Network Engineer - III

Clearance Level
Top Secret SCI + Polygraph
Network Engineering
Chantilly, Virginia
Onsite Workplace
Key Skills For Success

Hands on Work


Network Systems

REQ#: RQ148747
Requisition Type: Regular
Your Impact

Own your opportunity to serve as a critical component of our nation’s safety and security. Make an impact by using your expertise to protect our country from threats.

Job Description

Discover a career that is challenging, impactful, and mission-critical. Join our team as a Network Engineer III and make an impact on customer activities. While you help us advance the mission, we’ll help advance your career.

At GDIT, people are our differentiator. As a Network Engineer III, you will help ensure today is safe and tomorrow is smarter. Our work depends on a Network Engineer III joining our team and is responsible for developing, engineering, and deploying technical solutions within the client wide, dedicated mission network. This individual will work within a small, mission focused team of network and systems engineers to implement technical solutions addressing challenging collaboration and data protection problems.


  • Develop Datacenter, LAN, WAN, and Client Access networks/systems  
  • Integrate, Test, and deploy systems
  • Perform full lifecycle management of network systems (building, deploying, maintaining)
  • Monitor networks
  • Perform other duties as assigned at the discretion of Project Management


Required Qualifications

  • Active TS/SCI with Polygraph
  • Bachelor’s degree in a related field preferred
    • No degree + 10 years relevant experience
    • Associate’s Degree + 8 years relevant experience
    • Bachelor’s Degree + six years experience   
  • Minimum of 6 years of experience specific to the skill
  • Ability to travel on an infrequent, but as needed basis, primarily domestic
  • Recent hands-on experience with Cisco Datacenter, WAN, LAN, Client Access technologies such as MACsec, HSRP, VRF, VPC, ACLs, BGP, EIGRP
  • Recent hands-on experience with IOS-XE, NX-OS, Linux
  • Recent hands-on experience with client specific internal and external transport networks
  • Recent hands-on experience with Firewalls and VPN Concentrators (FTD and ASA)
  • Recent hands-on experience with Software Defined Networking technologies
  • Recent hands-on experience with Network and Application load balancers
  • Knowledge of, and hands on experience implementing IT and Cyber Security best practices
  • Experience with managing engineering projects (I.e., design, build, deploy)
  • Strong analytical and problem-solving skills; demonstrated ability to analyze complex situations, determine course of action and act promptly and effectively when problems arise
  • Experience with scripting languages such as Bash, Powershell, python, etc.
  • Demonstrated outstanding interpersonal skills and strong oral and written communication skills
  • Excellent communication skills and ability to work independently as well on collaborative teams

Desired Qualifications

  • Active TS/SCI with Poly with most recent BI/Polygraph dates within the last five years
  • Experience, designing, building, deploying, and maintaining sensitive networks
  • Experience building, deploying, maintaining, Cisco Application Centric Infrastructure (ACI) networks
  • Experience, building, deploying, maintaining Cisco ASAs via Firepower management.
  • Experience building, deploying, maintaining Cisco, Hyperflex,
  • Experience, building, deploying, maintaining Palo Alto firewalls via Panorama
  • Experience, building, deploying, maintaining, Citrix Application Delivery Controllers
  • Knowledge with SIEM and security analytical technologies (e.g. Splunk, pcap, Netflow, Solarwinds, etc.)
  • Experience with Linux OS, Cisco IOS, IOS-XE, NX-OS
  • Hands-on experience with cloud technologies, their provisioning and security
  • Ability to assess emerging technologies, determine their impact on corporate systems and incorporate them into technical plans


  • 401K with company match
  • Comprehensive health and wellness packages
  • Internal mobility team dedicated to helping you own your career
  • Professional growth opportunities including paid education and certifications
  • Cutting-edge technology you can learn from
  • Rest and recharge with paid vacation and holidays

Work Requirements
Years of Experience

10 + years of related experience

* may vary based on technical training, certification(s), or degree

Travel Required

Less than 10%


U.S. Citizenship Required

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 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.