Senior Network Engineer (IS&T)

Job ID: 113931

Location: Austin, Texas [On-Site]

Category: Infrastructure

Employment Type: Contract

Date Added: 11/06/2026

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Role Summary

This is a senior-level Network Architect / Senior Network Engineer role focused on planning, designing, and deploying large-scale SD-Access fabric and spine/leaf campus network environments. The position leads deployment readiness, configuration development, IPv4-to-IPv6 migration planning, and post-migration stabilization for enterprise network modernization initiatives. The ideal candidate brings hands-on implementation experience, strong troubleshooting skills, and the ability to translate high-level network architecture into detailed, repeatable deployment standards. Success in this role requires clear communication, disciplined documentation, and effective collaboration during complex or high-pressure migration activities.

Responsibilities

• Lead end-to-end deployment planning for SD-Access fabric, spine/leaf, and enterprise campus network modernization projects.
• Translate high-level designs into deployment-ready low-level designs, implementation plans, configuration standards, and site deployment models.
• Develop and execute phased IPv4-to-IPv6 migration strategies, including dual-stack, phased transition, and native IPv6 approaches.
• Create configuration templates for underlay and overlay routing, segmentation, policy enforcement, quality of service, and application-aware routing.
• Develop Method of Procedure documents, deployment runbooks, rollback plans, validation checklists, and post-cutover verification procedures.
• Identify deployment risks, define mitigation strategies, and establish success criteria for each migration phase.
• Provide real-time technical support during migration activities, pilot deployments, cutovers, and post-migration stabilization.
• Troubleshoot routing, segmentation, IPv6 connectivity, VXLAN, RADIUS authentication, wired and wireless access, and service restoration issues.
• Collaborate with engineering, operations, field deployment, project management, vendor, and stakeholder teams to drive successful outcomes.
• Review field feedback and improve deployment standards, technical documentation, governance processes, and operational handoffs.

Qualifications

• 8+ years of enterprise networking experience with demonstrated real-world implementation responsibility.
• Hands-on experience with SD-Access fabric, software-defined campus solutions, or large-scale spine/leaf network deployments.
• Proven ability to convert network architecture and design intent into implementation-ready documentation, configuration standards, and deployment runbooks.
• Production experience leading or supporting IPv6 deployments and migration initiatives.
• Strong knowledge of BGP, OSPF, underlay and overlay architecture, route redistribution, failover, and route control.
• Practical experience with VXLAN, EVPN-VXLAN, segmentation, VRFs, VLANs, and policy enforcement.
• Experience with RADIUS, network access authentication, and wired and wireless access scenarios.
• Ability to troubleshoot live deployment issues, validate service restoration, perform root-cause analysis, and communicate resolution steps clearly.
• Strong technical writing, stakeholder communication, structured troubleshooting, and scenario-based problem-solving skills.
• Experience with large-scale, multi-site network rollouts; Cisco Catalyst Center / DNA Center, Cisco ISE, Catalyst 9000, Nexus, Arista, Palo Alto Networks, Opengear, Python, Ansible, Terraform, or configuration templating is beneficial. Relevant education, training, certifications, or equivalent practical experience.

Publishing Pay Range: $70.00 - $86.00 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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