Job Title: Sr Specialist, Cyber Intelligence - Network Engineer

Job Code: 45693

Job Location: Salt Lake City, UT

Shift: 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)

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 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. The successful candidate will serve as a mid-level technical contributor responsible for ensuring secure, reliable, and compliant network operations supporting mission-critical programs.

Essential Functions

• 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.

Required 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.
• Current CCNP certification required.
• Active Top Secret security clearance required, or ability to obtain and maintain one as required by the program.

Preferred Qualifications

• 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.
• Experience supporting DoD or other federal classified network environments.
• Familiarity with DISA STIGs, RMF, NIST 800-53, and related cybersecurity/compliance frameworks.
• 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.