Contract- IT Security Officer (Non Hybrid)

ICON OUTSOURCING; Singapore; On-site; SGD 120,000 - 180,000; Part time

Job summary

ICON OUTSOURCING in Singapore is seeking a contract professional to protect OT/ICS environments, conduct security monitoring, manage vulnerabilities, and strengthen cybersecurity controls across critical operations.

The role covers asset management, security operations, risk/compliance, vulnerability management, and supplier security, requiring 5+ years in IT/OT security and relevant certifications where applicable.

Qualifications

• Bachelor's degree in Cybersecurity, Information Technology, Computer Science, or a related discipline.
• Minimum 5 years of experience in IT Security or OT Security roles.
• Experience in critical infrastructure, government, scientific, industrial, or highly regulated environments.
• Hands-on experience with SIEM platforms, IDS/IPS technologies, and endpoint security solutions.
• Strong understanding of cybersecurity operations, incident response, and threat management.
• Ability to obtain and maintain the required security clearance.

Responsibilities

• OT Security & Asset Management: Discover and maintain inventory of OT assets using non-intrusive monitoring tools.
• Security Operations & Monitoring: Monitor and protect operational technology environments and manage SIEM for threat detection.
• Risk Management & Compliance: Conduct cybersecurity risk assessments and ensure compliance with frameworks and policies.
• Vulnerability Management: Coordinate vulnerability assessments, patching activities, and remediation programs.
• Vendor & Supply Chain Security: Evaluate third-party providers for security and ensure secure procurement practices.

Skills

Cybersecurity operations

Incident response

Threat management

Stakeholder communication

Education

Bachelor's degree in Cybersecurity/IT/CS

Tools

SIEM platforms

IDS/IPS technologies

Endpoint security solutions

Job description

Contract Role

The successful candidate will be responsible for protecting the confidentiality, integrity, and availability of OT systems, conducting security monitoring, managing vulnerabilities, supporting compliance initiatives, and strengthening cybersecurity controls across critical operational environments.

Key Responsibilities

OT Security & Asset Management

• Discover and maintain inventory of OT assets using non-intrusive monitoring tools.
• Maintain asset registers, network architecture diagrams, and data flow documentation.
• Identify unmanaged devices, network risks, and potential attack paths across IT and OT environments.
• Support security baseline maintenance and architecture reviews.

Security Operations & Monitoring

• Monitor and protect operational technology environments.
• Operate and manage SIEM solutions for threat detection and monitoring.
• Support security incident investigation, response, and remediation activities.
• Coordinate with internal stakeholders and relevant security teams on cybersecurity matters.

Risk Management & Compliance

• Conduct cybersecurity risk assessments and security reviews.
• Ensure compliance with industry security standards, cybersecurity frameworks, and organizational policies.
• Support business continuity and disaster recovery planning and testing.

Vulnerability Management

• Coordinate vulnerability assessments, penetration testing, and security audits.
• Manage patching activities and remediation programs.
• Work closely with infrastructure and application teams to address security findings.

Vendor & Supply Chain Security

• Evaluate third-party hardware, software, and service providers from a security perspective.
• Support vendor security reviews and secure procurement practices.
• Ensure cybersecurity requirements are adhered to by external partners and suppliers.

Mandatory Requirements

• Bachelor's Degree in Cybersecurity, Information Technology, Computer Science, or a related discipline.
• Minimum 5 years of experience in IT Security or OT Security roles.
• Experience in critical infrastructure, government, scientific, industrial, or highly regulated environments.
• Hands-on experience with SIEM platforms, IDS/IPS technologies, and endpoint security solutions.
• Strong understanding of cybersecurity operations, incident response, and threat management.
• Ability to obtain and maintain the required security clearance.

Preferred Certifications

• CISSP (Certified Information Systems Security Professional)
• CISM (Certified Information Security Manager)
• CEH (Certified Ethical Hacker)
• GICSP (Global Industrial Cyber Security Professional)
• Other relevant cybersecurity certifications