Network Engineer Principal (TS/Q clearance required)

General Dynamics - IT; Denver (CO); On-site; USD 110,000 - 170,000; Full time

Job summary

General Dynamics - IT is seeking an experienced Network Engineer to design, implement, maintain, and troubleshoot complex network systems for a large-scale Cisco environment supporting the Department of Energy's NNSA. The role emphasizes network performance, security, reliability, and scalability across LAN/MAN/WAN, with onsite work at a Denver client site.

The ideal candidate has a bachelor's degree (Cisco certifications valued), 8+ years in network engineering, and DOE Q/TS clearance.

Qualifications

• Education: Bachelor's degree or equivalent years of experience. Having a Cisco certification would be more valuable.
• Experience: 8+ years of professional experience in network engineering, infrastructure design, and circuit troubleshooting involving routing & switching protocols.
• Security Clearance: DOE Q or TS clearance required.
• Technical Expertise: Deep knowledge of Cisco routers, switches, firewalls, wireless technologies, and network design principles. (Experience with Juniper and Palo Alto also a plus) Expertise in protocols like BGP, OSPF, EIGRP, STP, RSTP, VXLAN, and LACP. Understanding of network security practices, including system hardening and compliance with organizational standards."],
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Responsibilities

• Infrastructure Design & Implementation: Design, build, and implement network systems for LAN, MAN, and WAN environments, ensuring they meet performance and scalability requirements.
• System Monitoring & Troubleshooting: Monitor and diagnose network issues, performing root-cause analysis to address connectivity problems and optimize operations.
• Traffic Analysis & Capacity Planning: Analyze network traffic patterns and provide capacity planning solutions to support infrastructure growth and performance improvements.
• Vendor Coordination: Interface with vendor support services to ensure timely resolution of issues and proper escalation during outages or performance degradations.
• System Configuration: Perform system-level design and configuration, determining hardware, operating systems, and platform specifications to meet operational requirements.
• Quality Assurance: Evaluate and test new and existing network products and technologies, ensuring they align with organizational standards and quality protocols.
• Network Operations Oversight: Provide technical assistance and oversight across all network operations, including LAN/MAN/WAN administration, security protocols, and systems integration.
• Policy Input: Contribute to policy discussions by providing insights on standards, technical constraints, and budget considerations impacting network operations.
• Testing & Optimization: Conduct routine testing and analysis of network hardware, communications systems, and connectivity components.
• Performance Enhancements: Identify opportunities for network optimization and implement improvements to maximize system performance and security.
• Documentation: Create and maintain detailed documentation for network configurations, processes, and procedures to support operational consistency.

Skills

Cisco routers

Cisco switches

Firewalls

Wireless tech

Routing protocols

BGP

OSPF

EIGRP

STP/RSTP

VXLAN/LACP

Network security

Education

Bachelor's degree or equivalent experience

Tools

Juniper devices

Palo Alto devices

Job description

GDIT is seeking an experienced Network Engineer to join our team supporting mission-critical operations for the Department of Energy's National Nuclear Security Administration (NNSA). In this role, you will design, implement, maintain, and troubleshoot complex network systems to ensure optimal performance, security, reliability, and scalability in a large-scale Cisco environment. This is an exciting opportunity to apply your expertise in network infrastructure and security best practices to advance enterprise IT capabilities for critical government programs.

Responsibilities

• Infrastructure Design & Implementation: Design, build, and implement network systems for LAN, MAN, and WAN environments, ensuring they meet performance and scalability requirements.
• System Monitoring & Troubleshooting: Monitor and diagnose network issues, performing root-cause analysis to address connectivity problems and optimize operations.
• Traffic Analysis & Capacity Planning: Analyze network traffic patterns and provide capacity planning solutions to support infrastructure growth and performance improvements.
• Vendor Coordination: Interface with vendor support services to ensure timely resolution of issues and proper escalation during outages or performance degradations.
• System Configuration: Perform system-level design and configuration, determining hardware, operating systems, and platform specifications to meet operational requirements.
• Quality Assurance: Evaluate and test new and existing network products and technologies, ensuring they align with organizational standards and quality protocols.
• Network Operations Oversight: Provide technical assistance and oversight across all network operations, including LAN/MAN/WAN administration, security protocols, and systems integration.
• Policy Input: Contribute to policy discussions by providing insights on standards, technical constraints, and budget considerations impacting network operations.
• Testing & Optimization: Conduct routine testing and analysis of network hardware, communications systems, and connectivity components.
• Performance Enhancements: Identify opportunities for network optimization and implement improvements to maximize system performance and security.
• Documentation: Create and maintain detailed documentation for network configurations, processes, and procedures to support operational consistency.

Minimum Qualifications

• Education: Bachelor's degree or equivalent years of experience. Having a Cisco certification would be more valuable.
• Experience: 8+ years of professional experience in network engineering, infrastructure design, and circuit troubleshooting involving routing & switching protocols.
• Security Clearance: DOE Q or TS clearance required.
• Technical Expertise: Deep knowledge of Cisco routers, switches, firewalls, wireless technologies, and network design principles. (Experience with Juniper and Palo Alto also a plus) Expertise in protocols like BGP, OSPF, EIGRP, STP, RSTP, VXLAN, and LACP. Understanding of network security practices, including system hardening and compliance with organizational standards.

Preferred Qualifications

• DOE Experience: Previous experience working with the Department of Energy or similar federal agencies.
• DNS & Configuration Expertise: Familiarity with Microsoft DNS and Unix BIND systems.
• Compliance Standards: Experience with DISA STIGs and other security frameworks required for federal compliance.
• CCNA, CCNP, CCDA, CCIE, or other Cisco certification.

Work Location: Onsite at client site in Denver, CO

Citizenship: US Citizenship required.

Security Clearance: DOE Q or TS clearance required.

Why Join GDIT

• Professional Growth: Access internal mobility programs, paid certifications, and continuous learning opportunities to expand your career journey.
• Comprehensive Benefits: Competitive compensation, health and wellness packages, 401(k) company match, and paid time off.
• Collaborative Environment: Work alongside a diverse and innovative team that prioritizes teamwork and high-impact results.
• Mission Impact: Support critical government programs by advancing enterprise IT infrastructure and modernizing essential functions.

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