IPv6 Engineer

Job ID: 112763
Location: Herndon, Virginia  [On-Site]
Category: Infrastructure
Employment Type: Contract
Date Added: 06/04/2026
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Role Summary
Seeking a highly experienced Senior Network Engineer with specialized expertise in IPv6 technologies to support enterprise-level network modernization initiatives. This role involves leading assessment, design, testing, and implementation of IPv6 and dual-stack network solutions. The ideal candidate will possess deep hands-on knowledge of IPv6 routing, multicast protocols, and Cisco platforms to facilitate seamless network upgrades and ensure secure, scalable IP infrastructure.

Responsibilities

  • Conduct comprehensive assessments of existing IPv4 network infrastructure to evaluate readiness for IPv6 integration, including hardware, software, and topology audits.
  • Develop detailed roadmaps and strategies for IPv6 transition, addressing gaps and ensuring compatibility across network devices and systems.
  • Design scalable IPv6 addressing schemes and dual-stack solutions to enable backward compatibility while providing full IPv6 functionality.
  • Create high-level and low-level network design documents, including topology diagrams, routing policies, and IP allocation plans.
  • Develop and execute testing plans for IPv6 deployment, covering dual-stack, tunneling protocols, translation mechanisms (NAT64/DNS64), and multicast routing.
  • Perform lab-based proof-of-concept testing to validate IPv6 configurations, multicast functionality, and routing protocol behavior before production rollout.
  • Troubleshoot complex IPv6 and dual-stack network issues, providing root cause analysis and resolution strategies.
  • Collaborate with security, systems, and application teams to ensure end-to-end IPv6 compatibility and security compliance.
  • Develop and document migration procedures, change management plans, and rollback protocols for IPv6 deployment projects.
  • Serve as a subject matter expert on IPv6 and multicast technologies, mentoring junior engineers and supporting knowledge transfer.

Qualifications

  • Minimum of 7+ years of progressive network engineering experience within enterprise or service provider environments.
  • Demonstrated expertise in IPv6 addressing, routing, and migration strategies.
  • Proven ability to design and operate IPv4/IPv6 dual-stack networks.
  • Strong knowledge of multicast routing protocols such as PIM-SM, IGMP, and MLD in IPv4 and IPv6 contexts.
  • Cisco CCNP (Enterprise or Service Provider) certification or equivalent industry experience.
  • Hands-on experience with Cisco routing and switching platforms, including IOS/IOS-XE.
  • Ability to produce clear, professional network design and test documentation.
  • Experience with routing protocols such as OSPFv2/v3 and BGP (including IPv6 address families).
  • Excellent troubleshooting skills and experience with network monitoring tools like NetFlow and SNMP in IPv6 environments.
  • Effective communication and collaboration skills, with prior experience participating in large-scale IPv6 migration projects.
  • Knowledge of network security policies and compliance frameworks related to IPv6 deployment.

Publishing Pay Range: $60.00 – $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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