AI Cyber Defence Specialist

Aleph (Formerly Red Alpha Cyber); Singapore; On-site; SGD 180,000 - 260,000; Full time

Job summary

Aleph (Formerly Red Alpha Cyber) is seeking an AI Cyber Defence Specialist to lead threat management across SOC, Vulnerability Management, Threat Hunting and DFIR by leveraging AI. Reporting to the CISO Office, the role ensures capabilities are intelligence-led and aligned with regulatory expectations.

You will manage 24x7 SOC operations, drive MITRE ATT&CK-based detections, coordinate with MSSP/MDR, oversee incident response, and report security risk and trends to senior management.

Qualifications

• Degree in Computer Science, IT, Cybersecurity or related field.
• Proven cybersecurity track record with 5+ years in the field and 3+ years leading a team.
• Experience leading major incident responses (ransomware, intrusions, data breaches).
• Hands-on with SIEM, EDR/XDR, and SOAR; vulnerability management experience.
• Knowledge of MITRE ATT&CK, CIS Controls and ISO/IEC 27001.
• Familiarity with AI-enabled security operations and AI threat detection.

Responsibilities

• Lead 24x7 SOC operations with MSSP/MDR partners, ensuring SLAs.
• Own SOC operating model, playbooks, runbooks and escalation matrix.
• Drive detection engineering across SIEM/EDR/XDR; map to MITRE ATT&CK.
• Ensure log source coverage from endpoints to network.
• Oversee SOAR automation for alert enrichment and containment.
• Define and report SOC KPIs/KRIs to CISO and executives.
• Lead responses to zero-day vulnerabilities with rapid patching coordination.
• Establish threat hunting using threat intelligence and telemetry.
• Translate hunt findings into new detections and improvements.
• Analyse threat intel from multiple sources to inform actions.
• Operationalise threat intelligence and manage the TIP.
• Coordinate security incident response across teams and partners.
• Manage vendor relationships and cyber defence budget.
• Present threat landscape and incident trends to leadership.
• Support audits and regulatory inspections with evidence of controls.
• Coordinate with stakeholders during incidents and changes in scope.

Skills

SOC operations

Incident response

Digital forensics

Threat hunting

MITRE ATT&CK

SIEM proficiency

EDR/XDR

SOAR platforms

Vulnerability management

Vendor management

Regulatory/compliance

AI-enabled security

Education

Bachelor's degree in Computer Science / IT / Cybersecurity

Tools

Elastic

Microsoft Sentinel

Google SecOps

QRadar

CrowdStrike

Microsoft Defender

Trend Micro

Trellix

Tenable Nessus

SOAR platforms

Job description

We are seeking an Artificial Intelligence (AI) Cyber Defence Specialist to lead the organisation’s threat management capabilities across Security Operations, Vulnerability Management, Threat Hunting and Digital Forensics & Incident Response (DFIR) by leveraging on AI.

Reporting to the CISO Office, the candidate will be accountable and responsibility for the roles as stated below. The candidate will ensure these capabilities are intelligence-led using AI, measurable and aligned to regulatory and industry expectations, including (but not limited) to the Cybersecurity Act and Cybersecurity Code of Practice (CCoP).

Roles and Responsibilities of this role include the use of AI, but are not limited to:

• Lead and manage the 24x7 Security Operations Centre (SOC) operations, including any Managed Security Service Provider (MSSP) or MDR partner, ensuring security events are monitored, triaged, escalated and resolved within defined Service Level Agreements (SLAs)
• Own the SOC operating model and its associated process- tiered analyst structure, shift roster, playbooks, runbooks and escalation matrix- and drive measurable improvement in SOC maturity using AI
• Drive detection engineering across SIEM, EDR/XDR, identity and cloud-native security tooling; develop, tune and retire use cases mapped to MITRE ATT&CK to increasedetection coverage and reduce false positives
• Ensure log source coverage across critical assets – endpoints, servers and network
• Oversee SOAR automation to accelerate alert enrichment, triage and containment actions
• Define and report SOC KPIs and KRIs (e.g. MTTD, MTTR, ATT&CK coverage, alert severity, SLA adherence) to the CISO and senior management
• Lead the organisation’s response to critical zero-day and emerging vulnerabilities, including rapid exposure assessment, compensating controls and emergency patching coordination
• Establish and lead a structured, hypothesis-driven threat hunting programme based on threat intelligence, MITRE ATT&CK and anomalies observed in environment telemetry
• Develop hypotheses and techniques, and execute hunts to identify undetected threats across the environment; convert hunt findings into new or improved detections
• Gather and analyse cyber threat information and intelligence from commercial feeds, government sources (e.g. CSA / Sectoral lead) and open sources to derive insights on attack tactics, techniques and procedures (TTPs), campaigns and threat actor profiles relevant to the organisation and its sector
• Operationalise threat intelligence, including IOC ingestion and management of the threatintelligence platform (TIP)
• Act as security incident responder for cyber incidents, coordinating technical response, containment, eradication and recovery across internal teams and external partners
• Manage vendor relationships, contracts and performance for MSSP/MDR, IR retainer, maintenance for cyber security technology stack, security tooling providers; plan and manage the cyber defence budget
• Present the organisation’s threat landscape, incident trends and cyber defence posture to the CISO
• Support internal and external audits and regulatory inspections, providing evidence of control design and operating effectiveness
• Proactively coordinate with technical and business stakeholders, and manage internal and external partnerships during a security incident
• Any other assigned duties when there is a change in the business requirements and scope of work

What you need to have:

• A degree in Computer Science, Information Technology, Cybersecurity or a related discipline
• At least 5 years of cybersecurity experience, with substantial hands-on experience in SOC operations, incident response and digital forensics, including at least 3 years leading a team
• Proven track record of leading the response to significant incidents (e.g. ransomware, targeted intrusions, data breaches) from detection through to recovery and post-incident review
• Hands-on expertise with SIEM (e.g. Elastic, Microsoft Sentinel, Google SecOps, QRadar), EDR/XDR (e.g. CrowdStrike, Microsoft Defender, Trendmicro, Trellix), and SOAR platforms
• Experience with vulnerability management platforms (e.g. Tenable Nessus) and risk-based prioritisation approaches
• Highly analytical, with strong attention to detail and outstanding problem-solving skills; able to work independently and under pressure in a fast-paced environment
• Willingness to be on call and respond outside office hours during major incidents and/or as and when the need arises
• Relevant cybersecurity certifications
• Strong knowledge of frameworks and regulations such as MITRE ATT&CK, CIS Controls v8.1, ISO/IEC 27001:2022, Cybersecurity Act and PDPA
• Familiarity with AI-enabled security operations and threats targeting AI/LLM workloads
• Commensurate with experience and qualifications