Network Engineer

The Network Engineer provides mid-level support for enterprise network operations, infrastructure maintenance, and troubleshooting activities critical to government users and systems. Key Responsibilities Document all network infrastructure components, including switching and routing equipment, IP-addressable devices, cabling interconnects, and associated configurations. Configure, install, operate, maintain, and troubleshoot routers, switches, firewalls, wireless systems, and related network hardware in support of day-to-day operations. Review and analyze current network processes, procedures, and configurations; develop, recommend, and implement approved network process improvements. Develop and implement quality assurance and quality control plans for network maintenance and reliability. Review, analyze, update, and implement network disaster recovery plans to ensure resiliency. Research, design, and implement network security solutions, including vulnerability mitigation, firewall administration, and secure routing/switching architectures. Monitor, review, analyze, and performance-tune the network using enterprise monitoring tools, recommending and implementing optimizations to ensure peak performance. Recognize, track, report on, and mitigate network security vulnerabilities, providing data for audits and compliance activities. Apply standards, policies, and best practices in network engineering, documentation, and change management. Utilize expertise in network protocols, subnets, VLANs, firewalls, VPNs, and multicast technologies to configure and maintain secure and resilient network operations. Conduct design reviews and prepare conceptual designs, schedules, and cost estimates for new or modified network systems. Lead projects as an Engineering Lead or Project Manager to support development of secure, resilient network systems and enhancements. Generate, maintain, and update network documentation, diagrams, and standard operating procedures. Support incident, problem, and change management processes to meet contract SLAs and operational requirements. Collaborate with senior network engineers, security teams, and system administrators to plan and implement network improvements, upgrades, and lifecycle management activities. Assist with vendor coordination and hardware/software procurement in support of network operations and modernization efforts.

Bachelor’s degree or equivalent experience. 3-5 years of experience in network operations, network engineering, or network administration. Extensive experience with networking equipment, software, programming, and design, including switches, routers, firewalls, VPNs, wireless systems, and multicast technologies. Proficiency with Cisco networking technologies, standard network protocols, VLANs, subnets, firewall administration, and VPN solutions. Experience implementing network changes, patches, upgrades, and process improvements in secure or regulated IT environments. Demonstrated ability to analyze, troubleshoot, and resolve complex network infrastructure issues, including performance tuning and security vulnerability remediation. Experience contributing to or preparing network documentation, design artifacts, disaster recovery plans, and quality assurance processes. Certifications such as CCNA or Network+ preferred. Ability to obtain and maintain the required government clearance. Flexible work from home options available.

Celestial Innovations Group (CIG) is a fast-moving, mission driven technology firm working at the intersection of innovation, national security, and digital transformation. We support forward-thinking government agencies with cutting edge capabilities in cybersecurity, cloud, AI/ML, and IT modernization. At CIG, we don’t just check boxes. We solve real-world problems that matter. We’re building a culture where smart, curious, and driven people thrive. This is a place where your voice matters, your work has impact, and your growth is part of the mission. If you’re looking for a team that values trust, clarity, and the power of innovation, this is where you want to be. Overview