Senior Java Engineer - Real-Time Payments Platform

Ports North; O’Fallon (MO); On-site; USD 82,656 - 110,208; Full time

Job summary

Ports North in the United States is seeking a Sr Java Developer to design and build the next-generation Decision Management Platform, a real-time system scoring and approving billions of transactions. You will write code, run prototypes, and use AI coding tools daily to ship faster and with higher quality.

You will collaborate with senior engineers, architects, and product managers to deliver faster, more reliable, and cost-efficient software, aligning with enterprise architecture and compliance

Qualifications

• Bachelor's degree in information systems, information technology, computer science, engineering or equivalent.
• 7+ years of industry experience.
• Strong Java/J2EE and enterprise tech stack experience.

Responsibilities

• Develop enterprise applications using a Java technology stack with Angular or React as front-end technologies.
• Participate in gathering and refining business requirements.
• Ensure software designs align with enterprise architecture and leverage enterprise services.
• Ensure product development meets business needs.
• Apply standard development methodologies and ensure documentation.
• Support zero downtime production goals.
• Collaborate with business partners on product definition and roadmaps.
• Respond to operational and business concerns for future programs or enhancements.
• Ensure certifications and compliance requirements (PCI, GLBA, Safe Harbor, etc.).
• Drive performance engineering of the enterprise software architecture and provide guidance to other developers.
• Improve and expand the platform to be resilient, secure, and scalable.
• Use AI tools (e.g., Claude Code, Copilot) in daily development.

Skills

Java

J2EE

Spring 5

Hibernate

SQL

NoSQL

REST/SOAP

WebSphere

Tomcat

React/Angular

Maven

Gradle

Jenkins

LLM integration

Oracle

PostgreSQL

MongoDB

Prompt engineering

Education

Bachelor's degree in Information Systems / CS / Engineering

Tools

Maven

Gradle

Jenkins

Eclipse

WebSphere

Tomcat

Job description

Ports North in the United States is seeking a Sr Java Developer to design and build the next-generation Decision Management Platform, a real-time system scoring and approving billions of transactions. You will write code, run prototypes, and use AI coding tools daily to ship faster and with higher quality.

You will collaborate with senior engineers, architects, and product managers to deliver faster, more reliable, and cost-efficient software, aligning with enterprise architecture and compliance