Senior Cybersecurity Incident & Threat Hunter

Singtel; Singapore; On-site; Confidential; Full time

Job summary

Singtel is seeking an Enterprise Cyber Security specialist to act as the technical focal point during cyber incidents, coordinating with SOC, CISO, infrastructure, network, cloud, and vendor teams. The role involves incident triage, investigation, containment, evidence gathering, remediation tracking, and post‑incident review.

The ideal candidate will conduct proactive threat hunting across enterprise infrastructure using telemetry from SIEM, EDR, NDR, vulnerability management tools, and asset

Qualifications

• Bachelor’s degree or diploma in cybersecurity or related field.
• Minimum 7 years of experience in cybersecurity operations, incident response, threat hunting, SOC operations, detection engineering, infrastructure security, or related roles.
• Strong understanding of incident response lifecycle.
• Hands-on experience with SIEM, EDR, NDR, vulnerability management, threat intelligence platforms, asset discovery tools, firewalls, and endpoint/network security controls.
• Good understanding of network security, TCP/IP, routing, firewalls, VPNs, DNS, authentication, Windows/Linux, Active Directory, and cloud security fundamentals.
• Experience analysing logs, alerts, network traffic, endpoint telemetry, user activity, and security events to identify threats or suspicious behaviours.
• Familiarity with MITRE ATT&CK, Cyber Kill Chain, threat hunting methodologies, and common attacker tactics, techniques, and procedures.
• Ability to work across multiple teams during incidents and security projects, including SOC, CISO, infrastructure, network, application, cloud, GRC, and vendor teams.
• Strong analytical, troubleshooting, documentation, stakeholder management, and communication skills.

Responsibilities

• Act as the Enterprise Cyber Security technical focal point during cyber incidents, working closely with SOC, CISO, infrastructure, network, cloud, application, and vendor teams.
• 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 security tools.
• Identify suspicious behaviours, attack patterns, lateral movement indicators, privilege misuse, exposed services, anomalous access, and other signs of compromise.
• Develop and enhance threat hunting hypotheses, detection use cases, investigation playbooks, response procedures, and escalation workflows.
• Support improvement of security monitoring by identifying gaps in logs, telemetry, asset visibility, EDR/NDR/SIEM coverage, and detection rules.
• Work with SOC and central security teams to improve alert quality, detection coverage, investigation context, and incident response readiness.
• Support vulnerability management and risk‑based remediation by correlating vulnerabilities with asset criticality, exposure, threat intelligence, and compensating controls.
• Support Enterprise cybersecurity initiatives including NDR deployment, asset discovery, micro‑segmentation, Zero Trust controls, PIAM/IAM adoption, and security tool integration.
• Participate in security assessments, threat reviews, tabletop exercises, incident simulations, and lessons‑learned activities.
• Support root cause analysis and ensure remediation actions from cyber incidents, audit findings, vulnerability reviews, and threat hunting activities are tracked to closure.
• Prepare management reports, investigation summaries, threat hunting findings, risk updates, incident dashboards, and security posture metrics.
• Support cybersecurity audits, regulatory requests, internal governance activities, and evidence collection where related to incident response, monitoring, and security controls.
• Maintain and improve technical documentation including incident response runbooks, threat hunting procedures, SOPs, escalation guides, and operational checklists.
• Provide guidance to internal teams on security best practices, incident handling, evidence preservation, secure configuration, and remediation actions.

Skills

Incident response

Threat hunting

SOC operations

Detection engineering

Infrastructure security

Security monitoring

Log analysis

Communication

Education

Bachelor's degree or diploma in Cybersecurity/IT/CS

Tools

SIEM

EDR

NDR

Vulnerability management

Threat intelligence platforms

Asset discovery tools

Firewalls

Endpoint security controls

Cloud security platforms

Job description

Singtel is seeking an Enterprise Cyber Security specialist to act as the technical focal point during cyber incidents, coordinating with SOC, CISO, infrastructure, network, cloud, and vendor teams. The role involves incident triage, investigation, containment, evidence gathering, remediation tracking, and post‑incident review.

The ideal candidate will conduct proactive threat hunting across enterprise infrastructure using telemetry from SIEM, EDR, NDR, vulnerability management tools, and asset