Network Engineer-Senior

Ddc Dine; Virginia; Hybrid; USD 120,000 - 150,000; Full time

Benefits offered by this job

Medical coverage

Dental coverage

Vision coverage

Retirement match

Paid time off

Tuition reimbursement

Employee assistance program

Job summary

Diné Development Corporation (DDC) seeks a Senior Network Engineer to design, implement, and operate secure enterprise networks and unified communications for sensitive mission environments at Quantico, VA. You will lead complex troubleshooting, oversee change activities, and validate patches before production deployment.

Requires 5+ years of experience, a TS clearance (SCI ability preferred), and strong Cisco/NGFW skills with UC and VTC ops. Competitive benefits and on-site roles are offered.

Qualifications

• 5+ years network engineering/operations.
• Active Top Secret clearance with ability to obtain TS/SCI.
• CCNA or Network+ minimum; CCNP preferred.
• Hands-on Cisco enterprise networking experience.

Responsibilities

• Design, implement, operate, and maintain secure LAN/WAN/VLAN, routing, switching, wireless, and UC solutions.
• Install, configure, upgrade, and troubleshoot Cisco switches/routers, firewalls, and network-management platforms.
• Configure Palo Alto or NGFWs and define security policies.
• Monitor network performance, incidents, and security; lead resolution and change activities.
• Coordinate NIPR/SIPR/AFSCI connectivity and service-provider interactions.

Skills

LAN/WAN

Cisco Routing/Switching

Firewall security

UC/Video Teleconferencing

Security monitoring

Education

Bachelor's degree in IT/Cybersecurity/Engineering

Tools

Cisco IOS devices

Palo Alto firewalls

Network management platforms

VTC/UC infrastructure

Job description

## Network Engineer-SeniorApply: Quantico, VA: Full time: Posted Yesterday: JR100396**Position Overview**: Senior Network Engineer responsible for designing, implementing, operating, and sustaining secure enterprise network and unified communications services supporting AFOSI mission environments. The engineer provides senior-level support for LAN, WAN, VLAN, routing, switching, firewall, monitoring, NIPR, SIPR, AFSCI, and video teleconference infrastructure. This senior position leads complex troubleshooting and approved change activities, supports AFCYBER and USCYBERCOM taskings, and validates network patches, software updates, and design changes in test environments before operational implementation. **Responsibilities:** * Design, implement, operate, and maintain secure LAN, WAN, VLAN, routing, switching, wireless, and unified communications solutions.* Install, configure, upgrade, and troubleshoot Cisco switches, routers, firewalls, and associated network-management platforms.* Configure and sustain Palo Alto or comparable next-generation firewall services and security policies.* Monitor network availability, capacity, performance, events, and security conditions and lead resolution of complex incidents.* Troubleshoot NIPR, SIPR, and AFSCI connectivity and coordinate with Government and enterprise service providers through restoration.* Support identity-based access, software-defined networking, Zero Trust, and micro- and macro-segmentation initiatives.* Operate and maintain VTC and unified communications infrastructure and coordinate resolution of service-impacting issues.* Execute applicable USCYBERCOM and AFCYBER orders, taskings, directives, and network changes within required timelines.* Maintain and use TIC/DEV or comparable test environments to validate patches, software, configurations, and network changes before production deployment.* Develop and maintain network diagrams, configurations, baselines, implementation plans, test results, procedures, and change records.* Provide technical leadership, peer review, mentoring, root-cause analysis, and recommendations for network modernization and resilience.**Qualifications:** * Years of Experience: 5+ years network engineering/operations.* Education Level: Bachelor’s degree in IT, Cybersecurity, Engineering, or related field (preferred); equivalent experience considered.* Clearance Requirements: Must have active Top Secret (TS) clearance and the ability to obtain TS with SCI access.* Certification Requirements: CCNA or Network+ (minimum); CCNP preferred.* Any other work-related qualifications needed for the role: Hands-on Cisco enterprise networking experience; familiarity with structured change/configuration control and secure network operations.**About Us**Diné Development Corporation (DDC) is a Navajo Nation–owned family of companies that provides government agencies and commercial organizations with high-quality IT, professional, environmental, and research and development services. DDC is dedicated to empowering the Navajo Nation and the communities we serve.**Benefits**Eligible full-time employees receive a comprehensive benefits package, including medical, dental, vision, life and disability coverage, retirement savings with company match, and paid time off. Additional benefits include voluntary supplemental benefits, access to an employee assistance program, and educational assistance with tuition reimbursement.