Microsoft Security Specialist Technician (Sentinel, XDR, Defender)

Job Description

We are looking for a cybersecurity specialist with extensive experience in Microsoft technologies, particularly in the advanced deployment and operation of Microsoft Sentinel, XDR, and other solutions within the Defender ecosystem. The selected candidate will be responsible for protecting client data and infrastructures by developing defense strategies, managing incidents, and ensuring compliance with security best practices, Zero Trust principles, and applicable regulations.

Key Responsibilities

• Administration, optimization, and daily operation of Microsoft Sentinel (SIEM/SOAR) and the Defender suite (Defender for Endpoint, Identity, Cloud Apps, Office 365).
• Management, response, and analysis of security incidents, from advanced detection to closure and remediation.
• Development and tuning of detection rules, analytics, playbooks, and automations in Sentinel and XDR.
• Implementation of conditional access policies and Zero Trust strategies in Entra ID (Azure Active Directory).
• Hardening of Microsoft 365, Azure, and hybrid environments, including vulnerability management and secure configurations.
• Integration of data sources, endpoint telemetry, networks, and identities, as well as onboarding of new systems into the SIEM.
• Proactive threat hunting, forensic analysis, reporting, and preparation of technical recommendations for clients.
• Continuous updates on emerging threats and participation in improvement plans and internal training.