For our client, an Irish company based in Dublin city centre we are looking for aSenior Systems Operations EngineerThis is a senior backend systems and applications operations role with responsibility for reliability, security, compliance, and automation across a Microsoft hybrid environment.The right candidate must have in depth M365, Entra ID/AD and SharePoint On Prem experience.This is a permanent position, hybrid work structure in Dublin 2Key responsibilities:Provide Level 3 support for critical applications ( not end user support)Diagnose and troubleshoot complex issuesManagement of multiple Microsoft 365 tenants (Exchange Online, SharePoint Online, OneDrive for Business, Teams, Intune, Power Platform, Power BI, and related applications - Azure AD (Entra ID) infrastructure, Exchange on-prem, and SharePoint on-prem)Administer and manage on-premise systems and applicationsMonitor, verify, and maintain daily processes, including logs, alerts, and maintenance plans.Develop and maintain comprehensive documentation and training materials, Junior staff mentoringRequirements:5+ years of relevant experience in Systems Support rolesStrong technical background in Microsoft 365, Azure AD (Entra ID), Active Directory, Exchange, SharePoint, OneDriveExcellent communication, report writing, organizational, and interpersonal skills.Experience mentoring junior staffKnowledge of ITIL standards to ensure compliance with governance policies.please note that we can only accept applications from candidates fully eligible to work in Ireland