Senior Incident Response Specialist, Cyber Security-Malaysia

Role Mission

The Senior Analyst - Cyber Security Incident Response is responsible for monitoring, detecting, and analyzing cybersecurity incidents through the Security Operations Centre (SOC) platform. The role supports the end-to-end incident lifecycle — including triage, investigation, containment, and closure — ensuring timely response to security events and maintaining cyber resilience. This role acts as the Level 2 (L2) Incident Responder, bridging SOC analysts and Incident Response management by performing deep technical analysis and coordinating with internal teams for resolution.

Accountabilities:

• Perform end-to-end incident triage and investigation of security alerts escalated from L1 SOC analysts.

• Ensure timely incident analysis, containment, and escalation aligned with MTTD and MTTR goals.

• Support the SIEM platform (Elastic Stack) by fine-tuning existing rules and suggesting new detections.

• Conduct log analysis and correlation across multiple data sources (network, endpoint, and cloud).

• Create and maintain incident documentation, reports, and lessons learned.

• Support incident response playbook execution during containment and recovery phases.

• Collaborate with IT, network, and application teams for incident remediation and root cause analysis.

• Provide insights for use case improvements and participate in use case validation and testing.

• Escalate confirmed incidents to CSIRT / Assistant Manager - Incident Response for further action.

• Participate in post-incident reviews, contributing to process and detection improvements.

• Monitor alerts generated from the SOC/SIEM and perform initial to intermediate-level investigations.

• Review and validate security events from multiple log sources and identify legitimate threats.

• Perform deep-dive investigations for incidents involving malware, phishing, insider threats, and cloud breaches.

• Assist in detection rule creation and tuning under the guidance of senior incident responders.

• Use frameworks like MITRE ATT&CK for mapping and improving detection quality.

• Conduct threat hunting using Elastic Stack and related tools.

• Collaborate with MSSP, CSIRT, and IT infrastructure teams to ensure timely incident handling.

• Support incident response reporting, evidence collection, and documentation for compliance and audit.

• Contribute to automation opportunities in detection and response workflows.

• Participate in training sessions, simulations, and tabletop exercises to enhance readiness.

• Responsible for the log source onboarding and managing the continuous logs availability on the SIEM platform.

Requirements

• Monitor alerts generated from the SOC/SIEM and perform initial to intermediate-level investigations.

• Review and validate security events from multiple log sources and identify legitimate threats.

• Perform deep-dive investigations for incidents involving malware, phishing, insider threats, and cloud breaches.

• Assist in detection rule creation and tuning under the guidance of senior incident responders.

• Use frameworks like MITRE ATT&CK for mapping and improving detection quality.

• Conduct threat hunting using Elastic Stack and related tools.

• Collaborate with MSSP, CSIRT, and IT infrastructure teams to ensure timely incident handling.

• Support incident response reporting, evidence collection, and documentation for compliance and audit.

• Contribute to automation opportunities in detection and response workflows.

• Participate in training sessions, simulations, and tabletop exercises to enhance readiness.

• Responsible for the log source onboarding and managing the continuous logs availability on the SIEM platform.
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