Network Security Engineer - ClearanceJobs : Job Details

Network Security Engineer

ClearanceJobs

Job Location : South Burlington,VT, USA

Posted on : 2025-10-01T14:37:37Z

Job Description :
Network Security Engineer

Mantech seeks a motivated, career and customer-oriented Network Security Engineer in South Burlington, VT or Camp Springs, MD. Responsibilities include but are not limited to:

  • Support the following technologies with expert knowledge: BGP, DMVPN, EIGRP, MPLS, VRF, QoS, PBR, VSS, HSRP, STP, Cisco Meraki stack, WAN Optimization technologies, and Cisco Nexus.
  • Transport-layer engineers to validate a customized, metered approach to modernize and enhance functionalities such as IPv6, SIP, and H.323, as well as other industry best practices.
  • Possess the knowledge and technical understanding to maintain and improve existing protocols such as QoS, Metro-Ethernet, and SONET technologies for CONUS and OCONUS locations. Experience with initiatives such as the Dynamic Multipoint VPN (DMVPN), Layer 2 Multiprotocol Label Switching (MPLS), cloud hosted Equinix sites.
  • Work with vendors such as Cisco, Infoblox, and Palo Alto. Support high availability LAN/WAN planning. Automate advanced routing capabilities, WAN path control remediation solutions, and customized price-to-performance cost-savings data.
  • Investigate the USCIS WAN and develop new solutions, specifically taking advantage of new technologies that embrace software defined networks, to include policy-based routing.
  • Design and engineer IPv6 implementation and support strategy. Strategy shall include migration of all devices, sites, and applications. Design and Architect a new Private IP WAN solution.
  • Establish an efficient and effective repeatable methodology for architecture and engineering solutions from concept to delivery of operations. Responsible for architecting, engineering, and maintaining cloud direct connects and third-party interconnects where needed. Provide recommendations for new products and technology for supporting all layers of the IT infrastructure architecture.

Minimum Qualifications:

  • 5+ years of experience.
  • Experience designing, engineering and designing solutions with a security mindset
  • Experience with major cloud providers AWS, Google or Azure.
  • Proven experience with managing and using Dev Ops concepts.

Preferred Qualifications:

  • Bachelor's degree in computer science, or related field.
  • One or more relevant industry certifications such as CCIE/CCNP.
  • Familiar with tools including: ServiceNow, GitHub, Jira, Confluence.
  • Experience with ITIL, DevSecOps and Agile concepts.
  • Experience supporting Government contracts.

Clearance Requirements:

  • Must be a U.S. Citizen and be able to obtain and maintain a DHS Suitability Clearance prior to starting this position.

Physical Requirements:

  • Office work, typically sedentary with some movement around the office.
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