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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Network Engineer - **Company:** Mantech International Corporation - **Location:** Chantilly, VA, United States - **Contract:** Permanent contract - **Skills:** Multitier Architecture, Systems Engineering, Border Gateway Protocol, Network Analysis, Data Centers, Virtual Private Networks (VPN), Junos, Network Architecture, Network Diagrams, Routing, Cisco Nexus Switches, Open Shortest Path First (OSPF), Ansible, Virtual Local Area Networks, Identity Services Engine, Bicsi, Juniper, SolarWinds (Software), Cisco, Vmware - **Published:** September 27, 2026 - **Apply:** https://www.dice.com/job-detail/f1d0d5cd-50d8-4497-9515-2f3c25beabcc ## About the Role * A High School Diploma or GED, accompanied by over 7 years of progressively responsible experience in Network Engineering, Network Analysis, or a related technical field. * Cisco Certified Network Associate (CCNA) certification or an equivalent routing/switching technical certification, such as Juniper Networks Certified Associate Junos (JNCIA-Junos). * DoD 8570 IAT Level II Certification, for example, Security+. * Must obtain DoD 8570.1 / DoD 8140.01 (IAT III Level) certification within 6 months of employment, such as SecurityX., * A Bachelor's degree in an engineering discipline. * Experience with SolarWinds and a strong understanding of Microsoft Windows Systems, HP SANs, and VMware products. * Advanced skills in managing VPNs, GRE tunnels, routing protocols (BGP E/I, OSPF), VLANs, VRFs, and configuring KGs. * Solid knowledge of Cisco ACI, best practices for data center fabric, Ansible, and Desired State Configuration (DSC). * Practical understanding of BICSI standards, fiber and Cat 5 cabling termination, along with familiarity with NSTISSAM TEMPEST/2-95 and CNSSAM TEMPEST/01-13 guidelines. Clearance Requirements: * A current and active TS/SCI clearance is mandatory. Physical Requirements: * The individual in this role must be capable of remaining stationary for 50% of the time. They may occasionally need to move around the office to access file cabinets, office equipment, or to communicate with colleagues, management, and clients through email, phone, or virtual platforms, which may include delivering presentations. ## Description Our organization is in search of a dedicated, career-focused Network Engineer to become part of our team in Chantilly, VA. This role requires onsite presence., * Provide Tier II and Tier III network engineering support, focusing on the design of sophisticated WAN, LAN, and data center solutions. * Utilize tools such as SolarWinds, Cisco DNAC, and Cisco ISE to monitor and configure networks, ensuring a comprehensive and operational infrastructure while analyzing intricate network requirements. * Develop, update, and interpret detailed technical network diagrams, routing topology schemas, and solid hardware configuration baselines. * Collaborate with extensive internal teams, stakeholders, and sponsor authorities to advance infrastructure initiatives and effectively manage systems engineering processes. * Engage in all stages of the ITIL Service Lifecycle, including the submission of Change Requests and the upkeep of security event monitoring policies. * Assess existing network architectures, catalog complex routing paths, and propose enhancements to boost performance and throughput. * Conduct comprehensive functional analysis, specify requirements, estimate costs, and release engineering packages for customer production IT environments. ## 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) - [What makes Cybersecurity different for critical infrastructure?](https://www.wearedevelopers.com/videos/571-what-makes-cybersecurity-different-for-critical-infrastructure) - [Your Infrastructure Is Not a Playground: AI Agents for Infra Done Right](https://www.wearedevelopers.com/videos/2084-your-infrastructure-is-not-a-playground-ai-agents-for-infra-done-right) - [Computer Vision from the Edge to the Cloud done easy](https://www.wearedevelopers.com/videos/263-computer-vision-from-the-edge-to-the-cloud-done-easy) - [Small, Secure, Interconnected: The next Internet Protocol](https://www.wearedevelopers.com/videos/100062-small-secure-interconnected-the-next-internet-protocol) ## Related Articles - [How We Built a Worry-Free System That Runs for 10+ Years – And What We’d Do Again](https://www.wearedevelopers.com/magazine/751-how-we-built-a-worry-free-system-that-runs-for-10-years-and-what-we-d-do-again) - [Best Paying Jobs in Technology](https://www.wearedevelopers.com/magazine/256-best-paying-jobs-in-technology) - [From developer to manager – what does it take to become an engineering manager?](https://www.wearedevelopers.com/magazine/42-from-developer-to-manager-what-does-it-take-to-become-an-engineering-manager) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [The Most Popular IT Jobs on the Market](https://www.wearedevelopers.com/magazine/376-the-most-popular-it-jobs-on-the-market) - [A Guide to Green Tech and Green IT Careers](https://www.wearedevelopers.com/magazine/374-a-guide-to-green-tech-and-green-it-careers)