Network Engineer SME: TS/SCI w/poly

at General Dynamics Information Technology
Published November 5, 2022
Location McLean, VA
Category Default  
Job Type Full-time  


Type of Requisition:


Clearance Level Must Currently Possess:

Top Secret/SCI

Clearance Level Must Be Able to Obtain:

Top Secret SCI + Polygraph


No Suitability Required

Public Trust/Other Required:

Job Family:

Network Engineering

Job Description:

The Network Engineer will be responsible for maintaining the design and the integrity of the customer s complex internal network, including customer-facing hosted and cloud environments. They will provide expert technical assistance to team members with high-level system and networking request. They will also secure and manage network infrastructures to protect productivity, mitigate threats, and reduce costs. This role will be responsible for designing, implementation and testing complex infrastructure in support of our customer needs.


  • Installation and maintenance of network equipment
  • Troubleshooting and resolution of network issues
  • Design network architectures based on customer requirements and industry best practices
  • Development of unique solutions that will meet customer requirements and industry best practices
  • Collaborate effectively with other IT disciplines (e.g., Storage, Platform, Application) to troubleshoot and resolve complex problems
  • Develop and maintain configurations plans for Cisco ACI design, planning, implementation, and testing, based on a multi datacenter configurations
  • Create architectural design solutions and successfully present them to client stakeholders.
  • Work with infrastructure engineers to identify new products and solutions
  • Document maintenance for all computer systems and network infrastructure
  • Maintain systems and documentation as needed for audits and compliance
  • Communications with customers: keeping them informed of incident progress, notifying of impending changes, or coordinated outages
  • Be available for other engineers and coach them to resolution
  • Participate in 24x7 on call and assist in resolving issues outside normal business hours


  • TS/SCI with polygraph

  • Bachelor s Degree in Computer Science or a related technical discipline, or the equivalent combination of education, technical training, or work/military experience
  • 10+ years of experience with architecting and designing IP networks and associated technologies
  • In-depth understanding of networking to include routing, switching, network monitoring and management
  • Strong troubleshooting skills specific to network connectivity, security, and ability to effectively work in cross functional teams as needed to resolve issues
  • SME for SDN engagements built around Cisco ACI
  • Background in Cisco ACI design, planning, implementation, and testing, based on a multi datacenter configurations
  • Good team and collaboration skills
  • Ability to research and find new and innovative technologies to enhance the existing network
  • Define network strategy with respect to technology domain standards and design goals
  • Provide technical design and architectural leadership, including documenting and diagramming the logical, physical and process views
  • Experience analyzing network traffic, using a variety of network tools to assess security-related events to assist in rapid identification and isolation of issues during incidents and outages
  • Experience in designing, configuring, implementing, and troubleshooting these various network technologies and protocols
  • Experience designing, deploying, and maintaining boundary security solutions and exposure to enterprise network architecture
  • Good knowledge and hands-on experience with VXLAN/EVPN


  • Experience with Network Access Control and Segmentation
  • Experience with security compliance standards
  • Experience with site-to-site VPNs and/or remote access VPNs
  • Network programmability for automating network tasks (Ansible, Puppet, Chef, Python, Rest API s)
  • Experience with Data Center and co-location solutions as they relate to SDN architecture and Design
  • NextGen Firewall Experience
  • Experience configuring/administrating various network technologies including: Cisco ACI, Cisco DCNM, OTV, VMware NSX
  • Demonstrated experience designing and implementing network reference architecture from mission requirements gathering to technology rollout oversight, including capacity management, technology selection, integration of multiple tools and technical documentation
  • Familiarity with Software defined networking (SDN) Network Disaggregation technologies and methodologies along with open source solutions
  • Ability to brief complex information to senior leadership
  • Familiarity with Software defined networking (SDN) Network Disaggregation technologies and methodologies along with open source solutions
  • Drive enhancements through full life-cycle from concept to final implementation and support


Scheduled Weekly Hours:


Travel Required:

Less than 10%

Telecommuting Options:


Work Location:


Additional Work Locations:

COVID-19 Vaccination: GDIT does not have a vaccination mandate applicable to all employees. To protect the health and safety of its employees and to comply with customer requirements, however, GDIT may require employees in certain positions to be fully vaccinated against COVID-19. Vaccination requirements will depend on the status of the federal contractor mandate and customer site requirements.

We are GDIT. The people supporting some of the most complex government, defense, and intelligence projects across the country. We deliver. Bringing the expertise needed to understand and advance critical missions. We transform. Shifting the ways clients invest in, integrate, and innovate technology solutions. We ensure today is safe and tomorrow is smarter. We are there. On the ground, beside our clients, in the lab, and everywhere in between. Offering the technology transformations, strategy, and mission services needed to get the job done.

GDIT is an Equal Opportunity/Affirmative Action employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or veteran status, or any other protected class.

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