Network Engineer SME (TS/SCI with Poly Required) with Security Clearance

Job Category: IT Infrastructure and Operations Requisition Number: NETWO002207 Posting Details *

• Posted: July 9, 2026
• Full-Time
• On-site
• Salary Range: $164,382.40 USD to

$274,518.40 USD Job Details Description GCI embodies excellence, integrity and professionalism. The employees supporting our customers deliver unique, high-value mission solutions while effectively leverage the technological expertise of our valued workforce to meet critical mission requirements in the areas of Data Analytics and Software Development, Engineering, Targeting and Analysis, Operations, Training, and Cyber Operations. We maximize opportunities for success by building and maintaining trusted and reliable partnerships with our customers and industry. At GCI, we solve the hard problems. As an Expert Network Engineer, a typical day will include the following duties: KEY RESPONSIBILITIES

• Designs and plans network communications to include on-prem and cloud-based systems
• Provides specifications and detailed schematics for network architecture
• Plans implementation of enhancements and security upgrades to the network
• Conducts hands-on setup, configuration, testing, and troubleshooting of on-site network infrastructure
• Conducts testing of network infrastructure using industry practices
• Monitors network hardware and virtual (cloud) device operations to ensure properly functioning networks and capabilities
• Advises network users of hardware needs, configurations, and limitations
• Provides troubleshooting assistance and guidance to other team members as well as end users of the network(s)
• Provides detailed recommendations for hardware and software selection, implementation techniques, and tools
• Provides technical expertise in all areas of network and computer hardware and software interconnection and interfacing, such as routers, switches, firewalls, bridges, gateways, etc.
• Evaluates and reports on changing or end of life technologies to ensure capabilities of the network remain up to date and secure REQUIRED QUALIFICATIONS
• Experience in IPSec site-to-site VPN • Experience in Remote access VPN
• Experience configuring, designing, maintaining, and troubleshooting LAN/WAN devices
• Thorough understanding of network routing concepts (EIGRP, OSPF, BGP, IP MPLS)
• Basic understanding of QoS concepts
• Experience with network monitoring technologies
• Expertise in deploying Cisco, or Juniper firewall Manager servers
• Experience engineering and deploying cloud-based and on-prem network firewall solutions
• Experience designing, engineering, and deploying controlled interfaces
• Ability to take customer requirements or problems and convert them into technical solutions
• Ability to partner with systems administrators to solve complex problems
• Complex problem management research and issue resolution DESIRED QUALIFICATIONS
• Experience configuring, designing, and troubleshooting QoS in LAN or WAN devices
• Experience design, engineering, and deploying Multi-Factor Authentication solution *A candidate must be a US Citizen and requires an active/current TS/SCI with Polygraph clearance.

Equal Opportunity Employer / Individuals with Disabilities / Protected Veterans Qualifications Skills Behaviors : Motivations : Education Preferred BA/BS or better. Experience Required 10 years: Demonstrated work related experience. Licenses & Certifications Equal Opportunity Employer This employer is required to notify all applicants of their rights pursuant to federal employment laws. For further information, please review the Know Your Rights notice from the Department of Labor. Click here to learn more about us!