Overview

Network Security Engineer Jobs in Sydney, New South Wales, Australia at Kaizen Global Technologies

Title: Network Security Engineer

Company: Kaizen Global Technologies

Location: Sydney, New South Wales, Australia

Experience: 10+ years

Location: Sydney, Australia – Hybrid

Eligibility: Candidates must have the right to work in Australia (Citizen, PR, Valid Visa holders).

Key Responsibilities:

  • Analyse firewall configurations to identify and remediate non-compliant or overly permissive rules (e.g., wide port ranges, insecure protocols, broad network access).
  • Design and implement secure, granular firewall policies aligned with enterprise security standards.
  • Execute firewall rule changes using controlled workflows with zero disruption to business-critical applications.
  • Support security audits by providing remediation evidence, documentation, and compliance reporting.
  • Track and improve security compliance metrics across environments.
  • Collaborate with application owners, infrastructure, and security teams to validate requirements and obtain change approvals.
  • Contribute to automation and continuous improvement of firewall remediation processes and tools.
  • Act as escalation point for complex network security and firewall issues.

Technical Skills:

  • Strong hands-on experience with enterprise firewalls (Juniper SRX, Fortinet, VMware NSX).
  • Expertise in firewall rule analysis, design, and implementation.
  • Strong networking knowledge (BGP, OSPF, VXLAN, VTP, BFD).
  • Experience with IPS/IDS policy configuration and security event analysis.
  • Exposure to logging and monitoring tools (Splunk, Elastic, SolarWinds, ThousandEyes, Netscout, Accedian).
  • Scripting/automation skills (Python, Ansible, JSON, etc.).
  • Experience in low-level network security design in enterprise environments.

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