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Senior Java Payment Systems Engineer

Excelon Solutions LLCUnited States🇺🇸United StatesPosted Sep 19, 2026

Why This Role Stands Out

This is an exciting opportunity to leverage your deep expertise in Java and payment systems to build and support critical financial infrastructure, offering significant career growth within a reputable company. You'll thrive here if you possess a strong background in payment processing, Java development, and a passion for creating secure, high-performance solutions. Apply now to make a substantial impact in the world of payment technology.

Quick Overview

Seniority
Mid Senior
Work mode
On Site
Location
United States
Posted
4 days ago
MicroservicesSpringSpring BootJava

Job Description

Position: Senior Java Payment Systems Engineer.

Location: Midwest, USA (Onsite presence required)

Duration: Long term contract

Job Summary

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.

Required Skills

  • 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.

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