Job Description



Join Us as We Make Possibilities Happen

Every action we take as 1ACI redefines what’s possible. As Innovators, we Envision possibilities. As Developers, we Build possibilities. As Leaders, we Empower possibilities.

At ACI, we’re not just driving payments at the speed of change.

We’re Making Possibilities Happen.

Our people are the core of our business. Our 1ACI team represents a globally diverse, passionate and dedicated group of thousands of individuals around the world who share a common commitment to making our customers successful by driving the future of payments.   As a  System Engineer  in  Limerick, Ireland  you can help make possibilities happen.

Implements, configures and plays a role in the design of complex systems for internal and external customers. Assists in performing analysis on existing systems as well as system maintenance. Determines system specifications, input/output processes and working parameters for hardware/software compatibility. Coordinates design of subsystems and integration of total system. Identifies, analyzes and resolves program support deficiencies. Develops and recommends corrective actions. Normally receives general instructions on routine work, detailed instructions on new projects or assignments.


Operational maintenance and management of real-time payments systems.

Deployments of software updates / upgrades to various levels of the application stack.

Troubleshooting and analysis of platform issues and message flows for real-time payments.

Working across teams for timely delivery of projects.

Report software issues to Product Development and work with PD to advise solutions which adhere to operational standards

Participates in engineering and configuring routine and complex technical solutions for applications/systems implementations and upgrades based on specific business requirements. 

Solutions may be new, existing, in-house, third party or a combination.

Engineers, configures, and assists in the architecting of moderately complex technical solutions for applications/systems implementations and upgrades based on specific business requirements. 

Understand and Adhere to all Corporate Policies to include but not limited to ACI Code of Ethics and Global Information Security.

Perform other duties as assigned.




Bachelors degree in Computer Science or equivalent experience.
2+ years of technology design, architecture, infrastructure experience or related experience.
Experience with configuring and troubleshooting development and production environments.

General knowledge of Linux OS – Red Hat

Linux shell and python scripting skills

Experience with middleware components MQ, Apache, JBoss, Java servers etc.

General troubleshooting skills and log analysis.

Automation with Ansible, Groovy and Jenkins.

Containerization & Docker

Monitoring with Zabbix.


Benefits:  In return for your expertise, we offer challenge, opportunity, and an excellent compensation and benefits package in a casual environment.  

Are you ready to help us transform the world of electronic payments? To apply today, visit our web site at  and use job code  19002944.

ACI Worldwide is an AA/EEO employer in the United States, which includes providing equal opportunity for protected veterans and individuals with disabilities, and an EEO employer globally.


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