Network Security / Firewall Engineer

About the role

Job Title: Network Security /Firewall Engineer Monthly Salary: $9,500 - $13,500 SGD Location: Singapore Employment Type: Full-time, Permanent Roles & Responsibilities Manage enterprise firewall infrastructure (Palo Alto, Fortinet, or Cisco ASA) Implement and maintain firewall rule lifecycle (requests, changes, reviews, clean-up) Design and maintain network segmentation and micro-segmentation strategies Implement and support NAC (Network Access Control) solutions (Cisco ISE, Aruba ClearPass) Deploy and manage ZTNA (Zero Trust Network Access) solutions (Zscaler, etc.) Manage SSL/TLS certificate lifecycle for network infrastructure Review and approve firewall change requests based on security posture Perform firewall rule audits and optimization Investigate security alerts from firewalls and IDS/IPS systems Maintain documentation of network security architecture and processes Participate in security incident response related to network infrastructure Stay current with emerging threats and security technologies Job Requirements Bachelor's Degree in Information Security, Computer Science, or related field Minimum 8 years of experience in network security engineering PCNSE (Palo Alto) or NSE 7 (Fortinet) certification required Deep understanding of TCP/IP, stateful inspection, and application identification Experience with ZTNA architectures and implementation Knowledge of NAC solutions and 802.1X Understanding of crypto protocols (IPsec, SSL/TLS) Scripting ability for automation (Python, PowerShell) preferred Strong analytical and problem-solving skills Singaporeans and PRs are encouraged to apply.

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