Senior Associate, Systems Administrator – TS/SCI with FS Poly

L3Harris Technologies

. Provide end-user desktop support for systems and applications locally and across the classified WAN .

Posted 9/15/2026full-timePalm Bay • Florida • United StatesSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in providing end-user desktop support, system administration, and network management while ensuring compliance with security standards. Proficient in communicating technical issues to both technical and non-technical stakeholders.

Highest-signal resume keywords

Microsoft Windows SupportMicrosoft Office ApplicationsWindows Operating SystemLinux Operating SystemsCurrent Active TS/SCI Clearance

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

System AdministrationNetwork ManagementDesktop SupportPatchingSecurity Best PracticesPowerShellVirtualization AdministrationBackup and Recovery SolutionsProject CoordinationCompliance Maintenance

Soft Skills

CommunicationCollaboration

Tools & Technologies

Red Hat Enterprise Linux (RHEL) 8/9CentOSUbuntuVMwareCommvault

Industry Keywords

Classified WANEnd-User SupportTechnical IssuesVulnerabilitiesTechnical Recommendations

Tech Stack

Tools & technologies

LinuxTypeScriptVMware

About the role

Key responsibilities & impact

Provide end-user desktop support for systems and applications locally and across the classified WAN
Perform routine system updates, patching, and hardening to reduce vulnerabilities and maintain compliance with applicable standards
Partner with program engineering teams to understand requirements and deliver IT solutions aligned with program needs and schedules
Communicate technical issues, risks, and recommendations to management and non-technical stakeholders
Support classified Windows desktop systems and essential applications
Combine system administration, network management, project coordination, and desktop/software support to ensure reliable and secure day-to-day operations

Requirements

What you’ll need

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
Experience with Microsoft Windows and Microsoft Office applications
Working knowledge of Windows and/or Linux operating systems, networking protocols, PowerShell, and security best practices
Current active TS/SCI clearance with a full-scope polygraph
Preferred: Hands-on experience supporting Linux systems, including Red Hat Enterprise Linux (RHEL) 8/9, CentOS, and Ubuntu
Preferred: Experience administering VMware or comparable virtualization platforms
Preferred: Experience working with Commvault or similar backup and recovery solutions

Benefits

Comp & perks

9/80 schedule: Employees work 9 out of every 14 days, totaling 80 hours worked, with every other Friday off
Reasonable accommodation for individuals with disabilities