Senior Network Engineer - TS/SCI with Polygraph

General Dynamics Information Technology, Inc.; Reston (VA); On-site; USD 128,000 - 173,000; Full time

Benefits offered by this job

401K with company match

Comprehensive health and wellness

Professional growth (paid education &

Paid vacation and holidays

Job summary

General Dynamics Information Technology, Inc. seeks a Senior Network Engineer to design and engineer network solutions for DoW IT architecture. You will build and maintain LAN/WAN networks, provide documentation, and support secure data flows and firewall rules.

The role requires TS/SCI with Polygraph readiness and strong communication skills. The position is on customer site with opportunities for professional growth including paid education and certifications.

Qualifications

• Bachelor’s degree in a field applicable to this work.
• 6+ years of related experience.
• Must presently be 8570 compliant (IAT Level 2 preferred); must be 8570 compliant by date of security indoctrination with CE as needed.

Responsibilities

• Design and develop voice, video, RF, and data communications networks.
• Engineer, design, implement LANs/WANs, VPNs, and site-to-site connections; oversee servers, storage and backups; troubleshoot security and VLAN issues.
• Solve complex network issues, evaluate and propose upgrades to increase capability, reliability and cost savings.
• Create network topologies, provide engineering designs and plans for installation, integration, testing, and maintenance.
• Document requirements, planning, development, and communicate current network status.

Skills

Excellent communication

Problem solving

Team player

Independent worker

Education

Bachelor's degree in relevant field

Tools

8570 IAT Level 2

CCNP certification

Job description

Transform technology into opportunity as a Network Engineer Senior with GDIT. A career in enterprise IT means connecting and enhancing the systems that matter most. At GDIT you’ll be at the forefront of innovation and play a meaningful part in improving how agencies operate.

At GDIT, people are our differentiator. As a Network Engineer Senior you will help ensure today is safe and tomorrow is smarter. Our work depends on Network Engineer Associate joining our team to perform network design and engineering support services for the DoW IT architecture.

HOW A NETWORK ENGINEER ASSOCIATE WILL MAKE AN IMPACT

• Responsible for the design and development of voice, video, radio frequency, and/or data communications networks
• Engineer, design, implement network solutions including LANs/WANs/Site-to-site, VPNs/Point-to-point/point to multipoint. Serve as network systems engineer overseeing servers, storage and backup systems. Troubleshoot port security issues, VLAN issues and network outages.Control network management activities, data flows and firewall rules.
• Solve complex Network issues to resolve challenges; Assist in investigating, evaluating, and proposing new network systems and upgrades/modifications to existing resources that would increase capabilities, efficiency, reliability, and cost savings; Assist in developing plans for integrating network systems to include implementation schedule, costing, and resource requirements.
• Build network topologies to deliver content from specific providers to users; Answer technical questions; recommend and implement approved course of action; Design, implement or maintain networks for LAN and WAN systems; Provide engineering designs, and plans for installation, integration, testing, upgrade, analysis, and maintenance/expansion of the network environment; Prepare network engineering documentation ranging from requirements, conceptual planning, research and development efforts, complete system construction, to customization of existing network configurations and assist in communicating current operational status of networks.
• Meaningful work to perform network engineering studies on communication paths for deployed systems; Perform studies to determine requirements for bandwidth, data throughput, security, and reliability.
• You will use your relevant skills to maintain technical manuals and standard operating procedures; Develop/implement network communications paths for remote data sources.

WHAT YOU’LL NEED TO SUCCEED:

• Education: Bachelor of Arts/Bachelor of Science in a field applicable to this work.
• Required Experience: 6+ years of related experience
• Required Technical Skills: Must presently be 8570 compliant (IAT Level 2 preferred); must be 8570 compliant (IAT Level 2) by date of security indoctrination with any necessary continuing education (CE) for certification
• Security Clearance Level: TS/SCI with Polygraph
• Required Skills and Abilities: Excellent communication, problem solving, team player, able to work without direction.
• Preferred Skills: Cisco Certified Network Professional (CCNP) certification; Experience with multi-level security domains; Experience with Installation, configuration, and maintenance of GDIT TACLANE and other crypto devices; Experience with networks containing Radiant Mercury multi-level security appliances.
• Location: On Customer Site
• US Citizenship Required

GDIT IS YOUR PLACE:

• 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

#VA_2026Alumni

#GDITEnhanced2026

#GDITCareers

#JET

The likely salary range for this position is $127,500 - $172,500. 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.

Total Rewards at GDIT:

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.

Our Identity Verification Process:

As part of the hiring process, we will ask you to complete an identity verification process that leverages advanced biometrics and artificial intelligence to ensure authenticity and protect against identity fraud. You are expected to be on camera during virtual interviews. We reserve the right to take your picture to verify your identity and prevent fraud. By proceeding, you authorize the collection, processing, and use of your biometric data for identity verification and security purposes.

About Our Work:

We are GDIT. A global technology and professional services company that delivers technology solutions and mission services to every major agency across the U.S. government, defense and intelligence community. Our 26,000 experts extract the power of technology to create immediate value and deliver solutions at the edge of innovation. We operate across 50+ countries worldwide, offering leading mission-ready capabilities in AI, cloud, cyber and software development.

Join our Talent Community to stay up to date on our career opportunities and events at https://gdit.com/tc.

Equal Opportunity Employer / Individuals with Disabilities / Protected Veterans