Manager, Firewall & Load Balancer Administrator

Dah Sing Bank; Hong Kong; On-site; HKD 420,000 - 660,000; Full time

Job summary

Dah Sing Bank is seeking an experienced IT security and infrastructure professional to manage enterprise firewall and load balancer environments in Hong Kong.

You will implement security policies, monitor systems, and coordinate with vendors for upgrades and DR drills, ensuring compliance and reliable cross-border connectivity.

Qualifications

• Bachelor’s degree or higher in CS/IT or related field.
• 5–8 years of firewall, load balancer, and infra operations experience.
• Hands-on with Palo Alto, Checkpoint, F5 BIG-IP, VPNs, ACLs; FireMon for policy management.
• Strong patching, upgrades, capacity planning, and DR knowledge.
• Familiar with audits, compliance, and cross-border data regulations.
• Excellent problem-solving, communication, and documentation skills.
• Banking industry experience preferred.

Responsibilities

• Manage and maintain enterprise firewalls across data centers, offices, and branches.
• Enforce network security policies, ACLs, and VPN configurations.
• Monitor firewall logs and alerts to detect threats.
• Support connectivity between HK and Mainland China branches.
• Administer load balancing platforms for high availability.
• Configure SSL offloading and traffic distribution; troubleshoot delivery.
• SNMP-based monitoring and capacity planning.
• Perform firmware upgrades and patch management.
• Maintain audit docs and compliance reviews.
• DR failover procedures and annual DR drills.
• Incidence response: first-line for firewall/load balancer issues.
• Coordinate infrastructure projects; liaise with vendors.
• Cross-border data transmission compliance awareness.

Skills

Firewall administration

Load balancer management

Infrastructure operations

Palo Alto

Checkpoint

F5 BIG-IP

VPNs & ACLs

FireMon

Patch management

Disaster recovery planning

Security auditing/compliance

Cross-border data regulations

Analytical thinking

Communication skills

Team collaboration

Banking domain experience

Education

Bachelor's degree in Computer Science/Information Technology

Tools

Palo Alto

Checkpoint

F5 BIG-IP

FireMon

Job description

• 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

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

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.

Please note that only shortlisted candidates will be notified.