Network Engineer Security Salt Lake City, UT

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 the Trusted Disruptor in defense tech. 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: Network Engineer Job Code: 39818 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.    This role requires strong experience with enterprise networking technologies, secure infrastructure design, and troubleshooting within controlled classified environments. The ideal candidate will be comfortable working independently, collaborating across multidisciplinary teams, and supporting lifecycle upgrades, compliance initiatives, and operational sustainment activities.     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    Qualifications  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.    Preferred Additional Skills  Experience