IPv6 Network Engineer

Job ID: 113088
Location: Herndon, Virginia  [On-Site]
Category: Infrastructure
Employment Type: Contract
Date Added: 07/21/2026
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Role Summary
A senior network engineer with specialization in IPv6 technologies is responsible for leading assessment, design, testing, and implementation initiatives to transition and to support IPv6. This role requires deep technical expertise and hands-on experience with dual-stack environments, multicast routing, and Cisco platforms. The position involves collaborating with cross-functional teams to ensure a seamless transition to next-generation IP networking while maintaining security and network performance standards.

Responsibilities

  • Conduct comprehensive assessments of existing network infrastructure to evaluate IPv6 readiness across routers, switches, and firewalls.
  • Identify gaps in current IPv4 configurations and develop a strategic migration roadmap for IPv6 integration.
  • Audit hardware and software compatibility for IPv6 support, validating IOS/IOS-XE features.
  • Document current network topology and provide detailed findings and recommendations to stakeholders.
  • Design scalable IPv4/IPv6 dual-stack network solutions ensuring backward compatibility and full IPv6 functionality.
  • Develop IPv6 addressing plans and multicast routing architectures, creating high-level and low-level design documents.
  • Collaborate with security, systems, and application teams to ensure end-to-end IPv6 compatibility.
  • Develop and execute test plans for IPv6 deployment, including tunneling, translation mechanisms, and multicast functionality.
  • Troubleshoot complex dual-stack network issues, perform root-cause analysis, and document procedures for production migration.
  • Serve as a subject matter expert, mentor junior engineers, and participate in change advisory board reviews for network updates.

Qualifications

  • Over 7 years of progressive experience in enterprise or service provider network engineering.
  • Proven hands-on experience with IPv6 addressing, routing, and migration strategies.
  • Demonstrated expertise designing and operating IPv4/IPv6 dual-stack networks.
  • Strong knowledge of multicast routing protocols such as PIM-SM, IGMP, and MLD in both IPv4 and IPv6.
  • Cisco CCNP (Enterprise or Service Provider) certification or equivalent industry experience.
  • Proficiency with routing protocols including OSPFv2/v3 and BGP (IPv6 address families).
  • Hands-on experience with Cisco routing and switching platforms.
  • Ability to produce clear and professional network design documentation, test plans, and assessment reports.
  • Excellent troubleshooting skills and experience in complex network environments.
  • Strong communication skills for knowledge transfer and stakeholder engagement.

Publishing Pay Range: $55.00 – $65.00 USD Hourly
This position is based in office and requires employee to work on-site.

About GDH:
At GDH, we believe in the power of people and the importance of caring. Our culture statement, “We care about people,” isn’t just a tagline – it’s the core of everything we do. GDH is a premier staffing and talent solutions company dedicated to helping businesses find the best talent and assisting job seekers in finding their dream jobs.

Who We Are:
GDH, founded in 2001, has grown into a leader in providing staffing solutions across various industries. We specialize in IT across several sectors, connecting top talent with leading enterprises. As a Best of Staffing firm recognized for excellence in client, employee, talent, and women’s services, we pride ourselves on our commitment to quality and service.

GDH Benefits

GDH offers a range of employee benefits that are designed to promote well-being and help maintain a healthy work-life balance. These comprehensive benefits cover various aspects of an employee’s life and aim to enhance their overall experience with the company. Our health benefits include three medical insurance options with access to KISx Card, Zero Card, and HealthJoy concierge services. Other plan offerings include dental, vision, life, disability, supplemental insurance, and pet insurance plans. Enjoy additional perks like holiday pay, 401(k) plan, direct deposit, an employee referral program, work-life balance benefits, a Wellbeats membership, a discounted gym membership program, and more!  For more detailed information on benefits, please go to GDH’s website under the tab for candidates.

GDH provides equal employment opportunities (EEO) to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, gender, sex (including pregnancy), sexual orientation, gender identity, national origin, age, disability, genetic information, marital status, ancestry, protected veteran status, military or uniformed service member status, or any other status or characteristic protected by applicable federal, state, and local laws. Applicants with disabilities who require an accommodation or assistance in applying and/or for interviewing, please contact our HR Department.

Please visit our notice of collection for California applicants.

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