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.