Network Engineer-Senior with Security Clearance

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. Equal Opportunity & Compliance Statement This contractor and subcontractor shall abide by the requirements of 41 CFR 60-1.4(a), 60-300.5(a), and 60-741.5(a). These regulations prohibit discrimination against qualified individuals based on their status as protected veterans or individuals with disabilities, and prohibit discrimination against all individuals based on their race, color, religion, sex, sexual orientation, gender identity, national origin, or for inquiring about, discussing, or disclosing information about compensation, or any other basis prohibited by law. We participate in E-Verify. DDC is committed to providing equal employment opportunities to all applicants and employees. If you require a reasonable accommodation to participate in the application or interview process, please contact Recruiting for assistance