Network Engineer

About the role

L3Harris is seeking a Network Engineer to support the design, implementation, maintenance, and security of classified network environments up to Top Secret in Salt Lake City, Utah.

Responsibilities

• Design, implement, maintain, and troubleshoot classified network infrastructure supporting operations up to the Top Secret level.
• Engineer secure network solutions including routing, switching, firewall, and VPN technologies.
• Monitor and optimize network performance, availability, and capacity across mission-critical environments.
• Investigate and resolve complex network issues, outages, and security-related events.
• Support classified network compliance activities including system hardening, audit readiness, and accreditation efforts.
• Apply cybersecurity best practices to network architecture, segmentation, access controls, and device configuration.
• Create and maintain network diagrams, implementation plans, technical documentation, and standard operating procedures.
• Execute network changes in accordance with established configuration management and change control processes.
• Partner with cybersecurity, systems administration, and program teams to maintain secure and compliant infrastructure.
• Support technology refresh, network modernization, and lifecycle replacement efforts.
• Provide technical leadership and mentorship to less experienced team members as needed.
• Participate in on-call rotation, scheduled maintenance windows, and after-hours operational support as required.

Requirements

• Bachelor’s degree in Information Technology, Computer Science, Engineering, or related field and a minimum of 4 years of prior relevant experience, or
• Graduate degree and a minimum of 2 years of prior related experience, or in lieu of a degree, a minimum of 8 years of prior related experience.
• Active Secret security clearance required, or ability to obtain and maintain one as required by the program.

Qualifications

• Strong experience with enterprise networking technologies, secure infrastructure design, and troubleshooting within controlled classified environments.
• Experience supporting DoD or other federal classified network environments.
• Familiarity with DISA STIGs, RMF, NIST 800-53, and related cybersecurity/compliance frameworks.
• CCNA certification.
• Experience with Cisco, Palo Alto, Juniper, or equivalent enterprise technologies.
• Additional certifications such as Security+, CCIE, CISSP or firewall/security vendor certifications.
• Experience with enclave architecture, cross-domain solutions, or air-gapped network environments.
• Experience supporting network modernization, infrastructure refresh, or mission systems integration efforts.
• Prior experience serving as a technical lead, senior engineer, or subject matter expert.
• Experience supporting enterprise network infrastructure in secure or classified environments.
• Experience with routers, switches, firewalls, VPNs, and network monitoring/management tools.
• Strong knowledge of TCP/IP, OSPF, BGP, VLANs, ACLs, STP, and QoS.
• Experience with secure network design, implementation, and sustainment.
• Ability to troubleshoot and resolve advanced network performance and connectivity issues.
• Experience with technical documentation, network diagrams, and formal change management processes.
• Strong communication and collaboration skills.

Skills

• Enterprise networking technologies
• Secure infrastructure design
• Network troubleshooting
• Classified network compliance
• Security best practices
• Network diagram creation
• Change management
• Technical leadership
• Collaboration

Benefits

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.

Pay

Commensurate with experience.

Schedule

1st Shift (Monday - Friday), 9/80 (employee's work 9 out of every 14 days - totaling 80 hours worked - and have every other Friday off)