Senior Systems Administrator

eir Ireland; Dublin; On-site; EUR 85,000 - 115,000; Full time

Job summary

eir is seeking a Senior Systems Administrator to join its Managed Services Team in Dublin. You will operate within a multi‑customer, multi‑technology IT environment, handling incidents, changes and proactive engineering to maintain service quality.

The role demands 5+ years in enterprise IT, experience with Azure, VMware, Citrix and Hyper‑V, O365/Intune administration, Windows Server, and SAN storage. Strong networking and ITIL knowledge are also essential.

Qualifications

• 5+ years in a System Administrator/Engineered role in Enterprise or Managed Services.
• Virtualisation: Azure, VMware, Citrix, Hyper-V.
• O365 and Intune administration; Windows Server environments.
• Dell and HPE SAN storage administration; basic networking.

Responsibilities

• Provide incident resolution, change management and governance per ITIL.
• Collaborate with technical experts and management to optimise client solutions.
• Maintain documentation and knowledge management; write user guides.
• On‑call support in rotating schedule; coordinate with 3rd parties as needed.
• Lead and mentor teammates; ensure service levels and client satisfaction.

Skills

Azure

VMware

Citrix

Hyper-V

O365

Intune

Windows Server

SAN Storage

Networking

ITIL

Communication

Tools

Dell Storage

HPE SAN

Job description

Role Title: Senior Systems Administrator

Business Area: Service Operations

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.