Senior Network Engineer (TS/Q Clearance required)

GDIT is seeking an experienced Senior 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.

Responsibilities

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

Requirements

• Bachelor's degree or equivalent years of experience. Cisco certification is highly valued.
• 12+ years of professional experience in network engineering, infrastructure design, and circuit troubleshooting involving routing & switching protocols.
• DOE Q or TS clearance required.
• US Citizenship required.

Skills

• Deep knowledge of Cisco routers, switches, firewalls, wireless technologies, and network design principles. (Experience with Juniper and Palo Alto is 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.
• Familiarity with Microsoft DNS and Unix BIND systems.
• Experience with DISA STIGs and other security frameworks required for federal compliance.
• CCNA, CCNP, CCDA, CCIE, or other Cisco certifications.

Benefits

• Competitive compensation and health and wellness packages.
• 401(k) plan with company match.
• Paid time off, including vacation, sick, personal time, holidays, parental, military, bereavement, and jury duty leave.
• Short and long-term disability benefits, life insurance, accidental death and dismemberment, personal accident, critical illness, and business travel and accident insurance.
• Access to internal mobility programs, paid certifications, and continuous learning opportunities.

Pay

The likely salary range for this position is $110,500 - $149,500. Salary will be set based on experience, geographic location, and possibly contractual requirements.

Schedule

• Scheduled Weekly Hours: 40
• Travel Required: Less than 10%
• Telecommuting Options: Onsite

Work Location

• USA MD Germantown - 19901 Germantown Rd (MDC121)
• USA NM Albuquerque