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Operational Support Services System Administrator 4

Melbourne, Florida

Job ID AS20211709-69571
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Our Business and Operations team has an unwavering focus on our commitment to excellence in everything we do. They’re the backbone of our ability to deliver mission solutions with speed, innovation and flawless execution.

  • Full Time
  • Level: Experienced
  • Location: On Site
  • Glassdoor Reviews and Company Rating

Success Profile

What makes a successful Business and Operations team member at L3Harris?
Check out the traits we’re looking for and see if you have the right mix.

  • Collaborative
  • Detail-Oriented
  • Influential
  • Organized
  • Strategic
  • Technical


My favorite part of working for L3Harris is knowing that the parts that I procure go into products that help save lives.

Lizzie, Procurement Associate, Rochester, NY

L3Harris Work Perks

  • Health

    • Medical with a High Deductible and traditional PPO plan options, as well as, vision and a full array of supplemental health benefits
    • A doctors' service to help with referrals and second opinions for you, your family, and parents

  • Family

    • 4 weeks of paid parental leave for moms and dads
    • Fertility treatment
    • Subsidized backup childcare and eldercare
    • Adoption assistance - $5,000 per adoption/$15,000 per employee
    • Pet insurance

  • Well-Being

    • No cap to your PTO time (for exempt employees)
    • Dress for your day - wear what works for you at work
    • Legal plan for you, your family, and parents
    • Discount platform

Job Description

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 air, land, sea, space and cyber domains. L3Harris has approximately $18 billion in annual revenue and 48,000 employees, with customers in more than 100 countries.


Job Title: Operational Support Services System Administrator 4

Job ID: AS20211709-69571

Location: Melbourne, Florida

Job Description:

L3Harris is searching for a Senior Systems Administrator to join the Mission Networks Voice Switch program team providing modern, secure, reliable and resilient telecommunications networks and information management systems to the federal government. The ideal candidate will be selected to join our team developing critical communication capabilities for air traffic control, air-to-ground data communication, secure access to situational awareness data and secure information sharing to state agencies. Responsibilities include integration of software into production environment and maintaining software operations through hardware refresh/updates. Position also includes the administration of Windows & Linux systems and managing virtual environments, including their baseline configuration.

We are looking for an Engineer to creatively solve problems and who is willing to resolve issues that may arise from software or technical stack updates. Responsibilities for this position include support to software engineering during the development of a new Operational Support System (OSS) by provisioning and managing the virtual environments (VM) and installing and configuring the Linux based CentOS Operating System. The position also requires monitoring and maintaining the system hardware performance, and ensuring that system hardware, software, and related procedures adhere to the system’s design and architecture. This individual will manage system access user accounts and develop the procedures for system configuration to support production builds. This individual will also assist program teams with technical analysis and support the testing and roll-out of new patches. The position includes participation in the program’s focus on smoothing the transition from system development to operational readiness within the program’s lifecycle.

Other specific duties and responsibilities include:

  • Performs software installations and upgrades to CentOS and Windows operating systems and layered software packages and maintains them in accordance with established policies, procedures and service level agreements.
  • Engages directly with customers to diagnose, troubleshoot and resolve system issues, ensuring Service Level Agreement (SLA) response timelines are met.
  • Administers assigned Enterprise systems such as enterprise data storage administration (EMC), enterprise server virtualization (VMWare) to ensure systems are functioning properly.
  • Troubleshoots hardware, software, and wide area network related problems associated with the assigned Enterprise system(s).
  • Coordinates with server and operating system vendors to resolve issues, arrange service, and obtain support.
  • Performing system administration and configuration tasks for Windows (including legacy version) and Linux systems
  • Experience creating and managing virtualized environments, including VMware Workstation and VirtualBox
  • Ability to obtain and maintain clearance.


  • Bachelor’s degree in Computer Engineering, Computer Science, IT Security or related field, and minimum 6 years related experience; or a Master’s degree in Computer Engineering, Computer Science, IT Security or related field, and minimum 4 years related experience.
  • Minimum 6 years of experience supporting software and deploying solutions to production environment.
  • 5 to 7 years of experience in the network systems administration field performing the specification, selection, evaluation, testing, deployment and operation of Linux, CentOS and Windows Operating Systems (OS) and servers.

Preferred Additional Skills:

  • Problem solver, willingness to attempt solutions until issues are resolved
  • Experience debugging C/C++ code to perform root cause analysis and resolving issues with non-software solutions
  • Willingness to find solutions with restrictions on software changes and limited access to external COTS support
  • Ability to prepare and produce releases of software components.
  • Experience with source control and issue tracking tools & processes, including Git & Jira
  • Experience with shell scripting or other scripting languages for automation purposes
  • Experience with Win2k through Windows Server 2019
  • Project, Build, Package Management Experience.
  • Excellent communication and teamwork skills

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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