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L3 SIEM – Roles & Responsibilities
Experience (8-12 Years)
• Advanced Incident Support & Root Cause Analysis
• Support L2 in handling complex and critical security incidents
• Perform deep forensic analysis and root cause identification
• Investigate sophisticated threats (APT, zero-day behavior, stealth attacks)
• Provide final technical validation and resolution guidance
• SIEM Agent Management
• Manage upgrades, patches, and hotfix deployments for System monitor agents
• Ensure Log Source MPS volume analysis
• Log Source Integration & Parsing
• Design and onboard new log sources across on-prem and cloud environments
• Develop and maintain parsing logic, normalization, and field mappings
• Resolve complex ingestion issues (protocol, TLS, format mismatches)
• Ensure data quality and consistency across all sources
• Detection & Use Case Development
• Design and implement advanced correlation rules and detection logic
• Build new use cases aligned with frameworks like MITRE ATT&CK;
• Integrate threat intelligence feeds and automation into detection workflows
• Continuously enhance detection coverage and reduce blind spots
• Automation & SOAR Integration
• Add/Maintain automation workflows and response playbooks
• Integrate SIEM with SOAR and other security tools (EDR, IAM, Firewall)
• Optimize response time through orchestration and automation
• Performance Optimization & Troubleshooting
• Diagnosing and resolving log source- issues
• Optimize pipelines, indexing, and query performance
• Governance, Compliance & Best Practices
• Define SIEM standards, architecture guidelines, and best practices
• Ensure compliance with regulatory and audit requirements and