Senior Network Engineer

Gdh Consulting, Inc.; Whippany (NJ); On-site; USD 90,000 - 103,000; Full time

Job summary

GDH Consulting, Inc. is seeking a network migration engineer to lead end-to-end switch replacements and migrations in data center and co-location environments. You will configure, validate, and troubleshoot Arista and Cisco switches, manage change windows, and ensure minimal service disruption.

You will work with BGP, multicast protocols (PIM/SSM/IGMP), and Layer 2/3 networking, performing pre- and post-migration validation and documenting procedures for operational continuity.

Qualifications

• Extensive experience with network hardware refreshes and migrations, particularly involving Arista switches such as the 7150, 7060, or 7130 series.
• Hands-on experience with BGP, multicast technologies including PIM, SSM, and IGMP, Layer 2/3 networking, and troubleshooting in production environments.
• Experience working within data center or co-location environments.
• Ability to perform physical switch replacements, cabling, and hardware troubleshooting.
• Strong knowledge of change management, network validation, rollback planning, and troubleshooting.
• Availability to work scheduled weekend change windows as required.
• Relevant education, training, certifications, or equivalent practical experience.
• Strong technical communication skills with the ability to collaborate effectively with technical and non-technical stakeholders.

Responsibilities

• Execute the replacement and migration of end-of-life Arista and Cisco network switches across data center and co-location environments.
• Manage and validate customized switch configurations within scheduled change windows.
• Maintain and troubleshoot external network connectivity to support reliable operations.
• Configure and troubleshoot BGP, multicast technologies including PIM, SSM, and IGMP, and Layer 2/3 networking protocols.
• Coordinate physical switch replacements, cabling, and hardware installation within data center and co-location environments.
• Execute migration activities in accordance with established change management, validation, and rollback procedures.
• Perform pre- and post-migration validation to confirm successful implementations and network functionality.
• Independently troubleshoot complex network issues and escalate when appropriate.
• Collaborate with external partners and internal engineering teams to coordinate network activities and communicate technical status.
• Document migration procedures, validation results, configurations, and troubleshooting activities to support operational continuity.

Skills

Arista switches

Cisco switches

BGP

PIM/SSM/IGMP

Layer 2/3 networking

Troubleshooting in production

Weekend shift availability

Technical communication

Education

Relevant education/certifications

Tools

Arista 7150/7060/7130

Cisco data center gear

Job description

Role Summary

This position leads and executes network switch migration and refresh initiatives within high-availability, mission-critical environments. The role is responsible for end-to-end hardware replacements, configuration, connectivity, and network validation while minimizing service disruption. This position requires strong technical expertise, independent troubleshooting skills, and the ability to work within scheduled change windows.

Responsibilities

• Execute the replacement and migration of end-of-life Arista and Cisco network switches across data center and co-location environments.
• Manage and validate customized switch configurations within scheduled change windows.
• Maintain and troubleshoot external network connectivity to support reliable operations.
• Configure and troubleshoot BGP, multicast technologies including PIM, SSM, and IGMP, and Layer 2/3 networking protocols.
• Coordinate physical switch replacements, cabling, and hardware installation within data center and co-location environments.
• Execute migration activities in accordance with established change management, validation, and rollback procedures.
• Perform pre- and post-migration validation to confirm successful implementations and network functionality.
• Independently troubleshoot complex network issues and escalate when appropriate.
• Collaborate with external partners and internal engineering teams to coordinate network activities and communicate technical status.
• Document migration procedures, validation results, configurations, and troubleshooting activities to support operational continuity.

Qualifications

• Extensive experience with network hardware refreshes and migrations, particularly involving Arista switches such as the 7150, 7060, or 7130 series.
• Hands-on experience with BGP, multicast technologies including PIM, SSM, and IGMP, Layer 2/3 networking, and troubleshooting in production environments.
• Experience working within data center or co-location environments.
• Ability to perform physical switch replacements, cabling, and hardware troubleshooting.
• Strong knowledge of change management, network validation, rollback planning, and troubleshooting.
• Availability to work scheduled weekend change windows as required.
• Relevant education, training, certifications, or equivalent practical experience.
• Strong technical communication skills with the ability to collaborate effectively with technical and non-technical stakeholders.
• Must be authorized to work in the location where the position is based.

Pay Range

Publishing Pay Range: $65.00 - $75.00 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

• 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.

Equal Employment Opportunity

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.