Vulnerability Management Specialist

SINGAPORE POWER LIMITED; Singapore; On-site; SGD 90,000 - 150,000; Full time

Job summary

SINGAPORE POWER LIMITED is hiring a cybersecurity professional to oversee vulnerability management across OT, SCADA, CII, and IT environments. You will assess remediation feasibility, coordinate patch schedules, and support firmware upgrades in server, application, network, and OT systems.

You will conduct scans, coordinate tests, monitor patch and SLA compliance, and prepare change documents. Strong experience with ISO 27001 and risk assessments is required.

Qualifications

• Bachelor’s degree in Cybersecurity, Computer Science, Engineering or a related field.
• 5+ years’ experience in OT/SCADA/CII, network, infrastructure administration, IT or cybersecurity operations.
• Working knowledge of ISO 27001, CIS Benchmarks, risk assessment, network security, patch and vulnerability management.
• Strong troubleshooting skills for patching, firmware upgrades and configuration changes.

Responsibilities

• Assess vulnerabilities across OT, SCADA, CII, IT/network environments, and recommend remediation.
• Assess remediation feasibility, operational impact and compensating controls for sensitive systems, and coordinate remediation plans, patch schedules and maintenance windows with teams, system owners and vendors.
• Support patch deployment, firmware upgrades and validation across servers, applications, network devices and OT systems.
• Conduct periodic scans on OT, air-gapped, enterprise and cloud environments; coordinate penetration tests and asset inventory mapping.
• Provide weekend support for emergency patches, critical deployments or maintenance windows.
• Track KPIs/KRIs on vulnerability exposure, patch compliance and SLA adherence, and present dashboards and technical reports to the security council and senior management.
• Prepare documentation for Change Requests, Deviations and Risk Acceptances.
• Coordinate security reviews, risk assessments and audits, and follow through on recommendations from auditors or the security council.
• Support the VM Lead in facilitating remediation meetings with system owners and stakeholders.

Skills

Vulnerability management

Analytics

Dashboards

MS Excel

PowerBI

Education

Bachelor’s degree in Cybersecurity/CS/Engineering

Tools

RedHat Linux

Windows

vCenter

ESXi

Kubernetes

MSSQL

Oracle

PostgreSQL

Java

.NET

Apache

nginx

IIS

Weblogic

Cisco

Arista

F5

Checkpoint

Palo Alto

MS Excel

PowerBI

Job description

What You'll Do:

• Assess vulnerabilities across OT, SCADA, CII, IT/network environments, and recommend remediation.
• Assess remediation feasibility, operational impact and compensating controls for sensitive systems, and coordinate remediation plans, patch schedules and maintenance windows with teams, system owners and vendors.
• Support patch deployment, firmware upgrades and validation across servers, applications, network devices and OT systems.
• Conduct periodic scans on OT, air-gapped, enterprise and cloud environments; coordinate penetration tests and asset inventory mapping.
• Provide weekend support for emergency patches, critical deployments or maintenance windows.
• Track KPIs/KRIs on vulnerability exposure, patch compliance and SLA adherence, and present dashboards and technical reports to the security council and senior management.
• Prepare documentation for Change Requests, Deviations and Risk Acceptances.
• Coordinate security reviews, risk assessments and audits, and follow through on recommendations from auditors or the security council.
• Support the VM Lead in facilitating remediation meetings with system owners and stakeholders.

Technical Specialisations:

Candidates are expected to fulfil one or more of the following areas. Experience in multiple areas is a plus:

• Operating Systems & Virtualization: Linux (RedHat preferred), Windows, vCenter, ESXi, Kubernetes.
• Database Management: MSSQL, Oracle, PostgreSQL.
• SAP Systems: Kernel, PO, support packages, SAP Notes.
• Application stacks: Java, .NET, Apache, nginx, IIS, Weblogic.
• Network Systems: Routers, switches, firewalls (ACI, Cisco, Arista, F5, Checkpoint, Palo Alto); network flows.
• VM Analyst: 3+ years in vulnerability management and 5+ years in analytics; skilled in dashboards and reporting (MS Excel, Co-Pilot, PowerBI).

What You'll Need:

• Bachelor’s degree in Cybersecurity, Computer Science, Engineering or a related field.
• 5+ years’ experience in OT/SCADA/CII, network, infrastructure administration, IT or cybersecurity operations.
• Working knowledge of ISO 27001, CIS Benchmarks, risk assessment, network security, patch and vulnerability management.
• Strong troubleshooting skills for patching, firmware upgrades and configuration changes.