Senior Specialist, Systems Administrator
L3HARRIS Technologies
Palm Bay, FL · Posted September 23, 2026
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About the job
Job Title: Senior Specialist, Systems Administrator Job Code: 43405 Job Location: Palm Bay, FL Job Schedule: 9/80: Employees work 9 out of every 14 days – totaling 80 hours worked, and have every other Friday off
Job Description:
We are seeking a dedicated System/Network Administrator to join our IT team. The ideal candidate will be responsible for maintaining the integrity, availability, and security of classified Windows systems and network infrastructure. This role involves a blend of system administration, network management, project coordination, vulnerability management, system hardening, and desktop/software support.
Essential Functions:
Administer and maintain Microsoft Windows servers, client systems, backup systems, network infrastructure, and databases.
Provide end user desktop support for systems and applications at the local site and across the classified WAN.
Build, configure, and maintain physical and virtual Windows servers in support of program requirements.
Perform regular system updates, patching, and hardening activities to reduce vulnerabilities and ensure compliance with applicable standards.
Develop and maintain scripts and automation tools to streamline deployment and improve operational efficiency.
Collaborate with engineering teams to understand program requirements and deliver effective technical solutions.
Communicate complex technical issues, risks, and recommendations clearly to management and non-technical stakeholders.
Qualifications:
Bachelor’s Degree and minimum 6 years of prior relevant experience. Graduate Degree and a minimum of 4 years of prior related experience; or, in lieu of a degree, minimum of 10 years of prior related experience.
Active TS/SCI clearance with full-scope polygraph.
Preferred Additional Skills:
6 years of experience as a System/Network Administrator supporting an enterprise-level domain environment.
Strong knowledge of Windows and/or Linux operating systems, networking protocols, PowerShell, and security best practices.
Experience supporting Linux systems, including Red Hat Enterprise Linux (RHEL) 8/9, CentOS, and Ubuntu.
Experience with Commvault or similar enterprise level backup system.
Experience with VMware or similar virtualization platforms.
Experience with Ansible.
Experience with Commvault or similar backup solutions.
Experience managing systems in compliance with the NIST Risk Management Framework (RMF).
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