Senior Network Engineer - Data Center & Hybrid Environments

Senior Network Engineer

Location: Dallas, TX | Hybrid

Relocation: Available for non-local candidates

Type: Direct Hire

Compensation

Base salary + performance bonus

Benefits: 100% company-paid benefits

Overview

GTN is seeking a Senior Network Engineer to join a Network and Security Platform Management team responsible for a global network footprint spanning office, data center, and co-location environments.

This role focuses on ensuring performance, scalability, and resilience across large-scale data center networks supporting complex compute, research, and high-performance infrastructure workloads. The Senior Network Engineer will play a key role in implementing modern networking solutions, driving automation, improving reliability, and supporting highly available infrastructure in a fast-paced, mission-critical environment.

The ideal candidate brings deep expertise in data center networking, strong hands-on experience with Cisco and Arista technologies, and a passion for automation, troubleshooting, and continuous improvement.

Key Responsibilities

Network Engineering & Operations

• Design, implement, and maintain scalable, resilient data center network infrastructure

• Support enterprise, data center, and co-location environments across routing, switching, firewall, and WAN domains

• Lead troubleshooting and break/fix efforts for complex network issues across global infrastructure

• Support highly available network environments where uptime, performance, and operational discipline are critical

Data Center Networking & Architecture

• Implement and manage data center network architectures leveraging EVPN, VXLAN, MPLS, and modern routing protocols

• Support WAN environments including SD-WAN, segment routing, and multitenant network designs

• Work hands-on with Cisco and Arista platforms across IOS, IOS-XR, NX-OS, and EOS

• Contribute to network design reviews, standards, documentation, and architecture improvements

Automation & DevOps

• Automate network operations using tools such as Python, Ansible, Git, and Jinja2

• Support Infrastructure-as-Code practices and CI/CD pipelines for network provisioning and configuration management

• Improve operational efficiency through automation, tooling, repeatable processes, and documentation

• Partner with engineering teams to reduce manual work and improve network deployment consistency

Monitoring, Performance & Reliability

• Monitor and proactively manage network health using telemetry and observability platforms

• Perform packet analysis, performance tuning, and root cause analysis for network issues

• Conduct regular audits to ensure compliance with internal standards, operational procedures, and best practices

• Identify reliability gaps and help drive improvements across performance, resiliency, and scalability

Cross-Functional Collaboration

• Partner with Data Center, Security, DevOps, Platform, and Infrastructure teams to align on network architecture and operations

• Collaborate with engineering teams to deliver high-quality designs and support rollout of strategic initiatives

• Support large-scale compute environments, including HPC infrastructure where applicable

• Communicate technical issues clearly to both engineering and operational stakeholders

Leadership & Mentorship

• Mentor junior engineers and promote knowledge sharing across the team

• Act as a technical leader during incident response and critical troubleshooting scenarios

• Help establish standards, best practices, and repeatable processes for network operations and engineering

Required Experience

• Proven experience designing, implementing, and supporting large-scale enterprise or data center networks

• Strong hands-on expertise with Cisco and Arista networking platforms, including IOS, IOS-XR, NX-OS, and EOS

• Deep understanding of routing and switching protocols including BGP, OSPF, EVPN, VXLAN, and MPLS

• Experience supporting WAN technologies including SD-WAN, segment routing, and multitenant environments

• Strong troubleshooting skills, including packet analysis, performance optimization, and root cause analysis

• Experience working in Agile, DevOps-oriented, or infrastructure automation environments

• Ability to operate effectively in fast-paced, mission-critical environments

Technical Skills

• Network automation experience using Python, Ansible, Jinja2, and Git

• Experience with network monitoring, telemetry, and observability platforms

• Familiarity with Infrastructure-as-Code and CI/CD practices

• Strong understanding of data center networking, routing, switching, WAN, and network reliability principles

Preferred Experience

• Experience with InfiniBand networking and large-scale HPC environments

• CCNP or equivalent certification preferred; CCIE or advanced certifications a strong plus

• Experience supporting high-performance, research-driven, AI/ML, or large-scale compute environments

• Exposure to security, segmentation, firewall, or load-balancing technologies in data center environments