• Location: Annapolis Junction, Maryland
  • Type: Contract
  • Job #2622

Title: Senior Network Engineer
Location: Annapolis Junction, MD
*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.

Preferred Qualifications:

  • Experience designing and deploying Cisco routing/switching technologies as well as incorporating Cisco firewalls into a large, diverse network.
  • Experience with network management tools such as SolarWinds.
  • Experience with logging tools such as Splunk.
  • Experience creating / maintaining detailed system / network diagrams.
  • Designing and implementing new network solutions and/or improving the efficiency of current networks
  • Experience with enterprise networking including virtual networking experience (VxLAN, MPLS, with segment routing, traffic management, QoS) is a plus
  • Experience with Layer 1, Layer 2, Layer 3 IT cloud infrastructure technologies is a plus
  • Installing, configuring, and supporting network equipment including routers, proxy servers, switches, WAN accelerators, DNS and DHCP
  • Configuring firewalls, routing, and switching to maximize network efficiency and security
  • Maximizing network performance through ongoing monitoring and troubleshooting
  • Updating network equipment to the latest firmware releases
  • Demonstrate strong analytical, troubleshooting, and problem-solving skills.
  • Evaluates and recommends solutions and strategies to program leadership.
  • Promotes the architecture vision to management, stakeholders, and staff.
  • Have knowledge with monitoring network performance, solving technical issues, deploying, configuring, and upgrading network equipment, managing firewall changes, ensuring network security, and providing customer service. This position will collaborate with other departments and vendors to plan, design, implement and oversee all network services including wireless, virtual private networking (VPN), firewall, Internet, switching and routing.
  • Programing in Python and Perl.
  • Document the design, operation, and troubleshooting of network platforms and procedures in tools like Confluence
  • Experience with creating and updating network diagrams, network infrastructure performance reports and dashboards in tools like Visio, Solarwinds, ThousandEyes, ExtraHop and Sumo Logic
  • Computer Science background is required.


  • Minimum General Experience: At least ten (10) years developing and delivering IT Architectures or IT systems design/ engineering services or supported that activity with an organization.
  • Functional Responsibility: Provides architecture and business consulting services. Functions as lead consultant and project manager on technically complex projects.
  • Minimum Education: A BS in Computer Science, or related discipline, or equivalent years of experience.


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