Specialist, System Administration

L3Harris Technologies; Waco (TX); On-site; USD 100,000 - 140,000; Full time

Job summary

L3Harris Technologies is seeking a highly skilled System Administrator to support Linux and Windows servers in a Department of Defense‑related environment in Waco, TX. The role emphasizes AD account management, policy updates, and reporting.

Responsibilities include security policy enforcement, system updates, backups, RMF compliance with eMASS or Xacta, monitoring logs, and travel up to 25%. Requires Security+ or DoD 8140 IAT II, PowerShell or Bash, and TS/SCI clearance.

Qualifications

• Bachelor’s Degree and 4+ years of related experience; graduate degree preferred.
• Strong Active Directory management and security policy experience.
• Security+ or DoD 8140 IAT Level II certification.
• Experience with PowerShell and/or Bash scripting.
• Experience with system monitoring and antivirus software.
• Familiarity with RMF processes and Continuous Monitoring.
• Active TS/SCI Clearance.

Responsibilities

• Administer, maintain, and support Linux and Windows servers.
• Manage user accounts, groups, and permissions in Active Directory.
• Enforce security policies for account management and access control.
• Perform updates, patches, and backups to maintain security.
• Write detailed technical and operational reports.
• Review and update IT policies to align with best practices and regs.
• Monitor virus definitions and system security logs for threats.
• Support RMF process using eMASS or Xacta for accreditation and continuous monitoring.
• Travel up to 25% of the time.

Skills

Active Directory

Security policies

PowerShell

Bash scripting

System monitoring

Antivirus software

RMF processes

TS/SCI Clearance

Education

Bachelor’s Degree

Graduate Degree

Tools

eMASS

Xacta

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

Specialist, Systems Administration

Job Code

41093

Job Location

Waco, TX; On‑site

Job Schedule

9/80 Regular

Job Description

We are seeking a highly skilled and detail‑oriented System Administrator with a strong background in both Linux and Windows environments. The ideal candidate will have experience with Active Directory account management, multitasking in a dynamic environment, and the ability to write clear and concise reports. The candidate will also be responsible for reviewing and updating policies, ensuring virus definitions are current, and understanding RMF processes using eMASS or Xacta.

Essential Functions

• Administer, maintain, and support Linux and Windows servers, ensuring optimal performance and uptime.
• Perform system updates, patches, and backups as needed to maintain system integrity and security.
• Manage user accounts, groups, and permissions within Active Directory.
• Implement, enforce, and monitor security policies for account management and access control.
• Perform account audits and ensure compliance with organizational security standards.
• Write detailed technical and operational reports for the reporting manager.
• Review and update IT policies to ensure they align with industry best practices and regulatory requirements.
• Regularly review and update virus definitions on all systems to ensure protection against the latest threats.
• Monitor system security logs and respond to any detected vulnerabilities or threats.
• Understand and support the Risk Management Framework (RMF) process for system accreditation.
• Utilize eMASS or Xacta for system categorization, risk assessment, and continuous monitoring activities.
• Ensure compliance with regulatory and organizational standards in the RMF process.
• Ability to travel up to 25% of the time.

Qualifications

• Bachelor’s Degree and minimum 4 years of prior relevant experience. Graduate Degree and a minimum of 2 years of prior related experience. In lieu of a degree, minimum of 8 years of prior related experience.
• Strong knowledge and experience with Active Directory account management and security policies.
• Security+ or any other DoD 8140 Approved certification for IAT Level II.
• Experience with PowerShell and/or Bash scripting.
• Experience with system monitoring tools and antivirus software.
• Familiarity with RMF processes for Continuous Monitoring.
• Active TS/SCI Clearance.

Preferred Additional Skills

• Strong written and verbal communication skills for report writing and collaboration with cross‑functional teams.
• Excellent multitasking and organizational skills.
• Ability to work independently and manage multiple priorities in a fast‑paced environment.

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.