Senior Network Engineer (Active Polygraph Required)

Clearance Level
Top Secret SCI + Polygraph
Network Engineering
Sterling, Virginia

REQ#: RQ126757

Travel Required: Less than 10%
Requisition Type: Regular

We are GDIT. We stay at the forefront of innovation to solve complex technical challenges. 

GDIT is your place. Make it your own by discovering new ways to securely and expertly apply the latest technology. Own your opportunity at GDIT and you’ll be a meaningful part of improving how agencies operate. Our work depends on a Network Engineer joining our team to support client activities in Sterling VA.

  • Apply engineering expertise, to include performing in-depth and complex network engineering involving all aspects of the network including core, edge distribution, border, Layer 3/2 routing and switching.
  • Interact with and report network issues to lead architect, including determining future bandwidth needs, conducting redundancy planning, and adopting infrastructure configurations according to industry best practices and standards to meet the client’s business needs.
  • Documents the design with multiple views for various usage levels (technical architectural level, business level, operational level, maintenance level, etc.)
  • Collaborate with system engineers across teams and disciplines to ensure solutions meet established technical goals and are deployed within established timelines.
  • Provide support for implementing routing and switching protocols.
  • Interprets customer requirements and develops internal requirements and design solutions for optimal enterprise communication services.
  • Identifies solutions based on alternative analysis, providing detailed assessments against requirements (technical, cost, business, security, schedule), establishing baseline for the enterprise network.
  • Performs customer requirement interpretation, develops internal network requirements to support the design and delivery of enterprise communication services.
  • Assess customer objectives, goals, intents, requirements, standards, etc. and translate into enterprise objectives and requirements.
  • Evaluates new network technologies and makes recommendations to stakeholders regarding the integration of these technologies into the existing network.
  • Ensure designs comply with all applicable CSfC, Intelligence Community and GDIT CISO interoperability/compatibility standards, current/future system plans, and security requirements.
  • ​Support operations and maintain activities and administer networks including hardware, software, applications software, and all configurations.


  • Hands-on experience with the following hardware: routers (Cisco preferred), Cisco ASA platforms with AnyConnect, Juniper SRX platforms, and Palo Alto Firewalls.
  • Knowledge of TCP/IP and associated routing protocols such as OSPF, ISIS, etc., in addition to VoIP and video teleconferencing (VTC).
  • Hands-on experience with Nessus, Splunk, and CIS benchmark scanning tools.
  • Proficiency with MS Visio and PowerPoint to update and maintain network design documentation and develop design plans to be populated among various engineering teams and stakeholders.
  • Knowledge of VPN solutions to include Site-to-Site, Multi-site, and client-based VPN. Knowledge also includes PKI certificate-based VPN solutions.
  • Knowledge with Certificates Authorities (CA) to include Microsoft Server Certificate Services deployments.
  • Ability for clear and concise oral and written communication; capability to interface at multiple levels and successfully present technical information.
  • Background in supporting certification and accreditation processes in XACTA.


  • Bachelors Degree in Computer Science, Engineering, or a related technical discipline.

Highly Desired Certifications:

  • CCNP, CCIE, JNCP, JNCIE are a plus
  • 8570 IAT II compliance required (CompTIA Security +), 8570 IAT III compliance preferred Certified Systems Security Professional (CISSP)








About Our Work

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.

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.

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.