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Epsilon Solutions LTD

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Sr. Java backend Developer

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Summary

Senior Java backend developer building integration solutions for commercial banking platforms in Toronto (4 days/week onsite, not negotiable). Day-to-day involves designing REST APIs and microservices with Java and Spring Boot, containerizing apps for OpenShift, and working with databases and messaging systems like Kafka and MQ.

Job Description

Job Description

Role Name:
Sr. Java backend Developer Location:Toronto / 4 days a week on site not negotiable, F2F interview required (L1 or/and CI)Background check MANDATORYJOB DESCRIPTION:Java Backend Developer - Job Description

The Opportunity

We're looking for an experienced Java Backend Developer to join our dynamic team. You'll play a crucial role in delivering innovative integration solutions for our Commercial Banking Platforms, utilizing cutting-edge technologies. This is an exciting chance to contribute to high-impact projects within an Agile environment, where you will shape the future of our application platforms and collaborate with talented individuals.

Key Responsibilities

Design, develop, and deploy robust and scalable integration solutions using Java and Spring Boot
Build and maintain RESTful APIs and microservices to support our business platforms
Work collaboratively within an Agile team, participating in all phases of the software development lifecycle
Create containerized applications for deployment on OpenShift
Ensure the performance, security, and reliability of backend systems
Troubleshoot and resolve complex technical issues

Required Qualifications (Must-Have)

8 years of experience in backend development
Strong working knowledge of Java and Spring Boot
Extensive experience with REST APIs and Microservices Architecture design
Experience working with databases (e.g., Oracle, PostgreSQL)
Experience with Messaging Technology (e.g., Kafka, MQ)
Proven ability to build containerized applications
Exposure to Cloud Platforms (AWS/Azure/OpenShift/GCP)

Preferred Qualifications (Nice-to-Have)

Experience with BPMN technologies (Camunda BPMN)
Experience with DMN technologies (Camunda DMN, Drools, or similar)
Proficiency in Python
Experience with front-end technologies (React)
Usage experience with AI Code Assistants (GitHub Co-Pilot or similar)

Skills

What Senior Backend jobs ask for — and how much of it you have →
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