Global Cybersecurity Tools Expert: Nessus & Stealthwatch

STEFANINI SINGAPORE PTE. LTD.; Singapore; On-site; SGD 120,000 - 150,000; Full time

Job summary

STEFANINI SINGAPORE PTE. LTD. is seeking an Enterprise Cybersecurity Specialist to oversee administration, maintenance, and enhancement of security tools across US, APAC, and EMEA.

This role acts as SME for Nessus and Stealthwatch and supports security operations, vulnerability management, compliance, and security projects. You will collaborate with global teams, perform hardening, patch management, and incident response, and maintain documentation and audit readiness across Windows, Linux/Unix,

Qualifications

• Experience with enterprise security platforms in global environments.
• Strong troubleshooting and project delivery skills.
• Proficiency in Windows, Linux/Unix, virtualization and network security.

Responsibilities

• Serve as SME for Nessus and Stealthwatch/Cisco Network Analytics.
• Manage and support cybersecurity tools including Gigamon, NetWitness, Splunk, IDS/IPS, DLP, CrowdStrike, Trellix, LastPass, Obsidian Security, and Cisco devices.
• Provide BAU support for security tools: deployment, configuration, maintenance, upgrades, troubleshooting, lifecycle management.
• Lead vulnerability management activities, including security assessments, remediation tracking, and compliance reporting.
• Develop and maintain security policies, standards, and procedures to protect corporate systems and data.
• Support and deliver cybersecurity projects, platform upgrades, and security-related change requests.
• Monitor security events, investigate incidents, and work with global teams to resolve security issues.
• Perform security hardening, patch management, and compliance activities across Windows, Linux/Unix, and network environments.
• Maintain technical documentation, operational procedures, and audit requirements.
• Act as the primary point of contact for Security Tools & Engineering and provide technical guidance to internal stakeholders.

Skills

Nessus

Stealthwatch

Gigamon

NetWitness

Vulnerability management

Security operations

Threat detection

Incident response

Security compliance

Windows

Linux/Unix

Virtualization

Enterprise network security

Tools

Splunk

IDS/IPS

DLP

CrowdStrike

Trellix

LastPass

Obsidian Security

Cisco network devices

Job description

STEFANINI SINGAPORE PTE. LTD. is seeking an Enterprise Cybersecurity Specialist to oversee administration, maintenance, and enhancement of security tools across US, APAC, and EMEA.

This role acts as SME for Nessus and Stealthwatch and supports security operations, vulnerability management, compliance, and security projects. You will collaborate with global teams, perform hardening, patch management, and incident response, and maintain documentation and audit readiness across Windows, Linux/Unix,