About the Role
The Senior Security Engineer – SIEM & detecting Engineering is responsible for designing, implementing, and optimizing Mattel’s SIEM, NDR, and XDR ecosystems to ensure comprehensive global detection and response coverage. This role requires deep expertise in security telemetry, log management, and detection engineering, with hands-on experience developing scalable analytics, alerts, and integrations that strengthen detection posture, accelerate response, and enhance operational efficiency.
Roles and Responsibilities
Architect, implement, and maintain SIEM infrastructure to ensure reliable log ingestion, parsing, correlation, and alerting across enterprise systems.
Develop and fine-tune detection content and analytics rules to identify suspicious or malicious activity across endpoints, networks, and cloud environments.
Manage and enhance Network Detection and Response (NDR) and Extended Detection and Response (XDR) platforms, integrating telemetry for end-to-end visibility.
Partner with the SOC and Incident Response teams to improve alert fidelity, reduce false positives, and accelerate investigation workflows.
Integrate SIEM with SOAR and automation pipelines to support rapid response and consistent case handling.
Collaborate with infrastructure and application teams to ensure comprehensive log coverage and compliance with data retention and privacy requirements.
Develop and maintain dashboards, metrics, and reporting to measure detection performance and operational efficiency.
Conduct periodic health checks, tuning, and performance optimization for SIEM and NDR solutions.
Maintain detailed documentation, playbooks, and SOPs supporting SIEM and NDR operations.