Job Information

L3Harris Linux System Administrator in Arlington, Texas


Job Title: System Administrator

Job Code: AS20210305-60698

Job Location: Arlington, TX

Job Description:

If you are a driven System Administrator that seeks responsibility, continuous improvement, challenges and understands the importance of personal accountability, then we would like to speak to you.

L3Harris is seeking System Administrators with a background in both Linux and Windows System Administration. As a System Administrator at L3Harris you’ll work as part of a team of engineers from multiple disciplines to develop, maintain and deploy advanced simulation devices across the globe.

Responsibilities will include supporting all aspects of building, documenting and maintaining mixed (combination of both Windows and Linux) closed room infrastructures and setup and management of software development environments. In addition to supporting engineers and continuously solving problems you will create, test, update and execute automated and semi-automated procedures for configuring all of the components of our systems both in-house and at our customer sites.


  • A BS/BA in an engineering discipline or equivalent work experience.

  • Linux and Windows System Administration, knowledge of hardware and expertise in command line tools.

  • Event, audit and syslog analysis.

  • Knowledge of TCP/IP networking. Experience with managed switch and router setup.

  • Experience with scripting languages such as Bash/Powershell/Perl.

  • Problem solving skills.

  • Performing problem diagnosis, troubleshooting and resolution.

  • Attention to detail and strong communications skills to effectively interact with peers, project vendors and other teams.

  • Strong writing skills to effectively create/update documentation for setup procedures and other system documentation.

  • Ability to work independently and meet/manage obligations to assigned programs.

  • Ability to context change and support multiple product lines.

  • Ability to obtain and maintain a CompTIA Security + Certification.

  • Ability to obtain and maintain a DoD Secret Clearance is required.

    Preferred Qualifications:

  • Strong Red Hat Linux and Windows Server System setup and administration.

  • Windows/Linux integration: File Sharing, authentication.

  • Experience with Domain Controller setup and creation, management, update and deployment of Group Policy Objects.

  • Configure, manage and monitor storage systems (NAS, SAN, NFS etc).

  • Experience configuring Cisco and/or HP Networking.

  • Custom Automated Operating system deployment, such as Linux Kickstart, and Windows Deployment Toolkit.

  • Experience with Configuration Management.

  • Setup and management of Centralized Auditing.

  • Setup and management of centralized patching (such as YUM and WSUS).

  • Experience with System hardening (Implementation of the Security Technical Implementation Guides (STIG)).

  • Experience with vulnerability scanners such as ACAS/Nessus and SCAP.

  • Experience with version control tools such as ClearCase, Git, Bitbucket.

  • Security+ or CISSP Certification.

  • OS (Such as Red Hat or Windows) or networking certifications.

  • Project management skills, proposal advice, planning, scheduling, coordinating resources and budgets.

L3Harris Technologies is proud to be an Affirmative Action/Equal Opportunity Employer. L3Harris is committed to treating all employees and applicants for employment with respect and dignity and maintaining a workplace that is free from unlawful discrimination. All applicants will be considered for employment without regard to race, color, religion, age, national origin, ancestry, ethnicity, gender (including pregnancy, childbirth, breastfeeding or other related medical conditions), gender identity, gender expression, sexual orientation, marital status, veteran status, disability, genetic information, citizenship status, characteristic or membership in any other group protected by federal, state or local laws. L3Harris maintains a drug-free workplace and performs pre-employment substance abuse testing and background checks, where permitted by law.