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L3Harris Technologies

Global defense contractor delivering aerospace tech

Senior Specialist Systems Administrator

System AdministrationUpdated on Nov 14
Full-time

About the Job

Requirements

  • A bachelor's degree and at least six years of prior relevant experience, or a graduate degree and at least four years of prior related experience. In lieu of a degree, at least ten years of prior related experience is required.
  • At least four years of Linux and/or NetApp systems-administration experience.
  • Current, active TS/SCI security clearance and CI polygraph are required.
  • CompTIA Security+, CISSP, or any Department of Defense 8570 Information Assurance Technical Level I or higher approved certification is required.
  • Ability to support overtime as needed and lift equipment weighing up to 50 pounds.
  • Ability to support up to 20% offsite travel.

Responsibilities

  • Maintain, manage, configure, and troubleshoot Linux systems in secure program areas.
  • Install, configure, troubleshoot, upgrade, patch, and maintain Linux systems and related NetApp storage units, as well as maintain engineering software tools.
  • Perform as the subject matter expert responsible for configuring and maintaining Linux systems while ensuring system reliability, data integrity, and availability.
  • Implement routine system updates and patches, remediate findings and vulnerabilities, and maintain compliance with industry standards.
  • Monitor system health and proactively identify and resolve performance issues.
  • Develop and maintain scripts and tools for deployment automation to increase operational efficiency.
  • Collaborate with engineering teams to understand program requirements and deliver tailored technical solutions.
  • Communicate technical concerns, solutions, complex technical issues, and strategies clearly to management, engineering, security teams, and non-technical stakeholders.
  • Lead local information technology projects.
  • Perform other information technology duties as required.

Desired Qualifications

  • Experience working with Nessus Security Center.
  • Experience working with Cisco/Ariba Network and network protocols.
  • Experience working with Windows Distributed File System (DFS).
  • Experience working with Active Directory.
  • Experience with Commvault or a similar backup solution.
  • Experience managing systems under the National Institute of Standards and Technology Risk Management Framework.
  • At least two years of experience with VMware or similar virtualization solutions.
  • At least one year of experience with Ansible Automation.
  • Strong knowledge of Linux operating systems, NetApp storage devices, networking protocols, PowerShell or Bash, and security best practices.

About the Company

L3Harris Technologies

Global defense contractor delivering aerospace tech

L3Harris Technologies provides advanced aerospace, defense, and space systems for governments and commercial customers. Its products include sensors, communications, and propulsion—such as tactical radios, night-vision gear, satellite payloads, missile defense, and space propulsion—delivered as integrated systems for operations across air, land, sea, space, and cyber domains. The company blends legacy technologies from two joining giants with newer capabilities, faster acquisition cycles, and a focus on missiles, space, and resilient communications to field solutions quickly. Its goal is to be a trusted, scale-ready provider of next‑generation defense and intelligence capabilities for national security and related customers.

Company size
10,001+
Company stage
IPO
Headquarters
Melbourne, FL
Founded
1895

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