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 Software Engineer in Athens, Greece you will join a diverse, passionate team, dedicated to powering the world’s payments ecosystem!
The purpose of the Software Engineer is:
The Software Engineer designs, develops, tests, and delivers high-quality software systems and applications. The role contributes to product enhancements and new feature development across backend and full-stack components. The majority of work is performed on a PC. Occasional limited travel may be required, both domestic and international.
A typical day at ACI for a Software Engineer is:
Design, develop, test, and deliver high-quality backend and full‑stack software solutions.
Create, review, and maintain technical deliverables across the stack, including API specifications, data models, and UI components, in alignment with established lifecycle methodologies.
Investigate and resolve customer-reported issues across services, APIs, databases, and user interfaces.
Maintain a solid understanding of application architecture, services/APIs, relational database design, and supporting infrastructure.
Manage software dependencies and build tooling required to deliver robust and maintainable solutions (e.g., Maven, Gradle, npm).
Exhibits good technical and business judgment and thorough understanding of how customers use the Company product when dealing with product requirements, complex design issues, and tradeoffs.
Knowledge, Skills and Experience needed to succeed in this role:
Higher education (Bachelor's degree) in Computer Science or related field.
3+ years of software development experience with Java and Spring Framework
Strong experience with relational databases and SQL.
Experience or familiarity with Kotlin and/or Groovy is a plus.
Exposure to modern frontend JavaScript frameworks or libraries; React experience is preferred.
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.
Customer Focus: building strong customer relationships and delivering customer-centric solutions.
Cultivate Innovation: creating new and better ways for the organization to be successful.
Collaborates: building partnerships and working collaboratively with others.
Courage: stepping up to address difficult issues, saying what needs to be said.
Applicants must be currently authorized to work in Greece on a full-time basis. This position does not offer sponsorship for employment visa status or work permit now or in the future.
In return for your expertise, we offer opportunities for growth, career development, and a competitive compensation and benefits package—all within an innovative and collaborative work environment.
Are you ready to help us transform the payments ecosystem? To learn more about ACI Worldwide, visit our web site at www.aciworldwide.com
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.
Important Notice About Recruitment Scams
Job seekers should be aware of ongoing recruitment scams where individuals or organizations impersonate legitimate companies to offer fake job opportunities. These scams often involve requests for personal information, payments, or interviews through unofficial channels. Please be cautious and verify any communications claiming to be from our company (www.aciworldwide.com / @aciworldwide.com). The ACI Worldwide recruitment team will always follow official channels and will never request payment.
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Skills Required
- Bachelor's degree in Computer Science or related field
- 3+ years of software development experience with Java and Spring Framework
- Strong experience with relational databases and SQL
- Manage software dependencies and build tooling (Maven, Gradle, npm)
- Experience or familiarity with Kotlin and/or Groovy
- Exposure to modern frontend JavaScript frameworks/libraries; React preferred
- Authorized to work in Greece full-time; no visa sponsorship provided
ACI Worldwide Compensation & Benefits Highlights
The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about ACI Worldwide and has not been reviewed or approved by ACI Worldwide.
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Healthcare Strength — Health, dental, and vision coverage are complemented by HSA options, disability insurance, AD&D, and wellbeing programs. Offerings span core medical protection with added wellness support.
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Retirement Support — A 401(k) with company match and pension/retirement options support long‑term savings. Additional programs such as an employee stock purchase plan contribute to financial security over time.
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Flexible Benefits — A flexible, hybrid office culture with work‑from‑home options and adaptable schedules supports work‑life balance. Paid time off and country‑tailored packages allow alignment of benefits to local needs.
ACI Worldwide Insights
What We Do
ACI Worldwide is a global software company that provides mission-critical real-time payment solutions to corporations. Customers use our proven, scalable and secure solutions to process and manage digital payments, enable omni-commerce payments, present and process bill payments, and manage fraud and risk. We combine our global footprint with local presence to drive the real-time digital transformation of payments and commerce.
