Network Engineer III

Clearance Level
Top Secret SCI + Polygraph
Network Engineering
Springfield, Virginia
St Louis, Missouri
Onsite Workplace
Key Skills For Success

Enterprise Security Architecture (ESA) Fundamentals

Secure Network Architecture

Standard Operating Procedures Preparation

REQ#: RQ160704
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
Job Description

GDIT is your place. You make it your own by embracing autonomy, seizing opportunity, and being trusted to deliver your best every day. We think. We act. We deliver. There is no challenge we can't turn into opportunity. And our work depends on TS/SCI level cleared Network Engineer lll  joining our team to support our Intelligence customer in Springfield, VA or St. Louis, MO.

GDIT's Transport and Cybersecurity Services (TCS) program has an exciting and challenging opportunity for a Network Engineer III on our Network Security Services (NSS) team.

More About the Opportunity:

TCS offers a long-term contract opportunity supporting our intelligence customer. Our team of talented Network and Cybersecurity professionals help design, develop, procure, implement, operate/sustain, and enhance NCE networks and cybersecurity posture in support of national security.

Joining the TCS Team means working with truly cutting-edge technologies, on high performing cyber engineering teams, and benefiting from accelerated professional growth!

What You'll Get to Do:

  • Work with both corporate and customer leadership to research, analyze, and implement enterprise-wide network security solutions/capabilities/enhancements to support customer business/mission goals and objectives.
  • Assist with design, analysis, testing and implementation of state-of-the-art secure network architectures.
  • Conduct risk assessment and provide recommendations for design.
  • Manage WAN, LAN, CAN, and remote network security as well as incident and problem management.
  • Oversee security infrastructure sustainment, maintenance, and advanced configuration. (firewalls, F5 load balancers, web gateways, mail gateways, IDS, and management tools).
  • Oversee the reporting, documentation, and investigation of all security related incidents; lead the development and implementation of corrective measures.
  • Develop and execute standard operating procedures (SOPs) for security tools.
  • Evaluate and report on new network Security technologies to enhance capabilities of the network.
  • Act as liaison to the contract and customer management, and government Designated Approving Authority (DAA) regarding network security status, policies, and procedures.
  • Travel up to 15% of the time CONUS, maybe occasional OCONUS

    You'll Bring These Qualifications:
  • TS/SCI (current)

       Ability to successfully pass and maintain a Government Polygraph (post-hire requirement)
  • Bachelor's Degree and three (3) years of technical experience in Network Security or Network Engineering with large-scale enterprise/global networks in high-paced, diverse environment.

       (Additional experience may be considered in lieu of a degree)
  • Firewalls (e.g. Palo Alto, Juniper, Cisco, etc.)
  • Routers/Switches (e.g. Juniper, Cisco, etc.)
  • Intrusion Detection Systems / IDS Products (e.g. F5 Load Balancer, Cisco FTD, etc.)
  • Unix, RHELS OS, Windows Enterprise AD, VMware, WAN/LAN/CAN
  • DoD Information Assurance Technical (IAT) Level II certification (current)
    DoD CSSP Infrastructure Support certification (current)
Work Requirements
Years of Experience

3 + years of related experience

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


Travel Required



U.S. Citizenship Required

Salary and Benefit Information

The likely salary range for this position is $69,722 - $116,438. 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.
View information about benefits and our total rewards program.

About Our Work

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.

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.