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Senior Specialist, Systems Administrator TS/SCI w/ Poly Melbourne, FL

Melbourne, Florida

Job ID 11842
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L3Harris is dedicated to recruiting and developing diverse, high-performing talent who are passionate about what they do. Our employees are unified in a shared dedication to our customers’ mission and quest for professional growth. L3Harris provides an inclusive, engaging environment designed to empower employees and promote work-life success. Fundamental to our culture is an unwavering focus on values, dedication to our communities, and commitment to excellence in everything we do.

L3Harris Technologies is an agile global aerospace and defense technology innovator, delivering end-to-end solutions that meet customers’ mission-critical needs. The company provides advanced defense and commercial technologies across space, air, land, sea and cyber domains. L3Harris has approximately $18 billion in annual revenue and 50,000 employees, with customers in more than 100 countries.

Job Title: Senior Specialist, System Administration
Job Code: 11842
Job Location: Melbourne, FL

Job Description: 
L3Harris corporation is seeking a dynamic System Administrator to perform critical system design and implementation in unique and challenging programs.  The selected candidate will be part of an exclusive national security program and work on the design, development, deployment, and O&M for critical wireless, infrastructure and/or communication programs.  Bring your talents to the front line at the cutting edge of Defense and Technology at L3Harris.  

Essential Functions:

  • Experience in systems administration of AWS/EC2/S3 cloud environments
  • Experience managing the AWS life cycle, along with security, provisioning, and orchestration of systems using industry standard Infrastructure as Code (IaC) tools such as CloudFormation, Terraform, or Ansible.
  •  Experience maintaining access control, data integrity, and data flow of AWS applications
  • Experience with Windows 10/Windows Server/RHEL 8
  • Experience customizing, optimizing, and troubleshooting enterprise level applications 
  • Experience configuring and maintaining Linux virtual systems 
  • Experience in Linux automation using Kickstart, Podman and Ansible
  • Experience in Using Containers and Docker
  • Experience deploying infrastructure through automation 
  • Experience with Continuous Integration/Continuous Deployment (CI/CD), agile system development, and DevSecOps tools and processes
  • Experience using Active Directory/LDAP
  • Self-motivation, able to work well independently and within inter-disciplinary engineering teams 
  • Strong written and oral communication skills
  • Strong Documentation skills
  • Recommending and implementing engineering design changes required to adapt technical requirements
  • Support critical operations during standard and non-standard working hours
  • Work must be accomplished onsite 


  • Education:
    • Bachelor’s Degree and minimum 6 years of relevant experience or, 
    • Graduate Degree and minimum 4 years of relevant experience 
    • In lieu of a degree, minimum of 10 years of prior related experience.
  • DoD 8570.01-M IAT Level 2 certification
  • Active TS/SCI with CI poly 

Preferred Additional Skills:

  • Previous experience supporting DoD & IC Government customers
  • Experience in non-traditional & highly technical, classified environments
  • Experience providing clear and concise briefing ability of technical projects to non-technical audiences and customers
  • Experience with MBSE 
  • Demonstrated ability to work and grow in a dynamic, fast paced, team-oriented, matrix environment
  • Demonstrated self-starter - efficient in achieving goals and proactive in pursuing subsequent task
  • Demonstrated scripting experience (Bash/Shell, Python, Perl) to provide System Administration efficiencies
  • Demonstrated knowledge of database administration/troubleshooting (i.e. Oracle, MySql, Postgres)
  • Demonstrated experience performing root cause analysis of a Linux applications and services
  • Experience in using and creating LDAP for Windows and Linux IDM Familiarity with implementing and maintaining Security Technical Implementation Guidelines (STIG) in compliance with RMF security frameworks on Linux and Windows components
  • Experience implementing patching, scanning, remediating findings, auditing (IAVA Compliance), and integrating RMF principles into ground-up builds
  • Experience with Nessus installation/configuration and running
  • Working knowledge of Atlassian products such as JIRA, Confluence, Bitbucket
  • Working knowledge of certificate-based security (TLS, SSL, OCSP)
  • Working knowledge of networking elements, including TCP/IP protocols & ports, DNS, NAT, subnet masks, etc.

Please be aware many of our positions require the ability to obtain a security clearance. Security clearances may only be granted to U.S. citizens. In addition, applicants who accept a conditional offer of employment may be subject to government security investigation(s) and must meet eligibility requirements for access to classified information.

By submitting your résumé for this position, you understand and agree that L3Harris Technologies may share your résumé, as well as any other related personal information or documentation you provide, with its subsidiaries and affiliated companies for the purpose of considering you for other available positions.

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.

L3Harris Technologies is an E-Verify Employer. Please click here for the E-Verify Poster in English or Spanish. For information regarding your Right To Work, please click here for English or Spanish.

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