a regulated environment.

Qualifications

• Bachelor’s Degree with minimum 2 years of related experience; graduate degree or equivalent with 0–2 years; or 6+ years if no degree.
• Secret Clearance
• DoD 8570.01-M IAT Level 2 certification: CCNA-Security, Security+ CE, or higher
• Experience administering Windows-based servers in a DoD environment
• Patching, security updates, and hardening per DoD standards and RMF controls

Responsibilities

• Administer, maintain, and support Windows-based servers and workstations in a cleared enterprise DoD environment.
• Manage deployment of OS patches, security updates, and hotfixes per maintenance schedules.
• Implement system hardening using DoD standards and STIGs.
• Perform vulnerability identification and remediation for RMF controls and audit readiness.
• Monitor performance, availability, and health of mission systems.
• Troubleshoot hardware/software/OS/access issues per security procedures.
• Maintain accurate configurations and documentation for CM and inspections.
• Coordinate with cybersecurity, network, and program teams for accreditation and incidents in classified environments.

Skills

Secret Clearance

Windows server admin

Patch management

System hardening

Vulnerability remediation

Education

Bachelor's Degree

Graduate Degree or equivalent

6 years experience in lieu of degree

Tools

KVM

VMware

Docker

OpenShift

vSphere/vCenter

RHEL

Job description

L3Harris is seeking a skilled Cyber Infrastructure Systems Engineer to join the Colorado Springs, CO team. The role focuses on administering Windows-based servers and workstations in a DoD-cleared enterprise, implementing system hardening, and overseeing patching, vulnerability remediation, and RMF controls.

The position requires a DoD clearance, DoD 8570.01-M IAT Level 2 certifications, and experience in a regulated environment.