Systems Engineering Linux Team, ITD

Position Description 

We are looking for an energetic and enthusiastic IT Professional to join our Linux Systems Engineering team within IT Service Delivery. IT Service Delivery designs, delivers and supports all activities associated with ESB’s IT strategy through innovative IT solutions. We operate one of the most technologically advanced IT and telecommunications infrastructures in the country running over 500 applications as well as being the largest SAP user in Ireland. The Systems Engineering Linux team is responsible for managing the Red Hat Enterprise Linux server infrastructure in ESB. This comprises over 850 servers, the majority of which run as virtual servers on over 100 hosts running VMware ESXi on Dell PowerEdge hardware. The team leverages a range of technologies in support of the infrastructure including:

• RHEL Versions 7, 8, 9 and 10
• Ansible Automation Platform
• OpenShift Containerisation & virtualisation
• Satellite server
• Bash/Ansible scripting
• VMware ESX HA and DR technologies (VMotion, SRM etc.)

This role will provide the opportunity to develop and enhance skills related to the above strategic SAP Solutions and Smart Metering infrastructure. It will also allow the successful candidate to further develop other skills such as stakeholder management, communication skills and leadership skills.

The successful candidate will work in the Systems Engineering team, which is responsible for the procurement, management, maintenance & monitoring of Red Hat Enterprise Linux server resources which host ESB’s mission critical SAP and business application systems.

Key Responsibilities

• Deploy, maintain and monitor Red Hat Enterprise Linux systems (physical, virtual and, cloud-hosted) to ensure high availability for business-critical applications.
• Troubleshoot and resolve production issues independently, escalating as and when necessary to senior team members or vendors.
• Administer Red Hat management tools such as Satellite and Ansible Automation Platform for patching, configuration and lifecycle management.
• Implement routine automation using Bash and/or Ansible to improve efficiency and reduce manual tasks.
• Apply cybersecurity best practices including patching, access control and system hardening to maintain compliance.
• Support hosting of SAP and database environments (SAP HANA, DB2, MaxDB, Oracle) on RHEL infrastructure.
• Maintain clear documentation and communicate effectively with stakeholders for audits, reporting and cross-team collaboration.

Experience and Qualifications

Essential

• At least 3 years' hands-on experience administering and supporting enterprise RHEL environments in a production setting, including troubleshooting, patching, security management, automation, and operational support.  
• Recognised third level qualification in Computing, Information Technology or a related discipline, or equivalent relevant experience.
• Proven ability to diagnose, troubleshoot and resolve complex production issues independently, with sound judgement on when to escalate.
• Practical experience using Red Hat management and automation tools, including Satellite, Ansible Automation Platform, Bash and Ansible (or equivalent technologies).
• Strong understanding of cybersecurity best practices in Linux environments, including patch management, system hardening, access control and vulnerability remediation.
• Effective communication, documentation and stakeholder management skills, with a collaborative approach to knowledge sharing and cross-functional teamwork.

Desirable 

• Experience hosting SAP HANA and related components in RHEL environments.
• Experience of working with Cloud platforms, preferably Azure.
• Knowledge and/or experience in containerisation and orchestration – Kubernetes or OpenShift platform administration.
• Red Hat Enterprise Linux (RHEL) certification or other relevant industry accreditation is desirable. 

Location

This position will be based in 27 Fitzwilliam Street, Dublin 2.

Smart Working at ESB is designed to make ‘in-person’ time together as purposeful as possible while also enabling the effective use of digital tools and hybrid arrangements to preserve our commitment to flexibility. The successful candidate may work flexibly within the jurisdiction where they have been employed, with attendance at the workplace for in-person collaboration at least two days per week. All Smart Working arrangements are subject to regular review based on the operational requirements of the role, the team, and the business.

Reporting To

Linux Systems Engineering Team Leader, IT Delivery, Enterprise Services.

Why Work with Us?

• Opportunity to lead Ireland’s transition to net zero carbon future
• Career development through mentoring and training 
• Corporate Social Responsibility Opportunities
• Sports and Social Clubs
• Networking opportunities
• Credit Union
• Generous Pension
• Access to staff well-being programmes
• Generous parental leave entitlements
• Strong values-based and inclusive culture
• Strong commitment to diversity, equity and inclusion
• Great team environment working to our Core Values: Courageous, Caring, Driven and Trusted

Salary

€49,800 - €58,600 per annum (depending on experience)

Closing Date

15th September 2026

• Accountable and Ethical
• Collaborative
• Growing and Adaptive
• Proactive
• Respectful and Supportive

Notes

Your application will be held in reserve for 6 months should you be suitable for the role.

The successful candidate will be required to evidence their right to work in the Republic of Ireland prior to commencement of employment.