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(Linux Administrator) Sr. Specialist, Systems Administration

L3Harris


Job Location:

Tulsa, OK - USA

Monthly Salary: Not provided by the employer
Posted: 7 August 2026 (30+ days ago)
Application Deadline: 6 January 2027
Vacancies: 1 Vacancy
The job posting is outdated and position may be filled

Job Summary

Job Title: (Linux Administrator) Sr. Specialist Systems Administration

Job Code: 42157

Job Location: Tulsa OK

Job Schedule: 9/80 employees work 9 out of 14 days- totaling 80 hours worked- and have every other Friday off

Job Description:

Experienced Linux Administrator responsible for maintaining a mixed Windows and Linux system environment. This candidate should understand networking concepts be capable of performing system patching and STIG hardening be proficient with deployment using automation tools as well as having experience providing end user support to the desktop level. The person in this position must be able to communicate technical concerns and solutions to varying levels of management and program engineering teams and is also responsible for leading IT projects at the local addition this position will provide managerial support for 2 on-site system administrators.

Essential Functions:

  • Responsible for administration and maintenance of Red Hat Linux servers and workstations
  • Ensure compliance with computer security policy including NIST 800-53 and DISA STIGs
  • Respond to support tickets & interface with users
  • Develop and monitor policies and standards and develop documentation related to the use of computing resources
  • Interact with the business and program leadership to evaluate vendor products and make hardware and software recommendations
  • Managerial support for on-site system administration team to include performance evaluations and budget management.

Qualifications:

  • Bachelors Degree and minimum 6 years of prior relevant experience. Graduate Degree and a minimum of 4 years of prior related lieu of a degree minimum of 10 years of prior related experience.
  • 8 years of experience in/with: Red Hat Linux administration networking (TCP/IP network interfaces subnets) shell scripting troubleshooting cybersecurity practices (patch management STIG compliance system accreditation etc.)
  • Current/Active Secret Security Clearance

Preferred Additional Skills:

  • CompTIA Security CISSP or any DoD 8140 approved certification
  • Ability to function independently with minimal direction
  • Willingness to train and adapt to new technologies
  • Ability to function in a team environment; collaborate with other team members.
  • Good interpersonal skills for interfacing with direct reports users and business/program management
  • Experience with LDAP VMware Citrix Centrify VDI
  • Experience with authenticating RHEL logins to Active Directory
  • Automation & enterprise deployment tools (Satellite Ansible Kickstart)
  • Knowledge of storage appliances (e.g. NetApp)
  • Familiarity with backup concepts and solutions (e.g. CommVault)
  • Working knowledge of Samba and NFS

#LI-LT2


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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