L3 Network Engineer

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

Location: Philippines

Working Arrangement: Fully Remote

About the Opportunity

An established technology solutions provider is looking for an experienced L3 Network Engineer to join its technical team, supporting enterprise customers across a range of complex network infrastructure and security environments.

This is a hands on engineering position focused on advanced network troubleshooting, technical escalations and the delivery of enterprise networking and security solutions.

The successful candidate will bring strong experience across Aruba networking technologies alongside enterprise firewall platforms such as Palo Alto or Fortinet.

Key Responsibilities

• Provide Level 3 technical support and ownership of complex network infrastructure escalations.
• Configure, manage and troubleshoot Aruba networking technologies across enterprise environments.
• Support enterprise firewall platforms, particularly Palo Alto Networks and Fortinet/FortiGate.
• Troubleshoot complex LAN, WAN, wireless, routing and switching issues.
• Manage firewall configurations, security policies, VPNs and network connectivity.
• Investigate network performance issues, conduct root cause analysis and implement corrective solutions.
• Support network infrastructure upgrades, deployments, migrations and technology refresh projects.
• Work directly with enterprise customers and internal technical teams to resolve complex infrastructure challenges.
• Maintain technical documentation, network diagrams and configuration records.

Skills and Experience

• Strong hands on experience in an L3 Network Engineering or Network Security Engineering position.
• Practical experience with Aruba networking technologies, including switching and wireless infrastructure.
• Strong enterprise firewall experience with Palo Alto Networks, Fortinet or FortiGate.
• Solid understanding of routing and switching protocols, including BGP, OSPF, VLANs and TCP/IP.
• Experience with LAN, WAN, WLAN and enterprise network infrastructure.
• Strong knowledge of firewall policies, VPNs, NAT and network security principles.
• Proven ability to troubleshoot complex technical issues and manage L3 escalations independently.
• Experience supporting multiple enterprise customers within an MSP, MSSP, systems integrator or professional services environment is advantageous.

Desirable Certifications

• Aruba networking certifications.
• Palo Alto Networks PCNSA or PCNSE.
• Fortinet NSE or FCP certifications.
• Cisco CCNA or CCNP.

Working Arrangements

• Fully remote position based in the Philippines.
• Working hours aligned to 8:00am to 5:00pm US Central Time.
• Exposure to multiple enterprise customer environments.
• Hands on technical role focused on complex network infrastructure and security challenges.