Sr Software Engineer

Powering the worlds payments ecosystem

ACI powers the payments ecosystem globally and you power ACI. Youll 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 Sr. Software Engineerin Norcross GA you will join a diverse passionate team dedicated to powering the worlds payments ecosystem!

Position Summary

We are seeking an experienced Senior Software Engineer to join the MTS Development team responsible for one of the industrys most critical high-value payments platforms. This role will focus on maintaining enhancing and modernizing core payment processing capabilities while supporting regulatory mandates customer commitments platform resiliency and long-term product sustainability.

The ideal candidate will be a strong software engineer with experience in complex enterprise applications payment systems mission-critical production support and large-scale modernization initiatives.

Key Responsibilities

• Design develop and maintain core MTS platform capabilities.
• Deliver customer and regulatory commitments including payment network mandates.
• Participate in production issue resolution and root cause analysis.
• Support modernization initiatives including 64-bit migration ISO 20022 structured address security and platform enhancement programs.
• Collaborate with Product Management Professional Services Quality Engineering and Customer Support teams.
• Act as a technical mentor and support knowledge transfer initiatives.
• Drive engineering excellence through automation testing observability and quality improvements.
• Leverage AI-assisted engineering tools to improve productivity and code quality.

Required Qualifications

• 8 years of software development experience.
• Strong Java and enterprise application development experience.
• Experience working with large-scale transaction processing platforms.
• Experience debugging complex production issues.
• Strong understanding of software architecture integration patterns APIs and database technologies.
• Experience with secure software development practices.
• Excellent communication and collaboration skills.

Preferred Qualifications

• Payments industry experience (Fedwire CHIPS SWIFT ISO 20022).
• Experience supporting Tier-1 financial institutions.
• Experience with cloud migration and modernization initiatives.
• Knowledge of high-availability and mission-critical systems.
• Experience using AI engineering tools such as Copilot Cursor Claude or equivalent.

Success Measures

• Successful delivery of roadmap and mandate commitments.
• Reduction in production incidents and resolution time.
• Increased automated test coverage.
• Effective knowledge transfer and documentation.
• Contribution to long-term platform sustainability.

Applicants must be currently authorized to work in the United Stateson 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 packageall 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 atJob ID (Requisition #19608)

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 ( / @). The ACI Worldwide recruitment team will always follow official channels and will never request payment.

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