SIEM and Security Architecture Engineer

Job not on LinkedIn

🕒 July 13

🇮🇪 Ireland – Remote

⏳ Contract/Temporary

🟡 Mid-level

🟠 Senior

👮‍♂️ Cybersecurity / Security Engineer

👻 Ghost score 31%

What it means: how likely this posting is sitting open without active hiring.How to read it: 60% or higher means we think this is a ghost. Lower scores are less of a worry.How we score it: age, reposts, open roles vs team size, how fast jobs close, and whether pay is listed.Fine print: an estimate from public data, not a judgment of the company. Real jobs can score high, so treat it as a hint, not a fact.

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Castillians

WebsiteLinkedInAll Job Openings

51 - 200 employees

Founded 2006

Castillians is a company whose publicly available text is inaccessible without JavaScript; the provided content only shows a message asking the user to enable JavaScript. No information about the company's product, services, industry, or target customers can be determined from this text alone.

📋 Description

• Be part of our Global Engineering Network! • Design and implement a high-availability IBM QRadar SIEM architecture to ensure resilience, scalability, and business continuity. • Perform platform sizing and capacity planning based on log volume, EPS/FPS requirements, retention policies, and future growth. • Lead the deployment, configuration, and optimization of the IBM QRadar platform. • Plan and execute the migration from the existing SIEM solution to IBM QRadar with minimal service disruption. • Integrate, collect, parse, and normalize logs from diverse security devices, network infrastructure, servers, applications, cloud services, and endpoint solutions. • Develop, tune, and maintain correlation rules, use cases, offenses, and detection content aligned with the MITRE ATT&CK framework. • Optimize SIEM performance by reducing false positives and improving detection accuracy. • Configure and manage access security, including Multi-Factor Authentication (MFA), LDAP / Active Directory integration, Role-Based Access Control (RBAC). • Ensure compliance with security standards and organizational policies. • Produce technical documentation, architecture diagrams, deployment guides, and operational procedures. • Collaborate with SOC analysts, infrastructure teams, and cybersecurity stakeholders to continuously improve monitoring and incident detection capabilities. • Provide technical support, troubleshooting, and knowledge transfer to operational teams.

🎯 Requirements

• Bachelor's degree in Computer Science, Information Security, Engineering, or a related field. • Proven experience designing, deploying, and administering IBM QRadar SIEM in enterprise environments. • Strong expertise in SIEM architecture, high-availability design, and platform sizing. • Hands-on experience with SIEM migration projects. • Solid knowledge of log collection, parsing, normalization, and event management. • Experience developing and tuning correlation rules and detection use cases aligned with the MITRE ATT&CK framework. • Experience integrating QRadar with LDAP/Active Directory, MFA, and Role-Based Access Control (RBAC). • Strong understanding of cybersecurity principles, network security, and security monitoring. • Excellent analytical, troubleshooting, and problem-solving skills. • Strong communication skills and the ability to collaborate with technical and business stakeholders.

🏖️ Benefits

• Clear scope with no ambiguity over deliverables. • Opportunity for repeat engagements based on performance.