Senior Specialist, Cyber Infrastructure Systems Engineer

L3Harris Technologies

. Configure, monitor, maintain, and troubleshoot Red Hat Linux systems (both physical and virtual).

Posted 4/28/2026full-timeColorado Springs • Colorado • 🇺🇸 United StatesSenior💰 $80,500 - $149,500 per yearWebsite

Tech Stack

Tools & technologies

DNSDockerLinuxMicroservicesSMTPTCP/IPVMware

About the role

Key responsibilities & impact

Configure, monitor, maintain, and troubleshoot Red Hat Linux systems (both physical and virtual).
Implement and maintain security controls in compliance with DoD security frameworks and RMF requirements, integrating RMF principles into ground-up builds and ongoing security administration.
Manage and maintain Windows systems to ensure their optimal performance and reliability.
Administer and maintain Linux systems, with a specific focus on Red Hat Enterprise Linux (RHEL).
Utilize virtualization technologies such as KVM, VMware, vSphere/vCenter, and microservices/containers (e.g., Docker) to enhance system functionality and efficiency.
Ensure the smooth operation and maintenance of server systems and network infrastructure to support business continuity and performance.
Possess a strong understanding of network protocols and services including TCP/IP, DNS, DHCP, SMTP, and SNMP to manage and optimize network performance.
Monitor system performance and resource usage, identify potential problems, and implement solutions to maintain system resilience and security.
Customize, optimize, and troubleshoot enterprise-level applications.
Utilize Continuous Integration/Continuous Deployment (CI/CD), agile system development, and DevSecOps tools and processes.
Provide infrastructure and systems expertise to support systems engineering activities including technical planning, system integration, verification and validation, and cost/risk analyses.
Support engineering teams with analyses at all levels of total system product including concept, design, fabrication, test, installation, operation, maintenance, and disposal.
Assist with the conversion of customer or product requirements into total systems solutions that acknowledge technical, schedule, and cost constraints.
Support functional analysis, timeline analysis, trade studies, requirements allocation, and interface definition studies to translate requirements into hardware and software specifications.

Requirements

What you’ll need

Bachelor’s Degree with a minimum of 6 years of relevant experience, or Graduate Degree with a minimum of 4 years of relevant experience, or in lieu of a degree, a minimum of 10 years of prior related experience.
Secret Clearance
DoD 8570.01-M IAT Level 2 Required
Professional Certifications: CCNA-Security, Security+ CE, or higher certification.
Preferred Additional Skills: Current Linux Certifications such as RedHat Certification (RHCSA or RHCE) or CompTIA Linux+.
Experience working with continuous integration, build management, and automated test frameworks.
Experience integrating and administering cross-domain systems.
Experience utilizing virtualization technologies and backup solutions.
Experience in a dynamic, fast-paced, team-oriented environment.

Benefits

Comp & perks

health and disability insurance
401(k) match
flexible spending accounts
EAP
education assistance
parental leave
paid time off
company-paid holidays

ATS Keywords

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Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools

Red Hat LinuxWindows systems managementnetwork protocolssystem performance monitoringContinuous IntegrationContinuous DeploymentDevSecOpssystem integrationtroubleshootingsecurity controls

Soft Skills

analytical skillsproblem-solvingteam-orientedcommunicationtechnical planningorganizational skillsadaptabilitycollaborationtime managementattention to detail

Certifications

Bachelor's DegreeGraduate DegreeSecret ClearanceDoD 8570.01-M IAT Level 2CCNA-SecuritySecurity+ CERedHat CertificationRHCSARHCECompTIA Linux+