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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Network Engineer - TS/SCI w/FULL SCOPE POLY - **Company:** YELLOWFIN TECHNOLOGY CORP - **Location:** Anne Arundel County, MD, United States - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Systems Engineering, Border Gateway Protocol, Enhanced Interior Gateway Routing Protocol, Python (Programming Language), Network Security, Network Troubleshooting, Network Architecture, Network Diagrams, Network Installation Services, Network Monitoring, Cisco Nexus Switches, Open Shortest Path First (OSPF), Ansible, Software Systems, Systems Integration, Wireshark, Wide Area Networks, Computer Networking Systems, Information Technology, SolarWinds (Software), Routing & Switching, Firepower, Open Network Automation Platform, Cisco Switches, Cisco - **Published:** July 28, 2026 - **Apply:** https://www.clearancejobs.com/jobs/9061059/network-engineer-tssci-wfull-scope-poly ## About the Role * Bachelor's degree in network engineering, Computer Science, Information Technology, or related discipline (experience substitution allowed per contract) * 3+ years of network engineering experience * Cisco Certified Network Professional (CCNP) required Network Engineer 2 (NE2) * Bachelor's degree with 6+ years of experience or Master's degree with 4+ years * Cisco certification required * Experience supporting enterprise network architecture and infrastructure Network Engineer 3 (NE3) * Master's degree with 10+ years, Bachelor's degree with 12+ years, or equivalent experience * Cisco Certification required * IAT Level III Certification required * Experience leading enterprise network engineering projects Preferred Skills * Cisco Routing & Switching * Enterprise LAN/WAN * BGP, OSPF, EIGRP * Cisco Catalyst & Nexus * Cisco Firepower / ASA * Network Automation (Python, Ansible) * SD-WAN * Network Monitoring & Performance Analysis * SolarWinds * Wireshark * Network Architecture * Network Security ## Description Yellowfin Technology Corp. is seeking experienced Network Engineers to support critical national security missions within the IC. We are building a pipeline of highly skilled professionals who are passionate about designing, implementing, securing, and maintaining enterprise network infrastructure supporting mission-critical operations. Whether you are an early-career engineer or a senior technical leader, we are interested in professionals with expertise in Cisco networking technologies, enterprise infrastructure, network security, and large-scale systems integration. Responsibilities Depending on experience level, responsibilities may include: * Design, implement, configure, and maintain enterprise network infrastructure. * Monitor network performance and availability while identifying opportunities for optimization. * Perform routing, switching, and network troubleshooting across complex environments. * Support network architecture, engineering, and modernization initiatives. * Develop and maintain network diagrams, documentation, and accreditation artifacts. * Integrate hardware and software solutions supporting DoW and IC environments. * Support Cyber Network Defense (CND) operations and network security initiatives. * Perform system upgrades, migrations, patching, and lifecycle refresh activities. * Utilize network monitoring, diagnostic, and performance analysis tools. * Support testing, validation, and quality assurance of network implementations. * Collaborate with systems engineers, cybersecurity professionals, software developers, and mission stakeholders. * Lead large-scale network installation and integration efforts (senior-level positions). ## Related Videos - [How Cisco embraced a DevOps culture within its network engineering team](https://www.wearedevelopers.com/videos/99-how-cisco-embraced-a-devops-culture-within-its-network-engineering-team) - [Dev & Test in the Cloud? 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