Role:Office 365 Security EngineerLocation:Dublin WestType:Hybrid 2 days onsite a weekReporting:IT Security Manager / Head of CybersecurityRole Overview:We are seeking a skilled and detail-oriented Office 365 Security Engineer to design, implement, and maintain the security posture of our Microsoft 365 environment. The ideal candidate will have deep expertise in Office 365 security configurations, threat protection, identity and access management, compliance features, and Microsoft Defender products. This role is critical in ensuring the confidentiality, integrity, and availability of our cloud-based systems, while aligning with corporate security policies and industry best practices.THIS IS A BRAND NEW ROLE BASED IN WEST DUBLINTHIS ROLE IS PAYING €90,000 - €100,000 BASE SALARY AND PACKAGEKey Responsibilities:Configure and maintain Microsoft 365 security features (Defender for Office 365, Purview, Compliance Center, Azure AD, etc.)Implement and manage security policies, DLP (Data Loss Prevention), Conditional Access, and MFA (Multi-Factor Authentication)Monitor and respond to security alerts and incidents across the Microsoft 365 ecosystemConduct regular security assessments and audits of the Microsoft 365 environmentDevelop and implement procedures for email security, anti-phishing, anti-spam, and malware protectionCollaborate with IT and InfoSec teams to ensure security policies and controls are consistently appliedConfigure and manage Microsoft Purview (formerly Microsoft 365 Compliance Center) including retention, eDiscovery, and Insider Risk ManagementParticipate in incident response and forensics investigations related to Microsoft 365Provide input on Office 365 governance, security baselines, and best practicesStay up to date with new Microsoft security tools, features, and capabilitiesKey Exp:Minimum 6+ years of experience working with Microsoft 365 / Office 365 securityStrong knowledge of Microsoft 365 security architecture and tools:Microsoft Defender for Office 365Microsoft Defender for IdentityMicrosoft Defender for EndpointMicrosoft Purview (Compliance Center, DLP, Insider Risk)Microsoft Entra / Azure AD (including Conditional Access, Identity Protection, etc.)Experience with PowerShell scripting for automation and configurationExperience with Microsoft Sentinel or other SIEM toolsUnderstanding of regulatory requirements (e.g., GDPR, HIPAA, ISO 27001)