Specialist, Information Security Systems Engineer (ISSE)

About the role

L3Harris is seeking a Senior Specialist, Information Security Systems Engineer (ISSE) to support the design, implementation, and sustainment of secure information systems across enterprise and program environments.

Responsibilities

• Prepare and manage Assessment and Authorization documentation using RMF and derivative processes (e.g., DOD 8510, JSIG, ICD-503, CNSSI 1253) to achieve security authorization of supported systems.
• Support the design, integration, and maintenance of secure system architectures for on-premises environments.
• Apply cybersecurity principles and security-by-design practices throughout the system development lifecycle.
• Analyze system requirements and derive security requirements, controls, and technical solutions.
• Perform security assessments, gap analyses, and risk evaluations for information systems and supporting infrastructure.
• Perform research required to identify vulnerability details and solutions to assist other cyber disciplines with their correction or mitigation.
• Support implementation and validation of security controls in alignment with applicable regulatory, contractual, and organizational requirements.
• Participate in Linux & Windows system hardening, secure configuration, patch management, and vulnerability remediation activities.
• Contribute to development of policies, standards, procedures, and technical documentation related to information security engineering.
• Support audits, inspections, and customer assessments by providing technical evidence and responses.
• Communicate technical risks, findings, and recommendations to both technical 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. In lieu of a degree, minimum of 10 years of prior related experience.
• Active clearance: TS/SCI w/CI Poly.
• Must have or be able to obtain and maintain IAT Level II minimum (Security+ CE, CCNA Security, or equivalent) within 3-months of start.

Preferred Additional Skills

• Familiarity with emerging technologies such as cloud computing, containerization, and microservices, and their security implications (e.g. Understanding of security control inheritance in cloud-based systems.)
• Familiarity with STIG/SRG compliance validation and automated compliance scanning tools.
• Experience with security tools such as IDS/IPS, vulnerability scanners, and endpoint protection solutions.
• Professional certifications such as Security+, CISSP, or similar.
• Familiarity with DevSecOps practices, CI/CD pipeline security, and infrastructure as code security principles.
• Experience in regulated environments such as defense, aerospace, government contracting, or critical infrastructure.

Pay

Compensation and benefits are competitive and commensurate with experience.

Schedule

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