Cyber Security Resident Engineer
Ensign InfoSecurityJob Description
Responsibilities - Monitor client environments using SIEM and/or EDR platforms to detect, triage, and respond to cybersecurity threats in accordance with agreed SOPs and industry best practices - Analyse and investigate security alerts escalated from client teams, MSSPs, and internal systems; lead or support incident response through to closure - Triage alerts from the SIEM to identify notable alerts for escalation, based on established operating procedures or industry best practices - Advise clients on possible follow-up actions and remediation measures for escalated alerts - Respond to incidents and critical alerts outside of office hours when required - Perform indicator of compromise (IOC) searches and triage incoming threat intelligence to assess relevance to client assets - Gather and report on threat intelligence using the client's Threat Intelligence Platform - Coordinate with client stakeholders including IT, infrastructure, application, and business teams during active incidents and programme activities - Collaborate with MSSPs and Ensign delivery teams on detection tuning to reduce noise and improve fidelity - Manage detection use cases, dashboards, and reports on SIEM: perform monthly and ad hoc reviews, validate and maintain existing rules, and develop and implement new use cases - Manage playbooks, automation scripts, and integrations on SOAR: review, validate, maintain, and develop new playbooks; optimise existing ones for accuracy and efficiency - Any other tasks as assigned Requirements - Degree in Computer Science, Information Security, or a related discipline - 3 to 7 years of experience in cybersecurity operations or a Security Operations Centre (SOC) environment - Hands-on experience with SIEM platforms and solid understanding of network, Windows, and Linux infrastructure - Experience in security, network, and cyber threat analysis - Demonstrated ability to triage, investigate, and respond to security incidents independently - Comfortable operating in a client-facing, on-site environment with direct accountability to client stakeholders - Clear written and verbal communication; able to produce structured incident reports and brief senior stakeholders - GIAC Certified Incident Handler (GCIH) or equivalent certification required Preferred Skills / Qualities - Working knowledge of SOAR platforms; experience with playbook development or automation scripting - Knowledge of cloud infrastructure security (AWS, Azure, or GCP) - Familiarity with Threat Intelligence Platforms and IOC management workflows - Exposure to Singapore regulatory frameworks: CSA advisories, IMDA guidelines, MAS TRM - Additional certifications such as GCFE, GCFA, OSCP, or vendor product certifications
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