Stefanini Group is seeking a skilled Cyber Security Services (CSS) Seniorr Incident Response (IR) Analyst to join our Security Operations Center.
As a CSS Sr. IR Analyst , you will manage security incidents, develop incident response processes, and enhance security configurations tailored to client needs. Your expertise will be crucial in reducing false positives and identifying security gaps within the client's IT infrastructure.
Work Schedule: Two rotating 8.5-hour shifts within the 8:00 a.M.-8:00 p.M. EET coverage window.
Job responsibilities
- Own assigned security alerts, incidents, and escalated tickets by conducting triage, cross-source investigations, and response activities across endpoints, identities, email, networks, cloud environments, and other relevant data sources using available security telemetry and investigation platforms.
- Analyze endpoint activity to identify indicators of compromise and adversary behaviors, including malicious execution, persistence, privilege escalation, and lateral movement.




- Investigate suspicious user and identity activity by analyzing Microsoft Entra ID authentication logs, sign-in activity, access patterns, anomalies, and other identity-related telemetry.
- Use SentinelOne Singularity Data Lake and SDL PowerQuery to perform advanced searches, correlate events, analyze threats, and support security investigations.
- Develop and validate investigation hypotheses using structured incident response, threat hunting, and forensic analysis methodologies.
- Execute containment, eradication, and recovery activities while coordinating with relevant technology owners and stakeholders to validate findings, contain threats, and restore affected services in accordance with approved incident response procedures and playbooks.
- Document investigative actions, evidence, analysis, decisions, communications, containment measures, and recovery activities throughout the incident lifecycle.
- Prepare detailed P1 and P2 incident reports cov

📌 Cyber Security Services Senior Incident Response Analyst (Yunclillos)
🏢 Stefanini Emea
📍 Yunclillos