Network Engineer

CornerStone Technology Talent Services; Phoenix (AZ); On-site; USD 90,000 - 120,000; Full time

Job summary

CornerStone Technology Talent Services in Phoenix, AZ is seeking an experienced Network Engineer II to design, implement, and support large-scale enterprise networking and security infrastructure. The role focuses on Palo Alto firewalls, VPN connectivity, SD-WAN, and robust LAN/WAN operations across multiple locations.

The ideal candidate will have hands-on firewall management, routing/switching expertise, and a track record in regulated environments.

Qualifications

• 6+ years in Network Operations, Network Engineering, or Data Center environments.
• 4+ years managing Palo Alto Firewalls.
• Strong hands-on VPN configuration, implementation, and troubleshooting.
• Advanced understanding of enterprise routing and switching in highly available datacenters.
• Experience with regulated environments (SOX, PCI, SSAE, NCUA, FDIC).

Responsibilities

• Implement, maintain, and troubleshoot highly available enterprise network and security infrastructure.
• Configure and manage Palo Alto firewalls and security policies.
• Implement and support site-to-site, client, and vendor VPN connectivity.
• Troubleshoot complex VPN, routing, connectivity, latency, and network-performance issues.
• Support enterprise LAN/WAN environments and a multi-carrier WAN across 50+ locations.
• Coordinate network security controls within a regulated enterprise environment.
• Monitor network availability, security, and performance; remediate issues proactively.

Skills

Palo Alto

VPN

Enterprise networking

Routing & Switching

Security policies

Wireshark

SOX/PCI familiarity

Tools

Panorama

VMware NSX

Load Balancers

Wireshark

Job description

Network Engineer II – Palo Alto & Enterprise Networking

Location: Phoenix, AZ

Work Model: Onsite

Employment Type: Full-Time Direct hire only **no C2C**

Local Candidates Only:

Candidates must currently reside in the Greater Phoenix area.

**Not accepting 3rd party candidates and Sponsorship is not available for this opportunity.**

Position Overview

We are seeking an experienced Network Engineer II with strong hands‑on expertise in Palo Alto firewalls, VPN technologies, and enterprise networking protocols.

This is a hands‑on network engineering role supporting highly available, secure, and regulated datacenter and distributed network environments. The engineer will support LAN/WAN infrastructure, Palo Alto security, client and vendor VPN connectivity, SD-WAN, routing and switching, and a multi‑carrier WAN supporting 50+ locations.

Critical Technical Requirements

Candidates must demonstrate strong, recent hands‑on experience with:

• VPN implementation and troubleshooting
• Enterprise routing and switching protocols
• LAN/WAN architecture and troubleshooting
• Highly available datacenter networking
• Cisco networking technologies

Key Responsibilities

• Implement, maintain, and troubleshoot highly available enterprise network and security infrastructure.
• Configure and manage Palo Alto firewalls and security policies.
• Implement and support site‑to‑site, client, and vendor VPN connectivity.
• Troubleshoot complex VPN, routing, connectivity, latency, and network‑performance issues.
• Support enterprise LAN/WAN environments and a multi‑carrier WAN connecting 50+ locations and external clients.
• Apply advanced networking protocols to improve scalability, resiliency, and performance.
• Support Cisco IOS, VMware networking, load balancers, wireless infrastructure, and SD‑WAN.
• Monitor network availability, security, and performance and proactively remediate issues.
• Support disaster recovery and highly available network architectures.
• Coordinate network security controls within a regulated enterprise environment.

Required Experience

• 6+ years of Network Operations, Network Engineering, or Data Center experience.
• 4+ years managing Palo Alto Firewalls.
• Strong hands‑on VPN configuration, implementation, and troubleshooting experience.
• Advanced understanding of enterprise routing and switching protocols in highly available datacenter environments.
• Experience supporting enterprise LAN/WAN environments.
• Strong knowledge of network security architecture and firewall policy management.
• Experience with troubleshooting tools such as Wireshark and Panorama.
• Experience supporting regulated environments governed by standards such as SOX, PCI, SSAE, NCUA, or FDIC.

Technical Environment

• Panorama
• Enterprise Routing & Switching
• VPN
• LAN/WAN
• SD‑WAN
• VMware NSX
• Load Balancers
• Wireless Networking
• Wireshark
• vRealize Network Insight

The position specifically requires advanced routing/switching knowledge, VMware NSX expertise, Palo Alto security-policy experience, and network troubleshooting capabilities.

Certifications

Palo Alto certification is a major requirement. An exception may be considered for a highly experienced Palo Alto engineer who can obtain the required certification within 90 days.

Cisco CCNA, CCNP, or CCIE is also required, along with Cisco VoIP or other applicable technical certification requirements.

Ideal Candidate

The strongest candidate will be a true enterprise network engineer with security depth, someone who can confidently configure and troubleshoot Palo Alto, VPNs, routing, switching, WAN connectivity, and advanced networking protocols rather than simply monitor or escalat network issues.