Senior Mainframe Engineer - Payments, Dublin

Location/Office Policy:  Central Park, Dublin 18 / Hybrid - 3 days per week in office

• Would you like to bring your breadth of mainframe expertise to a diverse, dynamic environment that supports our customers day to day banking needs while also designing and developing exciting banking solution for their future?
• Are you ready to design, deliver, and optimise high‑availability payment solutions that power real customer outcomes every day?
• Do you thrive in fast‑paced environments where problem‑solving, incident management, and continuous engineering improvement are part of your daily impact?

What is the Role:

Working within the Homes Tribe, the successful candidate will provide technical leadership to a cross-functional squad in changing and supporting the IT solutions for handling all payments services offered to EBS customers. Your payments and engineering insights will be key to achieving business outcomes and to supporting critical, always-on information systems.

You will assess the impact of user stories, defined detailed solutions, participate in solution development and review the squad’s technical deliverables. You will also champion continuous improvement in the squad’s engineering landscape and best practices.

Key accountabilities:

• Provide technical leadership in delivering and supporting IT solutions that keeps things simple for EBS customers in their daily payment service’s needs.

• Collaborate with the key stakeholders across AIB IT and EBS business to deliver sustainable technical solutions that put our customer payment needs first.

• Leading technical impact assessment, solution design and development.
• Managing and resolving IT incidents and participating in a 24x7 on-call rota.
• Assessing the technical impacts of new change requirements, removing complexity and preparing high- and low-level solution designs.
• Reviewing other colleagues’ technical deliverables.
• Maintaining a focus on non-functional quality requirements in security, performance, testability and sustainability of technical deliverables.
• Maintaining a focus on knowledge management and succession planning.
• Coordinating the workload of the squad’s engineers.
• Providing technical insight and direction on the EBS payments systems / interfaces; and on best-in-class approaches to IT modernisation and automation.
• Ensuring adherence to the IT Delivery Standards.

What you Will Bring:

• Minimum of 7 years’ experience in IBM mainframe development
• Solid background in financial services, with particular knowledge of SEPA payments
• Expert in Z/OS, COBOL, CICS, XPED, VSAM, MQ, JCL, TSO and EARL.
• Experienced in designing, developing, implementing and optimising mainframe applications.
• Support of critical batch cycles and high-availability systems, with proven record in troubleshooting high-severity production issues.
• Strong business and technology stakeholder communications and negotiation.
• Cross-squad collaboration.

Why Work for AIB

We are committed to offering our colleagues choice and flexibility in how we work and live and our hybrid working model enables our people to balance their time between working from home and their designated office, subject to their role, the needs of our customers and business requirements.

Some of our benefits include;

• Market leading Pension Scheme
• Healthcare Scheme
• Variable Pay
• Employee Assistance Programme
• Family leave options
• Two volunteer days per year

Please click here for further information about AIB’s PACT – Our Commitment to You.

Key Capabilities

• Application Design & Development
• Investigating & Reporting
• Depth of Technical knowledge
• Collaborates 
• Customer First

If you are not sure about your suitability based on any aspects of the role advertised, we encourage you to please contact the Recruiter for this role, Sarah Lyons, at careers@aib.ie  for a conversation.

AIB is an equal opportunities employer, and we pride ourselves on being the first bank in Ireland to receive the Investors in Diversity Gold Standard accreditation from the Irish Centre for Diversity. We are committed to providing reasonable accommodations for applicants and employees. Should you have a reasonable accommodation request please email the Talent Acquisition team at careers@aib.ie

Disclaimer: 

Unsolicited CV’s sent to AIB by Recruitment Agencies will not be accepted for this position. AIB operates a direct sourcing model and where agency assistance is required, the Talent Acquisition team will engage directly with our recruitment partners.  

Application deadline : Thursday 2nd April 2026