• Location: Chantilly, Virginia
  • Type: Contract
  • Job #3067

Title: Senior Network Engineer
Location: Chantilly, VA
*Clearance: *Active TS/SCI w/ Polygraph needed to apply *
Company Overview:
Cornerstone Defense is the Employer of Choice within the Intelligence, Defense, and Space communities of the U.S. Government.  Realizing early on that our most prized assets are our employees, we continually focus our attention on improving the overall work/life experience they have supporting the mission.  Our Team is pushed every day to use their industry leading knowledge to provide end-to-end solutions to combat our nation’s toughest and most secure problems.  If you are looking for a place to not only be professionally challenged, but encouraged and supported by a company that cares, don’t look any further than Cornerstone Defense.

Tasks can include:

  • Participate in the development of new network designs, assess network management architecture, document the architecture, develop test plans, and conduct the testing effort.  
  • The candidate will be responsible for installations, upgrades, support problem resolution.  The candidate will design, install, configure, and support the WAN and other data communications systems or a segment of a network system.
  • Maintain the network hardware and software as well as monitor the network to ensure network availability to all system users.
  • The candidate will perform the necessary maintenance to support network availability.
  • The candidate will support the design, design documentation, factory testing and network integration of IP/MPLS based LAN/WAN network infrastructure.

Primary Responsibilities

  • Develop technical solutions to issues that may be unclear and require deep technical knowledge.
  • Utilizing of various data sources to fully understand the issues and inform the solution, possess strong skillsets in network monitoring tools and deep analysis of network data.
  • Evaluate network service requests and validate/triage unique inquiries.
  • Analyze existing and future network infrastructure and provide solutions requirements.
  • Network hardware and software testing, implementation, integration, and management.
  • Create and update network infrastructure documentation.
  • Support network refresh efforts.
  • Network troubleshooting (Tier 3 & 4 level support)

Basic Qualifications

  • Experience with Cisco routers and switches.
  • Experience with Juniper SRX firewall.
  • Hands on experience with Cisco Nexus equipment
  • Experience establishing and troubleshooting VPNs; knowledge and/or experience with policy-based routing.
  • VMWare experience; demonstrated understanding of IPv4 networks.
  • Layer 2 and Layer 3 hands-on configuration experience, with emphasis on routing protocols BGP, and OSPF.
  • Familiarity with data center infrastructure and experience with Cisco routers and switches


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