Senior Cybersecurity Incident Response & Threat Hunter

Singapore Telecommunications Limited; Singapore; On-site; SGD 130,000 - 180,000; Full time

Job summary

Singapore Telecommunications Limited seeks an experienced Enterprise Cyber Security specialist to act as the incident response focal point, coordinating with SOC and cross-functional teams. You will conduct threat hunting, develop detection use cases, and support remediation efforts across enterprise infrastructure.

The role requires hands-on experience with SIEM/EDR/NDR, vulnerability management, and cloud security, with strong analytical and communication skills for cross-team collaboration.

Qualifications

• Bachelor’s degree or diploma with relevant experience in Cybersecurity, IT, CS, Engineering, or related field.

Responsibilities

• Act as the Enterprise Cyber Security focal point during cyber incidents, coordinating with SOC, CISO, infrastructure, network, cloud, application, and vendors.
• Support cyber incident response activities including triage, investigation, containment coordination, evidence gathering, remediation tracking, and post incident review.
• Conduct proactive threat hunting across Enterprise infrastructure using telemetry from SIEM, EDR, NDR, vulnerability management, asset discovery, and other tools.
• Identify suspicious behaviours, attack patterns, lateral movement indicators, and other signs of compromise.
• Develop and enhance threat hunting hypotheses, detection use cases, investigation playbooks, response procedures, and escalation workflows.
• Support security monitoring improvements by identifying gaps in logs, telemetry, asset visibility, and detection rules.
• Work with SOC and central security teams to improve alert quality, detection coverage, investigation context, and incident response readiness.

Skills

Incident response

Threat hunting

SOC operations

Detection engineering

Infrastructure security

Cloud security

Log analysis

Communication

Education

Bachelor’s degree or diploma in Cybersecurity/IT/CS/Engineering

Tools

Microsoft Sentinel

Splunk

CrowdStrike

Palo Alto

AWS/Azure security

Job description

Singapore Telecommunications Limited seeks an experienced Enterprise Cyber Security specialist to act as the incident response focal point, coordinating with SOC and cross-functional teams. You will conduct threat hunting, develop detection use cases, and support remediation efforts across enterprise infrastructure.

The role requires hands-on experience with SIEM/EDR/NDR, vulnerability management, and cloud security, with strong analytical and communication skills for cross-team collaboration.