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Sr Tax Accountant

ACI Worldwide
Irelandfull_timeVerifiedPosted 26 Mar 2026

About the role

Powering the world’s payments ecosystem

ACI powers the payments ecosystem – globally, and you power ACI.  You’ll innovate, collaborate, and grow – in an energetic technology culture with decades of proven success.  ACIers – in all roles and levels – are truly your colleagues and many are your friends. Our size and reach allow you to see the global impact of your work. You are visible, your talents are valued, and you are empowered to shape the future of payments.

As a Senior Tax Accountant­­­­­­­­­­­ in Limerick, Ireland, you will join a diverse, passionate team, dedicated to powering the world’s payments ecosystem!

This purpose of this Senior Tax Accountant­­­­­­­­­­­ is:

We’re looking for a Senior Tax Accountant to join our EMEA tax team at an exciting time of transformation. This is a hands‑on role with real ownership — combining technical tax work, cross‑border exposure, and the chance to shape how tax is done using automation and data.

You’ll work closely with finance, systems, and global tax colleagues to deliver accurate compliance and reporting, while also helping modernise our tax processes.

The successful candidate will support the finance & tax department to ensure the ACI group meets its financial, tax compliance and reporting obligations. This role requires a good knowledge of accounting principles, with exposure to tax accounting as an advantage. 

A typical day at ACI for a Senior Tax Accountant is:

  • Leading tax process improvements by developing system automations to streamline processes

  • Preparation of the US GAAP quarterly tax provision for European entities and prepare supporting schedules for US reporting purposes

  • Support international tax matters including transfer pricing, and Pillar Two

  • Identifying and executing withholding tax planning opportunities to minimise cash tax leakage and reduce effective tax costs.

  • Coordinate and direct outsource providers to complete the tax returns for European subsidiaries

  • Lead the preparation of documentation for Irish Research & Development Claims 

  • Leading VAT, Intrastat, VIES and other tax-related filings

  • Perform other duties as assigned.

  • Understand and adhere to all corporate policies to include but not limited to ACI code of ethics and global information security.

     

 

Knowledge, Skills and Experience required for the job: 

  • Degree in Accounting, Business, Finance or equivalent

  • Full or part accounting/tax qualification with a desire to complete same 

  • 3+ years experience in an accounting or tax environment

  • Proactive, self‑motivated approach with the ability to work independently and collaboratively

  • Highly Desired Skills:

    • ERP Systems (e.g. Oracle Fusion) 

    • Tax systems (e.g. Alphatax, Onesource tax provision) 

    • Demonstrated curiosity and openness to leveraging AI tools, automation, or emerging technologies to improve how tax work gets done 

 

Core Capabilities:

We seek colleagues who embody our core capabilities — these shape our culture and enable us to make a meaningful impact together:

  • Ensure Accountability: holding self and others accountable to meet commitments.

  • Drives Results: consistently achieving results, even under tough circumstances.

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Company

ACI Worldwide

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