Back End Developer

Mantu; Montreal (administrative region); Hybrid; CAD 70,000 - 110,000; Full time

Job summary

Mantu in Montreal, Canada, seeks an Intermediate Back-end Developer to help modernize critical platforms. You will work in Agile teams on Java back-end development and some React work, following a build it, run it approach.

The role emphasizes crafting scalable microservices with Spring Boot, JMS, IBM MQ, Kafka, and REST APIs, while integrating DevOps practices and automated testing. French fluency is required; English is an asset.

Qualifications

• 80% Java back-end development and 20% React.
• Strong hands-on expertise with Java, Spring Boot, microservices architecture, API development, and application integration.
• Experience with messaging and event-driven technologies such as JMS, IBM MQ, and Kafka.
• Good understanding of AWS Cloud, AWS EKS, Kubernetes, infrastructure as code, application security, KMS, SSO, and data encryption.
• Proficiency with Git, Jenkins, Maven, Nexus, JUnit, automated testing, code reviews, and DevOps practices.
• Professional fluency in French, spoken and written, with strong collaboration, problem-solving, technological curiosity, and interest in AI tools that accelerate software delivery.

Responsibilities

• Design, develop, maintain, and enhance Java-based microservices, APIs, and service-oriented architectures.
• Contribute to the development and integration of solutions using Spring Boot, JMS, IBM MQ, Kafka, and REST APIs.
• Participate in large-scale technology modernization initiatives and collaborate with architects and design teams to improve application solutions.
• Develop high-quality, secure, and testable software while contributing to automated testing, code reviews, and DevOps practices.
• Support production applications using a build it, run it approach, including troubleshooting, root-cause analysis, and continuous improvement.
• Participate in Agile ceremonies and contribute to delivery automation, deployment pipelines, technical documentation, and knowledge sharing.

Skills

Java

Spring Boot

Microservices

API development

JMS

Kafka

IBM MQ

AWS Cloud

Kubernetes

Git

Jenkins

Maven

Nexus

JUnit

DevOps

Robot Framework

ReadyAPI

Postman

French (spoken and written)

Tools

Jira

Confluence

Job description

Work model: Hybrid, 2 days on site per week

Languages: French required, English is an asset

Position summary

Our client is looking for an Intermediate Back-end Developer to contribute to the modernization of critical business platforms and the evolution of strategic application solutions.

The successful candidate will work within Agile, multidisciplinary teams to develop new features, modernize service-oriented architectures, improve existing applications, and support production systems using a build it, run it approach.

The role will focus approximately 80% on Java back-end development and 20% on React.

Main responsibilities

• Design, develop, maintain, and enhance Java-based microservices, APIs, and service-oriented application architectures.
• Contribute to the development and integration of solutions using Spring Boot, JMS, IBM MQ, Kafka, and REST APIs.
• Participate in large-scale technology modernization initiatives and collaborate with architects and design teams to improve application solutions.
• Develop high-quality, secure, and testable software while contributing to automated testing, code reviews, and DevOps practices.
• Support production applications using a build it, run it approach, including troubleshooting, root-cause analysis, and continuous improvement.
• Participate in Agile ceremonies and contribute to delivery automation, deployment pipelines, technical documentation, and knowledge sharing.

Qualifications

• Intermediate-level experience with approximately 80% Java back-end development and 20% React.
• Strong hands-on expertise with Java, Spring Boot, microservices architecture, API development, and application integration.
• Experience with messaging and event-driven technologies such as JMS, IBM MQ, and Kafka.
• Good understanding of AWS Cloud, AWS EKS, Kubernetes, infrastructure as code, application security, KMS, SSO, and data encryption.
• Proficiency with Git, Jenkins, Maven, Nexus, JUnit, automated testing, code reviews, and DevOps practices. Experience with Robot Framework, ReadyAPI, or Postman is an asset.
• Professional fluency in French, spoken and written, with strong collaboration, problem-solving, technological curiosity, and interest in artificial intelligence tools that accelerate software delivery.

Knowledge of Jira and Confluence is considered an asset. English is not required, but it would be an advantage.