Sr Specialist, Cyber Intelligence - Systems Administrator 1

We are seeking a Sr Specialist, Cyber Intelligence - Systems Administrator to support secure, mission-critical computing environments. This role is responsible for administering, maintaining, and securing information systems and infrastructure in compliance with cybersecurity and government security requirements. The ideal candidate will bring strong system administration experience, hands-on knowledge of cyber operations support, and familiarity with compliance frameworks such as DAAPM/DAAG and RMF.

This position requires an individual who can manage system performance, apply security controls, support accreditation activities, and work closely with cybersecurity, engineering, and program teams to ensure the confidentiality, integrity, and availability of critical systems.

Essential Functions:

• Administer, maintain, and support Windows and/or Linux-based systems in secure and controlled environments.
• Perform system configuration, patch management, account management, backups, recovery, and performance monitoring.
• Implement and maintain cybersecurity controls in accordance with organizational and government requirements.
• Support system hardening efforts using Security Technical Implementation Guides (STIGs), security baselines, and best practices.
• Assist with vulnerability management activities, including scanning, remediation, and mitigation tracking.
• Support Assessment and Authorization (A&A) efforts and maintain compliance documentation for accredited systems.
• Work within the Risk Management Framework (RMF) process to support security control implementation, assessment, and continuous monitoring.
• Provide support for security audits, inspections, and compliance reviews.
• Coordinate with Information System Security Managers (ISSMs), Information System Security Officers (ISSOs), engineers, and program stakeholders to resolve system and security issues.
• Maintain system documentation, standard operating procedures, and configuration management records.
• Troubleshoot hardware, software, network, and security-related issues in a timely manner.
• Support incident response and recovery activities as required.
• Ensure systems are operated and maintained in accordance with classified environment requirements.

• Bachelor’s degree in Cybersecurity, Information Technology, Computer Science, Information Systems, or a related field; or equivalent combination of education and relevant experience.
• Bachelor’s Degree and minimum 6 years of prior relevant experience in system administration, cybersecurity operations, or secure systems support. Graduate Degree and a minimum of 4 years of prior related experience. In lieu of a degree, minimum of 10 years of prior related experience.
• Active Secret security clearance required., * Hands-on experience administering Windows and/or Linux operating systems.
• Familiarity with DAAG and RMF.
• Experience applying security hardening practices, patching, and vulnerability remediation.
• Knowledge of system administration in secure or classified environments.
• Ability to support compliance documentation and security control implementation.
• Experience supporting Department of Defense (DoD) programs or classified systems.
• Familiarity with STIG implementation, ACAS, SCAP, HBSS, or similar security tools.
• Experience with virtualization technologies, such as VMware.
• Understanding of Active Directory, Group Policy, identity and access management, and endpoint security solutions.
• Knowledge of backup/recovery processes and disaster recovery planning.
• Relevant certifications such as Security+, CySA+, CASP+, Linux+, Microsoft, or similar.
• Experience working with cross-functional engineering and cybersecurity teams.

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., 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.