DoD-Cleared Cyber Infrastructure Engineer | Windows Sys Admin

Jobtome; Virginia; On-site; USD 71,000 - 131,000; Full time

Benefits offered by this job

Health insurance

401(k) match

Flexible spending accounts

EAP

Education assistance

Parental leave

Paid time off

Company-paid holidays

Job summary

L3Harris Technologies is seeking a Cyber Infrastructure Systems Engineer to join our Colorado Springs team. The role focuses on Windows server/workstation administration in a cleared DoD environment, with emphasis on patching, hardening, and compliance to RMF controls.

Ideal candidates have a DoD 8570.01-M IAT II certification path, 2+ years of related experience, and relevant certifications. Collaboration with cyber, network, and program teams ensures secure operations and compliant

Qualifications

• Bachelor's Degree and a minimum of 2 years of prior related experience.
• Graduate Degree or equivalent with 0 to 2 years of prior related experience.
• In lieu of a degree, minimum of 6 years of prior related experience.
• Secret Clearance.
• DoD 8570.01-M IAT Level 2 Required.
• Professional Certifications: CCNA- Security, Security+ CE, or higher certification.

Responsibilities

• Administer, maintain, and support Windows-based servers and workstations within a cleared enterprise or mission-critical DoD environment.
• Manage the deployment of operating system patches, security updates, and hotfixes in accordance with approved maintenance schedules and security requirements.
• Implement and sustain system hardening measures using applicable DoD security standards, STIGs, and organizational cybersecurity policies.
• Perform vulnerability identification and remediation activities to support compliance with RMF controls, POA&M tracking, and audit readiness efforts.
• Monitor system performance, availability, and operational health to ensure reliability and continuity of mission systems.
• Troubleshoot and resolve hardware, software, operating system, and access-related issues while adhering to established security procedures.
• Maintain accurate system configurations, change records, and technical documentation to support configuration management and compliance inspections.
• Coordinate with cybersecurity, network, and program teams to support accreditation activities, incident response, and secure system operations in classified or controlled environments.

Skills

DoD security standards

RMF controls

System hardening

Vulnerability remediation

Patch management

Education

Bachelor's Degree

Graduate Degree or equivalent

6+ years experience in lieu of degree

Tools

KVM

VMware

vSphere/vCenter

OpenShift

Docker

Job description

L3Harris Technologies is seeking a Cyber Infrastructure Systems Engineer to join our Colorado Springs team. The role focuses on Windows server/workstation administration in a cleared DoD environment, with emphasis on patching, hardening, and compliance to RMF controls.

Ideal candidates have a DoD 8570.01-M IAT II certification path, 2+ years of related experience, and relevant certifications. Collaboration with cyber, network, and program teams ensures secure operations and compliant