Senior Cyber Security Consultant

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

Make an impact by:

• 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 available 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 for Success:

• Bachelor’s degree or diploma with relevant experience in Cybersecurity, Information Technology, Computer Science, Engineering, or a 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 cyber incident response lifecycle, including detection, triage, containment, eradication, recovery, and post-incident review.
• Hands-on experience with security technologies such as 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 systems, 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.

Preferred Certifications and Skills

• Relevant incident response or threat hunting certifications such as GCIH, GCIA, GCFA, GNFA, GCFE, CySA+, or equivalent.
• Cybersecurity certifications such as CISSP, CISM, Security+, or equivalent are advantageous.
• SIEM, EDR, NDR, or cloud security certifications from platforms such as Microsoft Sentinel, Splunk, CrowdStrike, Palo Alto, AWS, or Azure are preferred.
• Experience with scripting, automation, and data analysis using PowerShell, Python, KQL, SPL, APIs, or similar technologies.
• Exposure to tools and technologies such as Microsoft Sentinel, Splunk, CrowdStrike, Tenable, Qualys, Darktrace, Palo Alto, Illumio, CyberArk, Delinea, Device42, or similar platforms.

• Experience working in complex, regulated, telecom, infrastructure-heavy, or enterprise-scale environments.