IT Security Officer (CDN, WAF, DDoS)

PCCW SOLUTIONS INSYS PTE. LTD.; Singapore; On-site; SGD 90,000 - 150,000; Full time

Job summary

PCCW Solutions Insys PTE. LTD. is seeking an experienced IT Security Officer to manage incidents, assess vulnerabilities, ensure policy compliance, and safeguard IT and network assets.

The role collaborates with internal IT teams and external vendors to uphold cybersecurity posture and compliance requirements. The candidate will lead activities spanning threat monitoring, vulnerability assessments, governance, and secure design, while driving continuous improvement across security operations in

Qualifications

• Bachelor’s degree in computer science, information technology, cybersecurity, or a related discipline.
• Minimum 3 years of experience in Security Operations.

Responsibilities

• Coordinate and manage cybersecurity incidents and elevate critical events as required.
• Conduct information security awareness trainings to foster a security-conscious culture.
• Stay current with emerging threats, vulnerabilities, and threat intelligence related to cloud platforms.
• Disseminate security advisories, threat intelligence reports, and patch recommendations promptly to stakeholders.
• Partake in tabletop exercises, risk management activities, audits and third-party assessments to enhance incident response readiness.
• Collaborate with IT teams and external vendors to implement and maintain security controls and measures.

Skills

Security operations

Incident response

Vulnerability management

SIEM

WAF

EDR

PAM

DAM

Threat intelligence

Education

Bachelor’s degree in Computer Science/IT/Cybersecurity

Tools

SIEM

WAF

AV

EDR

PAM

DAM

Job description

We are seeking an experiencedIT Security Officer (ITSO) to manage incidents, assess vulnerabilities, ensure policy compliance, and safeguard IT and network assets. The ideal candidate will work closely with internal IT teams and external vendors to uphold cybersecurity posture and compliance requirements.

Responsibilities:

CDN, WAF & DDoS Protection (Onboarding, Security Posture and Monitoring)

• Coordinate and liaise for testing of new Akamai features or security modules (App/API Protector and testing Bot Manager Premier) to align with agency’s needs.
• Coordinate and liaise on lifecycle management of web properties, microservices, and APIs routed through the CDN platform.
• Coordinate and liaise of periodic, proactive audits to ensure Akamai configurations remain robust against an evolving threat landscape.
• Coordinate and liaise on analysis of traffic patterns and security dashboards to differentiate between normal user spikes, search engine crawlers, and malicious scanning.

Incident Response & Security Monitoring

• Track, manage, and elevate cybersecurity incidents and critical security threat events as required.
• Conduct information security awareness trainings to cultivate a security-conscious culture among staff.
• Stay current with emerging threats, vulnerabilities, and threat intelligence related to cloud platforms.
• Disseminate security advisories, threat intelligence reports, security directives, and patch recommendations promptly to the relevant stakeholders in the agencies.
• Partake in tabletop exercises, security risk management activities, audits and third-party assessments to enhance incident response readiness.

Security Product Management

• Perform Vulnerability Assessments (Tenable Nessus) on applications (e.g. web client/server, mobile apps), networking and computing devices (e.g. firmware, Operating System).
• Analyse vulnerability scan results, recommend remediation actions, and track resolution status.
• Monitor security events on SIEM (e.g. Splunk, Cortex, ExaBeam), perform event triage and analysis.
• Perform onboarding and vulnerability scanning of computing devices before connecting to the corporate network to ensure compliance with cyber hygiene standards.

Security Governance & Compliance

• Conduct periodic security reviews to ensure adherence to IT Security Policies, Standards, Controls and industry best practices.
• Recommend and implement security initiatives and enhancement based on findings from tabletop exercises (TTX) and audits.
• Monitor and ensure compliance with secure configuration standards across network, systems and endpoint (i.e. CIS Hardening) at agencies.
• Analyse Vulnerability Assessment (VA) scan results, track and report remediation status according to the stipulated timeframe.

Network, Systems and Endpoint Security

• Manage, configure, and optimize security tools and platforms to ensure effective integration with network and IT infrastructure.
• Manage network, system, endpoint and runtime security of on-premises and cloud environments.
• Perform regular reviews of accounts for both on-premises and on cloud systems/applications.

Documentation and Reporting

• Implement and update security policies, technical baselines, Standard Operating Procedures (SOPs).
• Maintain documentation of security incidents, vulnerability assessments, security checklist, security controls and policies.
• Prepare and deliver regular reports to update security performance metrics, incident trends, compliance status and risk mitigation efforts.
• Ensure timely escalation and reporting of cybersecurity incidents to management and stakeholders.

Collaboration and Stakeholder Management

• Collaborate with various IT teams (e.g. Infrastructure, Applications, Project) and external vendors to implement and maintain security controls and measures.
• Provide security advisory and recommendations to support projects and system implementations.
• Act as the key liaison with stakeholders (e.g. SIRO/SIRM, IT, Application Teams) and cloud service providers to align security-by-design principles, cybersecurity strategies and compliance requirements.

Requirements:

Education & Experience

• Bachelor’s degree in computer science, Information Technology, Cybersecurity, or a related discipline.
• Minimum 3 years of experience in Security Operations.

Technical Skills

• Hands‑on experience with security tools (e.g. SIEM, WAF, AV, EDR, PAM, DAM).
• Deep understanding of vulnerability management, threat analysis, and incident response (IR) processes.
• Good understanding of secure network design, endpoint security, and system hardening techniques.
• Familiarity with ICT security compliance frameworks, cybersecurity standards, and risk management practices.
• Familiar with IaC security (e.g. Terraform, CloudFormation) and CI/CD security.

Certifications

• Professional certifications such as CISSP or CISM are preferred.
• Cloud certifications such as ISC2 CCSP, AWS Certified Security, Azure Security Engineer Associate or equivalent would be advantageous.

Other Skills

• Strong analytical and problem‑solving skills with attention to detail.
• Effective communication skills, both written and verbal, with the ability to clearly articulate security risks and recommendations.
• Ability to work independently with minimal supervision and collaboratively within a team in a dynamic and fast‑paced environment.
• Proactive mindset with a continuous improvement attitude towards cybersecurity operations.