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Eircom

Senior Systems Administrator

Eircom

Full-timeOn-sitePosted 12 October 2026
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Job description

About This Role: Due to the continued expansion of eir business, we are now seeking to recruit an experienced Senior Systems Engineer who will become an integral part of our Managed Services Team, working in an evolving and exciting multi customer, multi technology IT environment. Why This Role: eir Business is the B2B division of eir and one of Ireland's leading providers of telecommunications, technology, cloud, cybersecurity, managed IT and workplace solutions. Supporting organisations of all sizes, from SMEs to large enterprises and public sector bodies, eir Business delivers secure, end-to-end connectivity and digital transformation services that help customers operate more efficiently, securely and effectively. Leveraging Ireland's largest mobile network, extensive fixed-line infrastructure, cloud capabilities and 24/7 expert support, eir Business partners with customers to design, implement and manage technology solutions that enable innovation, productivity and business growth. Expectations From The Role: Working in a growing Managed Services team with procedures based on ITIL Framework and governed by ISO 20000 Work with technical experts and business managers to support and when appropriate input into recommendations to optimise client solutions Investigation and Diagnosis - establish failing component, confirm impact, identify any events that may have been a contributing factor Resolution and Recovery, reducing impact were possible Senior infrastructure escalation point for other ICT support teams Coordinate with other ICT teams or 3rd parties when required. Provisioning of Servers and Storage in VMware or Azure Provide On Call Support in a rotating team Write efficient, easy to follow user guides and documentation and maintain a clear focus on building knowledge management Assess infrastructure changes, raise awareness for potential impacts and play a key role in change management governance Requirements For A Successful Application: 5 + years previous experience working as a System Administrator in an Enterprise or Managed Services environment. Virtualisation technologies such as Azure, VMware, Citrix, and Hyper-V O365 and Intune administration Microsoft Windows Server Enterprise environments Dell and HPE SAN Storage administration An understanding of networking to be capable of identifying network issues Excellent communicator, comfortable managing the expectations of senior technical staff as well as senior management ITIL knowledge and experience The Successful Candidate Has a passion for networking technologies and enjoys diagnosing and resolving complex challenges Works effectively within teams and collaborates with a wide range of stakeholders Provides technical leadership and mentorship to colleagues Shows strong determination in resolving major incidents and completing projects successfully Is confident in handling high severity network incidents and contributing to timely resolution Is customer focused, deadline driven, and capable of delivering results within SLA based environments Certifications in VMware, Microsoft, Citrix, HPE and Dell technologies preferrable Others: About eir Our purpose is to connect for a better Ireland. Our ambition is to be the number one choice for telecommunications and technology solutions, delivering for our customers today and into the future. Our new values and behaviours reflect both who we are and who we strive to become. They are the way that we bring our purpose to life in eir. We are committed to creating an inclusive and supportive work environment. If you require any reasonable adjustments during the application or interview process, please let us know, and we will work with you to meet your needs. If successful in the interview process, eir reserves the right to conduct appropriate suitability checks in relation to prospective employees including but not limited to reference checking and/or other searches using publicly available information. Apply Now!

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