Sr. Network Engineer, IPv6 SME

Location: Alexandria, VA (Onsite). Candidates must be U.S. citizens and able to obtain and maintain a Department of Defense Public Trust security clearance as a condition of employment.

About the role

We are seeking a highly organized and detail‑oriented Senior Network Engineer/IPv6 Subject Matter Expert to provide network management and IPv6 architecture design support. The incumbent will lead the implementation and augmentation of IPv6 within the existing environment and support the full system‑engineering life‑cycle, including requirements analysis, design, development, integration, testing, and deployment.

Key Responsibilities

• Provide overall network engineering support for a broad range of programs.
• Operate independently as a senior technical advisor, leading architecture discussions and briefing senior stakeholders.
• Design, implement, and troubleshoot enterprise‑scale IP networks.
• Develop and maintain high‑level and low‑level designs (HLDs/LLDs), network diagrams, implementation plans, and technical standards.
• Support network modernization, migration, or transformation in large, complex environments.
• Challenge designs when appropriate, identify risks/dependencies, and develop remediation strategies.
• Lead complex troubleshooting efforts and coordinate across teams.
• Mentor personnel on network engineering best practices.

Required Qualifications

• Bachelor’s degree in Computer Science, Information Technology, Electrical Engineering, Telecommunications, Network Engineering, Cybersecurity, or a related technical discipline (preferred; equivalent education, training, certifications, and experience may be considered).
• 10 + years of professional experience in network engineering, network architecture, or related telecommunications/infrastructure disciplines.
• 5 + years of demonstrated IPv6 experience covering architecture, addressing, routing, implementation, migration, dual‑stack environments, and troubleshooting.
• Experience with enterprise routing/switching and protocols/services such as BGP, OSPF/OSPFv3, EIGRP, IS‑IS, IPv4/IPv6, DNS, DHCP/DHCPv6, ICMP/ICMPv6, TCP/IP, and SNMP.
• Experience with network security technologies, including firewalls, access control, segmentation, and security monitoring.
• Experience with Cisco, F5, and CrowdStrike technologies.
• Experience architecting and implementing zero‑trust solutions.
• Strong technical communication, documentation, presentation, and stakeholder‑management skills.

Preferred Qualifications

• Experience with Federal Government network engineering, IPv6 mandates/standards, or enterprise IPv6 readiness initiatives.
• Experience with enterprise IPv6 adoption/migration roadmaps and IPv6‑only environments.
• Experience with AWS, Microsoft Azure, or equivalent cloud networking; data‑center networking and virtualization.
• Knowledge of integrating IPv6 with firewalls, load balancers, DNS/DHCP, identity/access‑control, security, monitoring, and management platforms.
• Experience in network disaster recovery, resiliency, continuity, automation, modernization, or technology refresh.
• Relevant certifications such as CCIE/CCNP, JNCIP/JNCIE, recognized IPv6 credentials, Azure Network Engineer, AWS Advanced Networking, CISSP, or Security+.

Benefits

• Medical, dental, vision, life, disability, and other insurance plans.
• Employee Stock Purchase Program (ESPP) and 401(k) with company match after 12 months of tenure.
• Health Savings Account (HSA) on a high‑deductible health plan.
• SupportLinc Employee Assistance Program (EAP) with up to eight free counseling sessions.
• Corporate discount savings program and additional discounts.
• On‑demand training program, certification preparation, and a library of technical and leadership courses, books, and seminars (available after six months of tenure).
• Certification discounts and perks for professional associations such as CompTIA and IIBA.
• Dedicated customer‑service team for consultants and a certified Career Coach.