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 an Intern Software Engineer (with Java) in Timisoara, Romania you will join a diverse, passionate team within PRM department, dedicated to powering the world’s payments ecosystem!
PRM is a Fraud Detection engine, based on neural networks and database rules. It is used by banks and financial institutions to identify financial transactions sent by fraudsters instead of legitimate cardholders, based on configurable rules and spending patterns. It is designed for maximum performance and availability, being able to process thousands of online transactions per second.
This is an excellent opportunity for early-career engineers who are passionate about problem-solving, learning from experienced developers. If you are interested in helping people protect their money from fraudsters and passionate about building high-performance complex systems, come and join us!
Job Summary:
Play a key role in supporting and enhancing PRM product. Working within an agile environment, you will be responsible for resolving bugs, implementing minor enhancements, and ensuring the stability and performance of our product.
A typical day at ACI for an Intern Software Engineer is:
- Participating in the design, development, testing, and delivery of high-quality software
- Creating and reviewing unit and integration tests, executing tests, and analyzing results
- Supporting the investigation and resolution of customer-reported issues
- Implement small-scale enhancements and configuration changes.
- Document technical solutions and contribute to knowledge-sharing within the team.
- Collaborating closely with teammates in an Agile, cross-functional environment
- Performing other related duties as assigned
- Understand and adhere to all corporate policies to include but not limited to the ACI Code of Business Conduct and Ethics.
- Understands and complies with Risk Management program requirements including identification of risks, key controls, and control testing as applicable to their responsibilities.
Knowledge, Skills and Experience needed to succeed in this role:
2–3 years of completed coursework in Computer Science or a related field
On track to graduate within the next 1–2 years
Java and/or Angular
Familiarity with version control systems (e.g. Git)
Understanding of software development fundamentals and debugging techniques.
Strong analytical and communication skills.
Eagerness to learn and grow in a collaborative team environment.
Database (Oracle, MS SQL) and customer-facing experience are a plus.
Ability to work in a multi-cultural environment and geographically distributed team.
Proficient English level
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 Romania 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
- 2-3 years of completed coursework in Computer Science or related field
- On track to graduate within the next 1-2 years
- Java and/or Angular
- Familiarity with version control systems (e.g. Git)
- Understanding of software development fundamentals and debugging techniques
- Strong analytical and communication skills
- Eagerness to learn and grow in a collaborative team environment
- Database (Oracle, MS SQL) and customer-facing experience
- Ability to work in a multi-cultural environment
- Proficient English level
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.







