Senior IT Systems Administrator

Senior IT Systems Administrator
Our Cork based client are  thriving IT Services provider & are now recruiting for an experienced Senior IT Systems Administrator to join their team. The Senior IT Systems Administrator will be responsible for designing, implementing, supporting, and maintaining IT infrastructure for a diverse portfolio of business clients.
The Senior IT Systems Administrator will have expertise across Microsoft technologies, cloud platforms, networking, cybersecurity, virtualization, and end-user support.
 
Key Responsibilities

• Design, deploy, and maintain client IT environments.
• Administer Windows Server environments and Active Directory services.
• Manage Microsoft 365 tenants, including Exchange Online, SharePoint, Teams, and Entra ID.
• Configure and maintain virtualization platforms such as VMware and Hyper-V.
• Monitor system performance, availability, and capacity planning.
• Deploy and support Microsoft Azure environments.
• Implement cloud migration projects.
• Manage hybrid cloud infrastructure solutions.
• Configure backup, disaster recovery, and business continuity solutions.
• Monitor cloud security and compliance requirements.
• Configure and support firewalls, switches, wireless networks, and VPN solutions.
• Troubleshoot complex networking issues.
• Maintain network security and performance.
• Document network infrastructure and configurations
• Implement and manage cybersecurity best practices
• Monitor and respond to security incidents.
• Manage endpoint protection, email security, and vulnerability remediation.
• Conduct security assessments and recommend improvements.
• Troubleshoot complex infrastructure and application problems.
• Deliver exceptional customer service to business clients.
• Communicate technical solutions clearly to both technical and non-technical stakeholders.
• Lead infrastructure implementation and migration projects.

 
Key Requirements:

• 5 plus years' experience in a Systems Administrator or Senior Infrastructure role.
• Strong experience with:
  • Microsoft 365 Administration
  • Windows Server (2016/2019/2022)
  • Active Directory and Group Policy
  • Microsoft Entra ID (Azure AD)
  • Exchange Online
  • Microsoft Azure
  • VMware vSphere and/or Hyper-V
  • Networking (TCP/IP, DNS, DHCP, VLANs, VPNs)
  • Firewall technologies
  • Backup and Disaster Recovery solutions
  • PowerShell scripting and automation
  • Endpoint security and cybersecurity best practices

• Proven experience managing multiple clients simultaneously.
• Experience delivering infrastructure and cloud migration projects.
• Strong troubleshooting and root-cause analysis skills.
• Experience with IT monitoring and remote management tools.
• Excellent communication and customer service skills.
• Strong problem-solving and analytical abilities.
• Ability to work independently and as part of a team.
• Highly organised with strong attention to detail.
• Ability to prioritise workloads in a fast-paced environment.

 
For further information please contact Loretta Flynn
[email protected]
086-1838380
INDPERM