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Senior Specialist, Systems Administrator

L3Harris


Job Location:

Palm Bay, FL - USA

Monthly Salary: Not provided by the employer
Posted: 11 July 2026 (30+ days ago)
Application Deadline: 8 October 2026
Vacancies: 1 Vacancy

Job Summary

Job Title: Senior Specialist Systems Administrator
Job Code: 40555
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:

  • Bachelors 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).

#LI-FS1


Required Experience:

Senior IC


About Company

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At L3Harris, we anticipate and mitigate risk with agile end-to-end solutions that meet our customers' mission-critical needs across all domains.

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