Advanced Network Engineer
4 days ago
Washington
Job DescriptionBenefits: • 401(k), • Dental insurance, • Health insurance, • Paid time off, • Training & development Company Description 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 dont just check boxes. We solve real-world problems that matter. Were 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 The Advanced Network Engineer provides senior-level engineering, architecture, and advanced troubleshooting support for complex enterprise network environments supporting government operations. This role ensures secure, resilient, and high-performance connectivity across mission-critical systems. Key Responsibilities • Lead the design, implementation, documentation, and optimization of enterprise LAN, WAN, wireless, and hybrid network infrastructures, including all switching, routing, firewall, and IP-addressable components., • Document all network devices, cabling interconnects, configurations, and architecture diagrams to support full visibility and lifecycle management., • Provide advanced troubleshooting and root-cause analysis for complex network incidents, outages, performance degradation, and multi-system connectivity issues., • Install, configure, operate, and troubleshoot switches, routers, firewalls, wireless systems, VPN solutions, and ancillary support systems., • Review, analyze, and recommend improvements to network processes, procedures, and standards; implement approved enhancements and ensure adherence to industry best practices., • Develop and implement quality assurance (QA) and quality control (QC) plans for ongoing network maintenance, monitoring, and performance validation., • Review, update, and execute network disaster recovery plans, ensuring resiliency and alignment with enterprise continuity requirements., • Research, design, and implement network security solutions, including firewall management, secure architectures, segmentation, and vulnerability mitigation., • Monitor, analyze, performance-tune, and proactively optimize network availability and utilization using enterprise monitoring tools., • Administer, manage, and harden firewall security appliances, VPN solutions, and secure routing/switching configurations., • Track, recognize, report on, and mitigate network security vulnerabilities; support audits with required documentation and data., • Lead engineering projects as an Engineering Lead or Project Manager, delivering secure and resilient network systems, upgrades, and modernization initiatives., • Prepare and maintain conceptual designs, architecture frameworks, schedules, and cost estimates for new or modified systems; conduct formal design reviews., • Research, compile, and analyze network designs and architectural patterns to assist in diagnosing and resolving complex network engineering issues., • Apply established network engineering standards, policies, principles, and documentation practices to ensure consistency and compliance., • Configure, maintain, and support multicast technologies, VLANs, subnets, and advanced routing protocols across the enterprise., • Support incident, problem, and change management processes to meet contract SLAs and ensure controlled implementation of network changes., • Collaborate with cybersecurity, systems engineering, and operations teams to enforce secure network configurations, segmentation models, and compliance requirements., • Participate in operational readiness reviews, risk assessments, capacity planning, and infrastructure modernization efforts., • Assist with network lifecycle management, vendor coordination, and procurement of hardware, software, and licensing.Required Qualifications, • Bachelors degree in IT, engineering, or a related field or equivalent experience., • 8+ years of progressive network engineering experience in complex or large-scale enterprise environments., • Extensive experience with networking equipment, software, programming, and design, including routers, switches, firewalls, wireless systems, VPNs, and multicast., • Strong expertise with Cisco networking, VLANs, SD-WAN, QoS, and routing protocols (BGP, OSPF, EIGRP)., • Experience administering and managing firewall appliances, secure network architectures, and vulnerability remediation efforts., • Experience developing, reviewing, and implementing network processes, QA/QC plans, standards, and disaster recovery documentation., • Demonstrated ability to conduct design reviews and produce conceptual designs, schedules, and cost estimatesfor network modernization or engineering efforts., • Experience supporting secure or regulated government environments., • Relevant certifications such as CCNP, CCIE, JNCIP, or similar preferred., • Ability to obtain and maintain the required government clearance. Flexible work from home options available.