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# Senior Specialist, Information Security Systems Engineer 1

- **Company:** L3Harris Technologies, Inc.
- **Location:** Greenville, TX, United States
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Antivirus Softwares, Systems Engineering, User Authentication, Cyber Security, Internet Protocol Security (IP SEC), Intrusion Detection Systems, Virtual Private Networks (VPN), Routing, Single Sign-On, Software Deployment, TCP/IP, Privacy Controls, In-Plane Switching (IPS), Software Security, Firewalls (Computer Science), Vulnerability Analysis
- **Published:** November 5, 2026
- **Apply:** https://www.dice.com/job-detail/272f994f-f2d6-4ce5-95d4-36bc6b700bba

## About the Role

* Active US Top Secret/SCI security clearance.
 * Bachelor's Degree and minimum 2 years of prior relevant experience.
 * Graduate Degree and a minimum of 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.

Preferred Additional Skills

 * 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 (Firewalls, IDS/IPS, IPSec, VPNs).
 * Knowledge of Computer/System Security topics such as Antivirus, Authentication, Authorization, Access Control, Cryptography, SSO, Business Continuity Planning and Application Security.

## Description

L3Harris Technologies is seeking an Information Systems Security Engineer (ISSE) to join our Sensor Infrastructure team. The ideal candidate is a go-getter with comprehensive knowledge of information security principles and practices, bringing deep expertise in vulnerability scanning, compliance frameworks, secure system design and Authorization to Operate (ATO) documentation., * Conduct vulnerability scans on networks, systems, and applications to identify security weaknesses, misconfigurations, and potential threats.

 * Support the 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., 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.