Senior L3 Network Engineer – Remote (Aruba, Palo Alto)

Hamilton Barnes ?; Philippines; Remote; PHP 900,000 - 1,200,000; Full time

Job summary

Hamilton Barnes is seeking an experienced L3 Network Engineer to support enterprise customers remotely from the Philippines. The role focuses on advanced network troubleshooting, escalations, and delivering Aruba-based networking and security solutions.

The candidate should have strong Aruba switching and wireless skills, plus enterprise firewall experience with Palo Alto or Fortinet/FortiGate, and a solid understanding of routing protocols like BGP and OSPF.

Qualifications

• 3+ years in L3 Network Engineering or Network Security role.
• Hands-on Aruba switching and wireless deployment.
• Experience with enterprise firewall platforms and VPNs.
• Ability to troubleshoot complex LAN/WAN issues and document solutions.
• Experience supporting multiple enterprise customers in MSP/MSSP environments.

Responsibilities

• Provide L3 technical support and own complex network escalations.
• Configure, manage and troubleshoot Aruba networking across networks.
• Support Palo Alto/FortiGate firewalls and security policies.
• Troubleshoot LAN, WAN, WLAN, routing and switching issues.
• Manage VPNs, NAT, and security configurations.
• Perform root cause analysis and implement fixes.
• Assist upgrades, migrations and technology refresh projects.
• Work with customers and internal teams to resolve challenges.
• Maintain network diagrams and configuration records.

Skills

Aruba networking

Palo Alto firewall

Fortinet FortiGate

BGP OSPF

LAN/WAN/WLAN

VPN and NAT

L3 escalation handling

Network documentation

Education

Aruba certification paths

Palo Alto PCNSA/PCNSE

Fortinet NSE or FCP

Cisco CCNA/CCNP

Job description

Hamilton Barnes is seeking an experienced L3 Network Engineer to support enterprise customers remotely from the Philippines. The role focuses on advanced network troubleshooting, escalations, and delivering Aruba-based networking and security solutions.

The candidate should have strong Aruba switching and wireless skills, plus enterprise firewall experience with Palo Alto or Fortinet/FortiGate, and a solid understanding of routing protocols like BGP and OSPF.