Senior Windows & Mac IT Support Engineer

About the role

We are seeking a Senior Windows & Mac IT Support Engineer to join the End User Computing team of a leading Irish client. You will provide advanced technical support across Windows and macOS environments, ensuring a secure and reliable experience for all end users.

Key responsibilities

• Deliver advanced support via phone, email, remote tools and ticketing systems for Windows and Mac devices.
• Troubleshoot complex hardware, software, OS and application issues.
• Administer Microsoft 365, Active Directory, Azure AD, Exchange and related enterprise applications.
• Manage user provisioning, permissions, group administration and access controls.
• Deploy, configure and maintain desktops, laptops, mobiles and peripherals throughout their lifecycle.
• Perform software deployment, patch management and endpoint administration using enterprise tools.
• Investigate system alerts, identify root causes and escalate when necessary.
• Assist with LAN/WAN network troubleshooting in collaboration with infrastructure teams.
• Maintain technical documentation, knowledge‑base articles and user training material.
• Support endpoint security initiatives, vulnerability remediation and patch compliance.
• Participate in incident response, disaster recovery testing and on‑call rotations.

Required profile

• 4‑5+ years of experience in Windows IT Support, Service Desk or End‑User Computing.
• Hands‑on experience supporting both Windows and macOS operating systems.
• Proven background with Microsoft 365, Active Directory, Azure AD and Exchange.
• Solid understanding of networking fundamentals (DNS, DHCP, TCP/IP, VPN).
• Experience working within structured ITSM frameworks.
• Strong problem‑solving abilities and the capacity to prioritize in a fast‑paced environment.
• Excellent communication and customer‑service orientation.

Required skills

• Windows OS
• macOS
• Microsoft 365
• Active Directory
• Azure Active Directory
• Exchange
• Software deployment and patch management tools
• Endpoint management solutions
• ServiceNow or Jira Service Management
• DNS, DHCP, TCP/IP, VPN