Senior Network Security Engineer

SENIOR NETWORK ENGINEER (DATA CENTER / NETWORK SECURITY)

Location: Dallas, TX (Hybrid) – Relocation Available

Type: Direct Hire

• Competitive base salary + performance bonus

• 100% company-paid benefits

MUST BE GREENCARD OR US CITIZENS

OVERVIEW

We are seeking a Senior Network Engineer to join a Network & Security Platform team responsible for a global network footprint across data center, co-location, and enterprise environments.

This role is heavily focused on securing and optimizing large-scale data center networks supporting high-performance compute and mission-critical workloads. The position combines deep networking expertise with hands-on responsibility for network security controls, including firewalls, segmentation, proxy services, and load balancing within complex, multi-tenant environments.

The ideal candidate is a network engineer with strong security experience—someone who understands how to design, implement, and operate secure, high-performance network infrastructure at scale.

KEY RESPONSIBILITIES

Network Engineering & Operations

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

• Operate across routing, switching, firewall, and WAN environments

• Lead troubleshooting and resolution of complex network and security-related issues

Data Center Networking & Architecture

• Implement architectures leveraging EVPN, VXLAN, and MPLS

• Support WAN environments including SD-WAN and segment routing

• Work across Cisco and Arista platforms (IOS, IOS-XR, NX-OS, EOS)

Network Security Engineering

• Design and manage network security controls within data center environments

• Configure and support firewalls, load balancers, proxies, and segmentation strategies

• Implement multi-tenant network isolation and secure connectivity patterns

• Partner with security teams to align on policies, standards, and risk mitigation

Automation & DevOps

• Automate network and security operations using Python, Ansible, Git, and Jinja2

• Support Infrastructure-as-Code (IaC) and CI/CD for network provisioning

• Improve operational efficiency through automation and tooling

Monitoring, Performance & Reliability

• Monitor network and security health using telemetry and observability tools

• Perform packet analysis, performance tuning, and root cause analysis

• Conduct audits to ensure compliance with standards and best practices

Collaboration & Leadership

• Partner with Data Center, Security, and Infrastructure teams

• Support high-performance compute environments (HPC/AI workloads where applicable)

• Mentor junior engineers and lead during incident response scenarios

REQUIRED EXPERIENCE

• Experience supporting large-scale data center or enterprise networks

• Strong hands-on experience with Cisco and Arista platforms

• Deep knowledge of BGP, OSPF, EVPN, VXLAN, and MPLS

• Experience with network security technologies (firewalls, proxies, load balancers, segmentation)

• Experience supporting WAN technologies (SD-WAN, segment routing, multi-tenant environments)

• Strong troubleshooting skills including packet analysis and performance optimization

• Experience working in Agile or DevOps environments

TECHNICAL SKILLS

• Python, Ansible, Git, Jinja2

• Network monitoring, telemetry, and observability platforms

• Infrastructure-as-Code (IaC) and CI/CD practices

PREFERRED

• Experience with InfiniBand or HPC environments

• CCNP or equivalent required; CCIE or advanced certifications preferred

• Experience supporting secure, high-performance data center environments