Network Firewall Engineer II

GECO Asia Pte. Ltd; Pasay; On-site; PHP 600,000 - 900,000; Full time

Job summary

GECO Asia Pte. Ltd. is seeking a Network Firewall Engineer – Tier II to maintain and optimize enterprise network security and Palo Alto deployments.

You will configure, manage, and troubleshoot firewalls within a complex environment, and participate in incident response and root-cause analysis. The role requires 5–7 years of hands-on Palo Alto experience, PCNSE/PCNSA certification, and strong skills in packet capture, log analysis, and collaboration with cross-functional teams to strengthen

Qualifications

• Bachelor's degree in Computer Science, IT, or related field, or equivalent practical experience.
• 5–7 years hands-on experience with Palo Alto firewalls, routing and switching, and Cisco security technologies.
• PCNSE or PCNSA certification required; CCNA/CCNP Security is a plus.
• Experience with packet capture, log management, monitoring and troubleshooting tools (Wireshark, Splunk, Syslog, ServiceNow, Netcool, SevOne).

Responsibilities

• Configure, manage, and troubleshoot Palo Alto Networks firewalls within a complex enterprise environment.
• Monitor and respond to network security events, incidents, and escalations as a Tier II support resource.
• Perform firewall policy management, security rule reviews, and change implementations.
• Support network routing, switching, and Cisco security technologies to ensure optimal network performance and security.
• Investigate and resolve network and security issues using tools such as Wireshark, Splunk, Syslog, ServiceNow, Netcool, and SevOne.
• Collaborate with engineering, operations, and security teams to implement best practices and strengthen network security posture.
• Document technical procedures, incident resolutions, and infrastructure changes.
• Participate in incident response, root cause analysis, and continuous improvement initiatives.

Skills

PCNSE/PCNSA certification

CCNA/CCNP Security

Strong analytical troubleshooting

Education

Bachelor's degree in Computer Science / IT or related field

Tools

Wireshark

Splunk

Syslog

ServiceNow

Netcool

SevOne

Job description

Network Firewall Engineer – Tier II

Are you an experienced Network Security professional with strong expertise in Palo Alto firewalls and enterprise network operations? We're looking for a Network Firewall Engineer – Tier II to join our team and help maintain, secure, and optimize mission-critical network infrastructure.

Key Responsibilities

• Configure, manage, and troubleshoot Palo Alto Networks firewalls within a complex enterprise environment.
• Monitor and respond to network security events, incidents, and escalations as a Tier II support resource.
• Perform firewall policy management, security rule reviews, and change implementations.
• Support network routing, switching, and Cisco security technologies to ensure optimal network performance and security.
• Investigate and resolve network and security issues using tools such as Wireshark, Splunk, Syslog, ServiceNow, Netcool, and SevOne.
• Collaborate with engineering, operations, and security teams to implement best practices and strengthen network security posture.
• Document technical procedures, incident resolutions, and infrastructure changes.
• Participate in incident response, root cause analysis, and continuous improvement initiatives.

Qualifications

• Palo Alto Networks Certified Network Security Engineer (PCNSE) or Palo Alto Networks Certified Network Security Administrator (PCNSA) is required.
• CCNA or CCNP Security certification is an advantage.
• Bachelor's degree in Computer Science, Information Technology, or a related field, or equivalent practical experience.
• 5 to 7 years of hands‑on experience working with Palo Alto Networks firewalls, network routing and switching, and Cisco security technologies.
• Strong experience with packet capture analysis, log management, monitoring, and troubleshooting tools including Wireshark, Splunk, Syslog, ServiceNow, Netcool, and SevOne.
• Strong analytical and troubleshooting skills with the ability to diagnose and resolve complex network security issues.
• Excellent communication and collaboration skills in a fast-paced operational environment.