Senior Network Security Engineer - Firewall & Segmentation

Commerz Global Service Solutions; Petaling Jaya; On-site; MYR 150,000 - 230,000; Full time

Job summary

Commerz Global Service Solutions in Malaysia is seeking a Senior Network Security Engineer (Firewall) to own complex firewall and VPN security implementations within a global team.

You will implement and operate firewall, VPN, SSL interception and network micro-segmentation services, address security policy and lifecycle management, and contribute to documentation and standards. This role emphasizes technical mastery and ownership with no direct people management.

Qualifications

• Bachelor’s degree or equivalent professional experience in IT/network security.
• Experience with enterprise firewall and secure connectivity technologies.
• Certification in firewall or network security is favorable.

Responsibilities

• Administration and operation of firewall, Site-to-Site VPN, Remote Access/SSL VPN and SSL Interception environments
• Evaluation, technical validation and configuration of firewall policy requests in accordance with security standards and least-privilege principles
• Handling of complex Requests, Incidents, Changes and Problems, including root-cause analysis and coordination of corrective actions
• Planning and implementation of firewall upgrades, lifecycle activities and infrastructure changes with appropriate testing, rollback and documentation
• Advising customers and application teams on secure connectivity, traffic flows and firewall rule design
• Setup and troubleshooting of traffic flows and segmentation policies using Guardicore or equivalent micro-segmentation technology.
• Setup, troubleshooting and maintenance of Site-to-Site VPN connections, including IPSec-related issues
• Performing packet-flow analysis and end-to-end troubleshooting across firewall, routing, proxy, DNS and application dependencies
• Supporting high-availability platforms and participating in service restoration for priority incidents when required
• Reviewing technical implementations and providing practical guidance to less-experienced engineers without formal line-management responsibility
• Communicating with internal departments, global network/security counterparts, external companies and vendors
• Coordinating software maintenance, upgrades and agent rollouts with vendors, server administrators and relevant stakeholders
• Contributing to continuous improvement, automation opportunities, operational controls and reduction of recurring incidents
• Ensuring company guidelines, internal requirements, security standards and change-management controls are followed
• Maintaining accurate technical documentation, operational procedures, knowledge articles and configuration records

Skills

Network security principles

Firewall technology

VPN/SSL interception

Analytical troubleshooting

Stakeholder communication

Education

Bachelor’s degree in Information Technology, Computer Science, Network Engineering or related discipline

Firewall or network-security certification (Fortinet/Cisco or equivalent)

Tools

Guardicore

VMware

Wireshark

ArcSight

Job description

Commerz Global Service Solutions in Malaysia is seeking a Senior Network Security Engineer (Firewall) to own complex firewall and VPN security implementations within a global team.

You will implement and operate firewall, VPN, SSL interception and network micro-segmentation services, address security policy and lifecycle management, and contribute to documentation and standards. This role emphasizes technical mastery and ownership with no direct people management.