Advanced Network Engineer

Benefits

• 401(k)
• Dental insurance
• Health insurance
• Paid time off
• Training & development
• Vision insurance
  
  

Location: Washington, DC

Clearance: Public Trust

Employment Type: Full-Time

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.