Sr Software Engineer

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. Job Summary Triages, designs, and develops features and fixes for the Connetic payments platform. Works within the product engineering team with a primary focus on customer issues and platform enhancement. Job Responsibilities Diagnose and Fix production defects across a distributed Java/Spring Boot microservices platform Own issues end to end - from reproduction through root cause analysis to deployed fix, coordinating with feature teams when domain expertise is needed Work from a prioritized backlog of bugs and tech debt items when not handling active escalations, driven by product prioritization Triage incoming issues by severity and business impact, escalating or pulling in the right people when needed Join incident bridges as needed, contributing diagnostics, context, and resolution paths Coordinate across teams (Product Management, Professional Services, Operations, scrum teams) to keep issues moving toward resolution Identify recurring defect patterns and advocate for systemic fixes with feature teams and product Help shape the support function contribute to processes, rotation models, and operational standards as this team matures Independently designs, develops, tests and delivers high quality software/solutions. Provides direct estimates, such as time, percentage of project completion, etc. to lead and/or manager Researches and resolves reported systems software problems efficiently and accurately while adhering to internal software management standards and procedures Maintains detailed knowledge of software, underlying network and system software, and dependencies Provides guidance and subject matter expertise to the development organization Perform other duties as assigned Understand and adhere to all corporate policies to include but not limited to the ACI Code of Business Conduct and Ethics Knowledge, Skills and Experience required for the job Bachelor's degree in computer science or related field or equivalent software development experience 5+ years of experience in software engineering, production support engineering, or a similar hands‑on technical role Strong debugging and troubleshooting skills in distributed systems - comfortable with log analysis, tracing, and root cause investigation Proficiency in Java and experience working within microservices architectures Ability to read, understand, and modify code across unfamiliar services Clear written and verbal communication with both technical and non‑technical audiences Comfort working across multiple issues with varying urgency Self‑directed and resourceful; able to operate effectively with ambiguity as the team and processes are still forming Preferred Knowledge, Skills and Experience needed for the job Experience with Kubernetes and container‑orchestrated environments Familiarity with event‑driven / choreographed microservice patterns and messaging systems (e.g., NATS or similar) Experience with MongoDB or other document‑oriented databases Familiarity with frontend technologies (Angular / JavaScript) for end‑to‑end debugging Background in payments, fintech, or high‑availability transaction processing Experience with observability tooling (OpenTelemetry, Grafana, or equivalent) Prior experience in L3 support, escalation engineering, or customer‑facing technical roles Work Environment Standard Work Environment Majority time spent on PC (Phys. Req.) Travel required, may be domestic or international Applicants must be currently authorized to work in the United States on a full‑time basis. This position does not offer sponsorship for employment visa status or work permit now or in the future. Equal Opportunity Employment 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. #J-18808-Ljbffr ACI Worldwide