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Senior Cyber Security Consultant

SINGAPORE TELECOMMUNICATIONS LIMITED

CybersecurityManagerFull-timeGeylang, Eunos, Singapore

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.

Listing closes 5 Dec 2026.

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