> Markdown version of [/jobs/ext/2167377-java-payment-systems-engineer](https://www.wearedevelopers.com/jobs/ext/2167377-java-payment-systems-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Java Payment Systems Engineer - **Company:** Excelon Solutions - **Location:** Midwestern United States, United States - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Java (Programming Language), Payment Systems, Java Platform Enterprise Edition (J2EE), Transaction Processing (Computing), Spring-boot, ISO 8583, Restful APIs, Microservices - **Published:** August 21, 2026 - **Apply:** https://www.dice.com/job-detail/bef03c83-05d8-4086-a415-d110ed1dfecf ## About the Role * 8+ years of hands-on experience in Java application development. * Strong experience working with payment transaction processing or payment switching systems. * Expertise in Core Java, Java 8/11/17, Spring Boot, and Microservices. * Experience developing RESTful APIs and enterprise integrations. * Strong understanding of the payment transaction lifecycle. * Knowledge of ISO 8583 messaging standards. * Experience with card payments, EMV, ATM, and POS transaction flows. ## Description We are looking for an experienced Senior Java Payment Systems Engineer to design, develop, and support high-volume, real-time payment processing applications. The ideal candidate will have strong hands-on experience with payment switching platforms, transaction processing, and enterprise Java development. This role involves building secure, scalable, and high-performance payment solutions while supporting mission-critical financial transaction systems. ## Related Videos - [Rest API Antipatterns](https://www.wearedevelopers.com/videos/100208-rest-api-antipatterns) - [APIs and Architecture for scaling omnichannel payments](https://www.wearedevelopers.com/videos/90-apis-and-architecture-for-scaling-omnichannel-payments) - [REST In Peace: Why LLMs Can't CRUD](https://www.wearedevelopers.com/videos/100272-rest-in-peace-why-llms-can-t-crud) - [Enterprise-Cloud-Native - Fast-Paced Development & Deployment in a Highly Secure Banking Environment](https://www.wearedevelopers.com/videos/671-enterprise-cloud-native-fast-paced-development-deployment-in-a-highly-secure-banking-environment) - [Migrating half a million users to a new payment service provider](https://www.wearedevelopers.com/videos/730-migrating-half-a-million-users-to-a-new-payment-service-provider) - [40 Minutes to Build a Serverless COVID-19 REST and GraphQL APIs](https://www.wearedevelopers.com/videos/208-40-minutes-to-build-a-serverless-covid-19-rest-and-graphql-apis) ## Related Articles - [Top 10 Java Libraries](https://www.wearedevelopers.com/magazine/364-top-10-java-libraries) - [How We Built a Worry-Free System That Runs for 10+ Years – And What We’d Do Again](https://www.wearedevelopers.com/magazine/751-how-we-built-a-worry-free-system-that-runs-for-10-years-and-what-we-d-do-again) - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers) - [93 Java Interview Questions You Should Prepare For](https://www.wearedevelopers.com/magazine/14-93-java-interview-questions-you-should-prepare-for) - [Java Basics](https://www.wearedevelopers.com/magazine/122-java-basics) - [Best Paying Jobs in Technology](https://www.wearedevelopers.com/magazine/256-best-paying-jobs-in-technology)