Senior Network Engineer – TS Clearance Required (On‑Site)

RCG, Inc.; Washington (District of Columbia); On-site; USD 140,000 - 150,000; Full time

Benefits offered by this job

Great Place to Work

Competitive benefits

Career development

Job summary

RCG, Inc. is seeking a Senior Network Engineer to lead enterprise network operations and modernization for a federal agency in Washington, DC. The role emphasizes independent ownership of complex issues, architecture reviews, and mentoring junior staff.

You will oversee routing, switching, WAN, firewalls, secure transport, and collaboration services, while delivering changes, documentation, and robust runbooks. On-site work in DC is required with occasional after-hours.

Qualifications

• Bachelor's degree in Computer Science, Information Systems, Engineering, or related technical discipline.
• Minimum of 8+ years hands-on network engineering experience in enterprise, federal, or DoD environments.
• Active CCNP Enterprise, CCNP Security, or equivalent advanced networking certification.
• Experience with Cisco routing and switching, enterprise LAN/WAN, HA technologies, and multi-site troubleshooting.

Responsibilities

• Provide senior technical leadership for enterprise network operations, including routing, switching, firewalls, WAN transport, secure communications, and supporting infrastructure.
• Troubleshoot complex network issues across Layer 1 through Layer 7, including routing, switching, firewall policy, encrypted transport, and application/service connectivity.
• Design, review, implement, and validate network changes involving routing, switching, firewall policies, secure transport, and modernization initiatives.
• Support VOSIP, VTC, CUCM, and collaboration services, including network path validation, QoS considerations, multicast behavior, and secure communications requirements.
• Participate in network architecture reviews, modernization efforts, and major infrastructure upgrades.
• Lead maintenance-window activities, including implementation planning, rollback procedures, validation testing, and post-change reviews.
• Develop and maintain network diagrams, as-built documentation, implementation plans, validation procedures, and operational runbooks.
• Monitor network performance and troubleshoot issues using enterprise monitoring and diagnostic tools.
• Collaborate with government stakeholders, security teams, ISSOs, vendors, and technical SMEs to support operations, compliance, and modernization efforts.
• Mentor junior and mid-level engineers on troubleshooting, packet flow analysis, change management, and operational best practices.

Skills

Cisco routing

Troubleshooting

Network architecture

Documentation

Mentoring

Security compliance

Problem solving

Education

Bachelor's degree in CS/Engineering

Tools

Cisco devices

Dell equipment

Palo Alto

Juniper

Nexus

Wireshark

Job description

RCG, Inc. is seeking a Senior Network Engineer to lead enterprise network operations and modernization for a federal agency in Washington, DC. The role emphasizes independent ownership of complex issues, architecture reviews, and mentoring junior staff.

You will oversee routing, switching, WAN, firewalls, secure transport, and collaboration services, while delivering changes, documentation, and robust runbooks. On-site work in DC is required with occasional after-hours.