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Specialist Cyber Intelligence / Network Administrator

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 Technologies is the Trusted Disruptor in the defense industry. 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 Cyber Intelligence / Network Administrator

Job Code : 24559

Job Location : Plano, TX

Job Description : We are seeking a motivated and security-conscious Network Administrator to assist in maintaining, configuring, and troubleshooting network infrastructure with a focus on Cisco hardware and VMware virtualized environments. The ideal candidate will have experience working in highly secure classified areas and will be responsible for supporting network infrastructure in compliance with strict security standards. This role requires a valid security clearance, understanding of network security protocols, and hardening of network equipment.

Essential Functions :

• Configure, manage, and maintain Cisco switches and routers within a secure closed area network.
• Implement and maintain basic routing protocols (e.g., static, OSPF) as well as switching technologies : VLANs, virtual interfaces, Trunking and EtherChannel.
• Assist in the setup, configuration, and troubleshooting of network devices to ensure optimal performance and security.
• Monitor network performance and troubleshoot issues to maintain system uptime in a secure environment.
• Support network upgrades and configurations, ensuring compliance with security protocols and government regulations.
• Ensure all network activities comply with established security policies and guidelines (e.g., NIST, JSIG, and other relevant frameworks).
• Assist in the implementation of security controls to protect the network infrastructure, i.e. port security, RADIUS / LDAP, logging, etc.
• Collaborate with the security team to apply patches, upgrades, and security fixes to network devices.
• Provide tier 1 and tier 2 technical support for network-related issues.
• Respond promptly to service requests and network outages, ensuring minimal disruption to operations.
• Maintain accurate and up-to-date documentation of network configurations, changes, and security controls.
• Participate in ongoing training and professional development opportunities related to network management, Cisco technologies, and government compliance standards.

Qualifications :

Preferred Additional Skills :

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.