Your Mission
As a Security Analyst Level 1, you are the first line of defense within our 24x7 Managed Detection & Response (MDR) operations, part of the Cyber Fusion Center (CFC) / SOC. Your mission is to monitor, triage, and validate security alerts, ensuring timely escalation of confirmed threats while maintaining high operational quality across a multi-client SOC environment .
You will operate within clearly defined procedures, using modern security tooling and AI-assisted workflows to improve investigation efficiency, documentation quality, and learning velocity—while adhering strictly to escalation paths, data-handling rules, and security policies. You are based in Madrid, Spain, working a 24/7 shift rotation (morning, evening, night, and weekends) in a permanent, full-time role, reporting to the SOC Manager within a team of 15-20 L1 Analysts.
Your responsibilities will be:
- General responsibilities
- Monitor and triage security alerts generated by SIEM, EDR/XDR, firewalls, ICS/OT,



and other security technologies to determine if further investigation or customer action is warranted.
- Perform first-level incident analysis, validation, and classification following SOPs and playbooks.
- Escalate confirmed, suspicious, or complex incidents to Tier 2 with clear, structured, and complete documentation (what happened, evidence, scope, actions taken, recommended next steps).
- Respond to alerts and tickets within defined SLAs and document all investigation steps accurately in the ticketing system.
- Adhere to internal policies, procedures, and security best practices to protect customer and company data.
- Participate in shift handovers, ensuring continuity of investigations and clear ownership of next actions.
- Contribute to customer satisfaction by handling customer interactions professionally, communicating critical findings, providing accurate information, and ensuring requests are routed to the appropriate teams for timely resolution and support.
- Maintain str

📌 Security Analyst Tier 1 (Chamartín)
🏢 Kudelski Security
📍 Chamartín