Siem Consultant

We are a $13+ billion global technology company, home to more than 224,000 people across 60 countries, delivering industry-leading capabilities centered around digital, engineering, cloud, and AI, powered by a broad portfolio of technology services and products. HCLTech is a globally recognized leader in the Tech and IT industry, but we've never forgotten the startup mindset that got us here. We've always approached our work with an idea-first attitude because every one of our accomplishments —no matter how big or small —can be traced back to an idea's single spark. It's that spark —that inner drive —that sets our people apart from our competitors. It enables us not just to pull off game-changing feat after game-changing feat but to better our world in the process. We want you to find your spark. Because that's what drives you to be better, be more and ultimately, be more fulfilled. SIEM Consultant Location - Remote, UK If required can travel 1- 2 days from office

In-scope technologies/products: Splunk, Linux SOC, SIEM, Sentinel, SOAR & Threat Detection Engineer Key responsibilities

• Identify critical applications and telemetry sources for SIEM onboarding.
• Optimise Microsoft Sentinel ingestion and cost drivers while preserving detection value.
• Develop or tune threat analytics and detection use cases.
• Plan automation, sandboxing and SOAR workflows with ServiceNow integration touchpoints.
• Support breach attack simulation POC and triage process improvement.
• Design, implement, and continuously improve security monitoring and threat detection capabilities across the organization.
• Onboarding, configuration, and optimization of Microsoft Sentinel and other SIEM platforms.
• Develop and maintain detection rules, use cases, alerts, dashboards, and security monitoring processes.
• Build and enhance SOAR playbooks to automate repetitive security operations and incident response activities.
• Perform threat hunting, incident investigations, and root cause analysis to identify and address security threats.
• Integrate security tools, cloud platforms, endpoints, and network devices into the SIEM ecosystem.
• Work closely with SOC analysts, security teams, and technology stakeholders to improve visibility, detection coverage, and response effectiveness.
• Provide recommendations to strengthen the organization's overall security posture and monitoring maturity. Required skills and experience
• Microsoft Sentinel and SIEM onboarding
• Detection engineering and analytics tuning
• SOAR playbooks and automation
• Threat simulation and sandboxing
• SOC process and incident workflow integration
• Experience in Security Operations, SIEM Engineering, Threat Detection, or Cyber Security Monitoring.
• Strong hands-on experience with Microsoft Sentinel, including log onboarding, analytics rules, workbooks, hunting queries, and incident management.
• Experience working with SIEM platforms such as Microsoft Sentinel, Splunk, IBM QRadar, ArcSight, or similar solutions.
• Good understanding of security operations, security monitoring, incident response, and threat hunting practices.
• Experience developing and tuning detection use cases to reduce false positives and improve threat visibility.
• Hands-on experience with SOAR platforms and security automation workflows.
• Strong knowledge of log analysis, event correlation, and security investigations across cloud, endpoint, identity, and network environments.
• Familiarity with the MITRE ATT&CK Framework, threat intelligence integration, and detection engineering concepts.
• Experience with Microsoft security technologies such as Microsoft Defender XDR, Defender for Endpoint, Defender for Cloud, and Entra ID is highly desirable.
• Strong analytical, troubleshooting, and stakeholder communication skills.
• Experience supporting or leading SIEM/SOC transformation, optimization, or modernization initiatives is preferred.