Chief Threat Mitigator

6 days ago

Singapore beBeeSecurity Full time

Job Role

The role of a Senior Security Analyst involves identifying and mitigating security threats within an organization.

Responsibilities include designing, implementing and maintaining high-fidelity detection rules in SIEM systems to enhance detection accuracy and reduce false positives.

  • Designing and developing custom use cases to detect MITRE TTPs aligned with real-world threats and red team activities, and continuously assessing detection efficacy based on incident feedback and threat landscape evolution.
  • Conducting detection gap analysis, tuning alerting mechanisms and eliminating false positives at the MSS customer environment.
  • Performing regular fine-tuning and optimization of detection rules, correlation logic and alert thresholds across SIEM, EDR and other security platforms to ensure alignment with the latest threat intelligence, adversary TTPs and evolving attack techniques.

Collaboration with red/purple teams is also essential for validating detection logic and building threat-informed defenses, as well as regularly reviewing, updating and enhancing detection logic to maintain relevancy and effectiveness of security detections.

Key Responsibilities

  • Proactively hunting for advanced threats across on-prem and cloud environments using telemetry from SIEM, EDR, NDR and threat intelligence, and developing hypotheses based on TTPs, threat intelligence feeds and incident trends.
  • Using frameworks like MITRE ATT&CK and Diamond Model to structure hunting campaigns, and documenting hunt procedures and outcomes to support knowledge sharing and continuous improvement.
  • Mapping threat actor TTPs to frameworks such as MITRE ATT&CK to support proactive defense strategies and inform detection engineering efforts, and providing actionable threat intelligence to SOC, detection engineering and IR teams to inform custom detection rule development, prioritization of hunts and incident scoping.

Required Skills and Qualifications

  • Candidate should have at least 8-10 years of working experience in SOC and MSS environments, and Bachelor's degree in computer engineering, Computer Science, Cyber Security, Information Security or other equivalents.
  • Excellent hands-on experience in implementations, incident analysis of Splunk, IBM QRadar, Azure Sentinel SIEM and Devo technologies, and hands-on experience on any Endpoint Protection (EPP) or Endpoint Detection Response (EDR) technologies.
  • Experience in malware analysis for Windows and Linux/Mac, exposure to firewall technologies such as Cisco, Palo Alto, Checkpoint, Fortinet, and good understanding of WIN, LINUX environments and well-versed with basic LINUX commands and troubleshooting.
  • Knowledge of current cyber threats, attack vectors, vulnerabilities, and threat intelligence feeds, and ability to work effectively in a team environment, collaborate cross-functionally and mentor junior analysts.
  • Candidate should have at least one SANS certification. Preferred if that is GCIH, and good understanding of basic network concepts and advantages of exposure to cloud technologies.

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