Senior Specialist, Systems Administrator

L3Harris Technologies; Palm Bay (FL); On-site; USD 110,000 - 150,000; Full time

Job summary

L3Harris Technologies in Palm Bay, FL is seeking a Senior Specialist, Systems Administrator to maintain secure Windows systems and network infrastructure for classified environments. The role combines system and network administration with vulnerability management, RMF compliance, and automation to improve operations.

The ideal candidate has a Bachelor's degree with extensive experience, or a graduate degree with related experience, plus an active TS/SCI clearance with full-scope polygraph.

Qualifications

• Bachelor’s Degree with 6+ years of relevant experience, or graduate degree with 4+ years.
• Graduate Degree with 4+ years of related experience; or 10+ years of related experience in lieu of a degree.
• Active TS/SCI clearance with full-scope polygraph.

Responsibilities

• Administer and maintain Microsoft Windows servers, client systems, backup systems, network infrastructure, and databases.
• Provide end user desktop support for systems and applications at the local site and across the classified WAN.
• Build, configure, and maintain physical and virtual Windows servers in support of program requirements.
• Perform regular system updates, patching, and hardening activities to reduce vulnerabilities and ensure compliance with applicable standards.
• Develop and maintain scripts and automation tools to streamline deployment and improve operational efficiency.
• Collaborate with engineering teams to understand program requirements and deliver effective technical solutions.
• Communicate complex technical issues, risks, and recommendations clearly to management and non-technical stakeholders.

Skills

Windows OS

Linux OS

Networking protocols

PowerShell

Security best practices

Education

Bachelor’s Degree + 6+ years

Graduate Degree + 4+ years or 10+ years experience in lieu of a degree

Tools

PowerShell

VMware

Ansible

Commvault

RHEL 8/9

CentOS

Ubuntu

Job description

L3Harris is dedicated to recruiting and developing 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 is the Trusted Disruptor in defense tech. With customers’ mission-critical needs always in mind, our employees deliver end-to-end technology solutions connecting the space, air, land, sea and cyber domains in the interest of national security.

Job Title: Senior Specialist, Systems Administrator

Job Code: 43405

Job Location: Palm Bay, FL

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

Job Description

We are seeking a dedicated System/Network Administrator to join our IT team. The ideal candidate will be responsible for maintaining the integrity, availability, and security of classified Windows systems and network infrastructure. This role involves a blend of system administration, network management, project coordination, vulnerability management, system hardening, and desktop/software support.

Essential Functions

• Administer and maintain Microsoft Windows servers, client systems, backup systems, network infrastructure, and databases.
• Provide end user desktop support for systems and applications at the local site and across the classified WAN.
• Build, configure, and maintain physical and virtual Windows servers in support of program requirements.
• Perform regular system updates, patching, and hardening activities to reduce vulnerabilities and ensure compliance with applicable standards.
• Develop and maintain scripts and automation tools to streamline deployment and improve operational efficiency.
• Collaborate with engineering teams to understand program requirements and deliver effective technical solutions.
• Communicate complex technical issues, risks, and recommendations clearly to management and non-technical stakeholders.

Qualifications

• Bachelor’s Degree and minimum 6 years of prior relevant experience. Graduate Degree and a minimum of 4 years of prior related experience; or, in lieu of a degree, minimum of 10 years of prior related experience.
• Active TS/SCI clearance with full-scope polygraph.

Preferred Additional Skills

• 6 years of experience as a System/Network Administrator supporting an enterprise-level domain environment.
• Strong knowledge of Windows and/or Linux operating systems, networking protocols, PowerShell, and security best practices.
• Experience supporting Linux systems, including Red Hat Enterprise Linux (RHEL) 8/9, CentOS, and Ubuntu.
• Experience with Commvault or similar enterprise level backup system.
• Experience with VMware or similar virtualization platforms.
• Experience with Ansible.
• Experience with Commvault or similar backup solutions.
• Experience managing systems in compliance with the NIST Risk Management Framework (RMF).

L3Harris Technologies is proud to be an 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.

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 resume for this position, you understand and agree that L3Harris Technologies may share your resume, 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 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.