Senior Specialist, Information Security Systems Engineer 1

L3Harris Technologies • Greenville, TX

7d

About The Position

L3Harris Technologies is seeking an Information Systems Security Engineer (ISSE) to join its Sensor Infrastructure team. The ideal candidate brings comprehensive knowledge of information security principles and practices, with expertise in vulnerability scanning, compliance frameworks, secure system design, and Authorization to Operate (ATO) documentation. The role supports identification and assessment of security weaknesses, operation and evaluation of security tools, compliance reviews, and communication of information assurance risks and recommendations.

Requirements

• Active US Top Secret/SCI security clearance.
• Bachelor’s degree and a minimum of 2 years of prior relevant experience, or a graduate degree and 0–2 years of prior related experience.
• In lieu of a degree, a minimum of 6 years of prior related experience.
• Active Security+ certification or comparable Department of Defense 8140 certification.

Nice To Haves

• Experience assessing security and privacy controls in embedded systems using NIST 800-53.
• Solid understanding of TCP/IP and routing protocols.
• Knowledge of LAN/WAN networking and security infrastructure, including firewalls, IDS/IPS, IPSec, and VPNs.
• Knowledge of computer/system security topics such as antivirus, authentication, authorization, access control, cryptography, SSO, business continuity planning, and application security.

Responsibilities

• Conduct vulnerability scans on networks, systems, and applications to identify security weaknesses, misconfigurations, and potential threats.
• Support implementation, testing, and basic operation of security tools such as firewalls, intrusion detection systems, endpoint protection platforms, and software deployment utilities.
• Assist with security assessments by reviewing systems and configurations for compliance with established security policies, standards, and best practices.
• Participate in evaluating security products and technologies, and provide input on tools or services that improve network and system security.
• Work with internal teams and stakeholders to communicate findings, document risks, and provide recommendations related to information assurance controls and security requirements.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior