Cyber Defense Lead - Vulnerability & IR Ops

OPTIMUM SOLUTIONS (SINGAPORE) PTE LTD; Singapore; On-site; SGD 90,000 - 120,000; Full time

Job summary

OPTIMUM SOLUTIONS (SINGAPORE) PTE LTD is hiring for a Vulnerability Management and Security Operations role in Singapore. You will coordinate vulnerability management across on-prem and cloud environments, leveraging VMS and Tenable tools to identify and monitor threats, and drive patch remediation with cross-functional teams.

You will also support security incident response, DDoS and WAF operations, and reporting for governance and audits, ensuring compliance with IM8 and security standards.

Qualifications

• Diploma or degree in IT, cybersecurity, CS, IS, or related field.
• 4–5 years in IT security operations, vulnerability management, or related functions.
• Experience with vulnerability management tools (e.g., Tenable).
• Exposure to Microsoft Azure security and cloud environments is advantageous.
• Experience coordinating cybersecurity incidents and remediation activities.
• Familiarity with DDoS protection and WAF technologies.
• Experience supporting compliance and governance in enterprise or public-sector environments.
• Strong coordination and stakeholder management skills.

Responsibilities

• Coordinate vulnerability management across on-prem, servers, endpoints, apps and Azure cloud.
• Utilize VMS, TenableOne, Cloudscape to identify and monitor vulnerabilities.
• Review assessment results and patch compliance to set remediation priorities.
• Track remediation progress with infrastructure and app teams; ensure timelines.
• Support incident response activities and coordinate investigations with stakeholders.
• Assist in DDoS and WAF operations and vulnerability-related service reviews.
• Compile reports and evidence for audits, governance, and regulatory compliance.

Skills

Coordination

Analytical skills

Communication

Teamwork

Organization

Multitasking

Education

Diploma or Degree in IT / Cybersecurity or related field

Tools

Tenable

Azure

DDoS protection

Job description

OPTIMUM SOLUTIONS (SINGAPORE) PTE LTD is hiring for a Vulnerability Management and Security Operations role in Singapore. You will coordinate vulnerability management across on-prem and cloud environments, leveraging VMS and Tenable tools to identify and monitor threats, and drive patch remediation with cross-functional teams.

You will also support security incident response, DDoS and WAF operations, and reporting for governance and audits, ensuring compliance with IM8 and security standards.