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General Dynamics Information Technology Network Engineer III - TS/SCI w/Polygraph in Chantilly, Virginia

Req ID: RQ180163

Type of Requisition: Regular

Clearance Level Must Be Able to Obtain: None

Job Family: Network Engineering


Hands on Work,Networks,Network Systems


10 + years of related experience

US Citizenship Required:


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.

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


  • The position requires an 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


  • 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





The likely salary range for this position is $124,950 - $169,050. This is not, however, a guarantee of compensation or salary. Rather, salary will be set based on experience, geographic location and possibly contractual requirements and could fall outside of this range.

Our benefits package for all US-based employees includes a variety of medical plan options, some with Health Savings Accounts, dental plan options, a vision plan, and a 401(k) plan offering the ability to contribute both pre and post-tax dollars up to the IRS annual limits and receive a company match. To encourage work/life balance, GDIT offers employees full flex work weeks where possible and a variety of paid time off plans, including vacation, sick and personal time, holidays, paid parental, military, bereavement and jury duty leave. To ensure our employees are able to protect their income, other offerings such as short and long-term disability benefits, life, accidental death and dismemberment, personal accident, critical illness and business travel and accident insurance are provided or available. We regularly review our Total Rewards package to ensure our offerings are competitive and reflect what our employees have told us they value most.

We are GDIT. A global technology and professional services company that delivers consulting, technology and mission services to every major agency across the U.S. government, defense and intelligence community. Our 30,000 experts extract the power of technology to create immediate value and deliver solutions at the edge of innovation. We operate across 30 countries worldwide, offering leading capabilities in digital modernization, AI/ML, Cloud, Cyber and application development. Together with our clients, we strive to create a safer, smarter world by harnessing the power of deep expertise and advanced technology.

We connect people with the most impactful client missions, creating an unparalleled work experience that allows them to see their impact every day. We create opportunities for our people to lead and learn simultaneously. From securing our nation’s most sensitive systems, to enabling digital transformation and cloud adoption, our people are the ones who make change real.

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.