Cybersecurity Engineer (Web Application Firewall) | Contract

ZENITH INFOTECH (S) PTE LTD.; Singapore; On-site; SGD 90,000 - 130,000; Full time

Benefits offered by this job

18 days Annual Leave

14 days Medical Leave

Medical Insurance

Job summary

Zenith Infotech (S) Pte Ltd in Singapore seeks a Cybersecurity Engineer (Web Application Firewall) to support daily security operations, focusing on firewall, WAF, SIEM, vulnerability management and security monitoring across enterprise systems.

You will administer Palo Alto firewalls and WAF policies, monitor SIEM dashboards, onboard logs, generate reports, and collaborate with infrastructure and development teams to strengthen protections.

Qualifications

• Diploma or Degree in Computer Science, Information Technology, Cybersecurity, Information Security, or related field.
• 2–5 years of experience in cybersecurity operations, network security, or security engineering.
• Hands-on experience administering Palo Alto firewalls and Web Application Firewall (WAF) technologies.
• Experience operating SIEM platforms such as Splunk, Microsoft Sentinel, QRadar, or ArcSight.

Responsibilities

• Administer and maintain firewalls, Web Application Firewalls (WAF), and network security infrastructure to ensure system protection and availability.
• Implement firewall and WAF policy changes, perform rule reviews, software upgrades, patching, and tuning to optimize security controls.
• Monitor firewall, WAF, and SIEM platforms to detect security events and operational issues promptly.
• Support SIEM operations by onboarding logs, monitoring agent health, maintaining dashboards, and managing alerts to enhance threat detection.
• Manage the vulnerability lifecycle by tracking remediation efforts and generating reports to reduce security risks.
• Review security findings and recommend remediation actions or compensating controls to mitigate vulnerabilities.
• Troubleshoot firewall, WAF, and network security issues to maintain continuous protection and performance.
• Prepare detailed security reports, dashboards, and technical documentation to communicate security posture.
• Collaborate with infrastructure, application, and project teams to implement and enforce cybersecurity controls effectively.

Skills

Cybersecurity operations

Network security

Security engineering

Education

Diploma or Degree in Computer Science, Information Technology, Cybersecurity, Information Security, or related field

Tools

Palo Alto firewalls

WAF technologies

Splunk

Microsoft Sentinel

QRadar

ArcSight

Job description

Company Overview

Zenith Infotech (S) Pte Ltd. was started in 1997 to provide advanced IT professionals and solutions that boost productivity and competitiveness. It supports clients with staff augmentation for long‑term projects across IT companies, consulting firms, system integrators, government, and MNCs.

Job Summary

We are seeking a Cybersecurity Engineer (Web Application Firewall) to support daily cybersecurity infrastructure operations, focusing on firewall, WAF, SIEM, vulnerability management, and security monitoring to protect enterprise systems.

Responsibilities

• Administer and maintain firewalls, Web Application Firewalls (WAF), and network security infrastructure to ensure system protection and availability
• Implement firewall and WAF policy changes, perform rule reviews, software upgrades, patching, and tuning to optimize security controls
• Monitor firewall, WAF, and SIEM platforms to detect security events and operational issues promptly
• Support SIEM operations by onboarding logs, monitoring agent health, maintaining dashboards, and managing alerts to enhance threat detection
• Manage the vulnerability lifecycle by tracking remediation efforts and generating reports to reduce security risks
• Review security findings and recommend remediation actions or compensating controls to mitigate vulnerabilities
• Troubleshoot firewall, WAF, and network security issues to maintain continuous protection and performance
• Prepare detailed security reports, dashboards, and technical documentation to communicate security posture
• Collaborate with infrastructure, application, and project teams to implement and enforce cybersecurity controls effectively

Required competencies and certifications

• Diploma or Degree in Computer Science, Information Technology, Cybersecurity, Information Security, or related field
• 2–5 years of experience in cybersecurity operations, network security, or security engineering
• Hands‑on experience administering Palo Alto firewalls and Web Application Firewall (WAF) technologies
• Experience operating SIEM platforms such as Splunk, Microsoft Sentinel, QRadar, or ArcSight

Preferred competencies and qualifications

• Experience in vulnerability management
• Familiarity with Wireshark and tcpdump network analysis tools
• Palo Alto Networks PCNSA certification
• Splunk or Microsoft Sentinel certification
• CompTIA Security+ certification
• ISC2 certifications such as CC, SSCP, CISSP, or equivalent

Other Information

Benefits

• 18 days Annual Leave
• 14 days Medical Leave
• Medical Insurance

Employment Details

• Work Arrangement: Full Onsite/Hybrid (Central Region)
• Working Hours: Monday to Friday, 9:00 AM – 6:00 PM

EA Licence No. 20S0237