Principal Network Engineer | TS clearance

Clearance Level
Top Secret
Network Engineering
Arlington, Virginia
Onsite Workplace
Key Skills For Success

Network Engineering

Network Infrastructures

Network Technology

REQ#: RQ145673
Public Trust: None
Requisition Type: Regular
Your Impact

Own your opportunity to work with the largest government agency in the nation. Make an impact by advancing the Department of Defense’s mission to keep our country safe and secure.

Job Description

Secure and expertly apply the latest technologies to advance the mission as a Principal Network Engineer with GDIT. Your work in enterprise IT will help our clients overcome evolving demands and missions. Own the opportunity to accelerate digital modernization for our clients as you accelerate your career.

At GDIT, people are our differentiator. As a Principal Network Engineer , you will help ensure today is safe and tomorrow is smarter. Our work depends on Principal Network Engineer joining our Joint Service Provider Enterprise Transport Management - Next Gen (JSP ETM - NG) program at the Pentagon in Arlington, VA.

Due to the nature of work this role entails, telecommuting is not allowed and will require the employee to report full-time onsite.


  • Provide architecture/engineering expertise for network implementations, cloud environment integrations, project designs, and standards development, as well as onboarding new tenants

  • Provide administration/support for intelligent DNS routing between enterprise locations/data centers, as well as plan and implement upgrades (includes installation of new equipment)

  • Implement approved authentication and certificate management controls

  • Use caching (static html content) for the enterprise infrastructure environment (hardware, software, and configuration components) and supported tenants

  • Support deployment options

  • Configure self IPs, port lockdown, and network routes

  • Configure remote logging to Splunk

  • Adhere to change management processes and procedures

  • Troubleshoot, configure, upgrade, maintain, and monitor the load balancer network architecture (performance, configurations, traffic flow, application monitoring, CPU capacity/utilization)

  • Analyze network alarms and identify sources

  • Coordinate with on-site support personnel while troubleshooting

  • Use enterprise service management tools to initiate, respond, and track service requests

  • Create reports and analyze performance metrics

  • Develop processes/procedures and related engineering documentation for troubleshooting and quickly identifying issues

  • Perform reach back to OEM Vendors to de-conflict operational issues with known operating system bugs and security alerts

  • Partner with the information security personnel to assess potential exposure to vulnerabilities, identify mitigation plans, and ensure compliance with enterprise security baselines and standards

  • Evaluate modern technologies to optimize network efficiency and review/provide recommendations to improve the network

  • Inform management in a clear, concise, and timely manner of any customer or technical issues

  • Be responsive and decisive on adjusting architecture as customer requirements and technology evolves


  • Security Clearance Level: Active Secret clearance

  • Required Experience: 8+ years primary role operating, troubleshooting, installing network routers and switches; 8+ years primary role directly designing, architecting routed and switched networks up to and including enterprise sized networking solutions; 2+ years as senior or lead engineer in planning, designing, and building software defined networks; 3+ years DoD environment

  • Required Certifications: DoD 8570 IAT Level II certification; At least one nationally recognized certification for senior network administrators/engineers/architects tied to the proposed solution’s routers and switches

  • Required Education: Bachelor’s degree in Information Systems, Engineering or Equivalent; Master’s degree preferred

  • Required Technical Skills: Configuring and installing various network devices and services; Monitoring network performance and resource utilization, trending, capacity planning; Use of current and emergent network design principles and protocols; Experience with network virtualization technologies; Experience with multi-tenant network architectures; Familiarity with a width variety network routing and switching equipment devices from multiple vendor; Scripting languages such as Pearl, Python, coding for network threshold events.

  • Location: Onsite at the Pentagon - Arlington, VA


  • 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

8 + years of related experience

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


CompTIA - Security+ CE - CompTIA

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.