Firewall & Load Balancer Administrator

Main Responsibilities

Firewall Administration​

• Manage and maintain enterprise firewalls (e.g., Palo Alto, Checkpoint, F5) across data centers, offices, and branches. ​
• Implement and enforce network security policies, access control lists (ACLs), and VPN configurations. ​
• Monitor firewall logs and alerts to detect and respond to potential threats. ​
• Support secure and reliable connectivity between Hong Kong and Mainland China branches. ​

​Load Balancer Management​

• Administer load balancing platforms (e.g., F5 BIG-IP) to ensure high availability and performance of critical applications. ​
• Configure and optimize load balancing rules, SSL offloading, and traffic distribution. ​
• Troubleshoot application delivery issues and coordinate with application and infrastructure teams. ​

System Monitoring and Capacity Planning​

• Configure and support SNMP messaging for system monitoring integration. ​
• Monitor system performance and resource usage to support proactive planning. ​
• Provide annual capacity planning reports covering system utilization and growth forecasts. ​

Patch And Upgrade​

• Perform firmware and software upgrades and patch management to address end-of-support and security vulnerabilities. ​
• Upgrade any legacy End-of-Support (EOS) hardware and software components to ensure continued vendor support and system reliability​

Governance & Reporting​

• Maintain documentation for audits and compliance reviews. ​
• Conduct System Acceptance Testing (SAT) and user account reviews on a semi-annual basis. ​
• Ensure compliance with cross-border data transmission regulations and internal security standards. ​

Disaster Recovery & Resilience​

• Setup and maintain configuration backup to ensure recoverability. ​
• Prepare and maintain system disaster recovery (DR) failover procedures. ​
• Activate and support DR systems during annual DR drills. ​
• Incident & Problem Management​

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• Act as first-line response for firewall and load balancer-related incident resolution efforts, perform root cause analysis, and implement preventive and corrective actions. ​

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Project & Change Management​

• Coordinate in infrastructure projects involving firewall and load balancer deployments or upgrades. ​
• Liaise with vendors for procurement, installation, support of relevant hardware and software.​

Qualifications

• Bachelor's degree or above in Computer Science, Information Technology, or a related field.
• Minimum of 5-8 years of experience in firewall administration, load balancer management, and infrastructure operations.
• Hands-on experience with Palo Alto, Checkpoint, F5 BIG-IP, VPNs, ACLs, and FireMon for firewall policy management.
• Strong knowledge of patching, system upgrades, capacity planning, and disaster recovery.
• Familiar with audit support, compliance standards, and cross-border data regulations.
• Strong problem-solving and analytical skills.
• Excellent communication and documentation abilities.
• Ability to work independently and collaboratively in a team environment.
• Prior experience working in the banking industry is preferred.