Java Software Engineer

Toronto, ON
On-site
Posted Oct 22, 2026
1 position

Opens LinkedIn

Employment type: Full-time
Experience level: Senior · 5+ years
Posting language: English
Working hours: 40 hours per week
Seniority: Mid-Senior level
Application method: Direct apply is available

Job summary

Design, develop, and maintain scalable Java microservices and reactive applications, including REST APIs and event-driven integrations using IBM MQ and Apache Kafka. Collaborate across teams, uphold code quality through reviews and documentation, troubleshoot production issues, and contribute to optimization and automation.

Job details

Job Description: Java Microservices Developer Job Responsibilities Designing, developing, and maintaining high-performance, scalable microservices using Java 17 and the Spring Boot framework. Building reactive and non-blocking applications using Spring WebFlux to handle high-concurrency workloads efficiently. Developing and consuming RESTful APIs, following industry best practices and ensuring proper documentation. Implementing event-driven architecture using IBM MQ and Apache Kafka for seamless asynchronous communication between services. Collaborating with cross-functional teams, including frontend developers, architects, and product owners, to deliver end-to-end solutions. Writing clean, maintainable, and well-documented code while adhering to coding standards and best practices. Participating in code reviews, providing constructive feedback, and ensuring code quality across the team. Troubleshooting production issues, performing root cause analysis, and implementing effective fixes. Contributing to continuous improvement initiatives by identifying opportunities for optimization and automation. Skill Matrix Mandatory Skills 1. Java 17 Expert-level understanding of Java 17 features, including records, sealed classes, pattern matching, and enhanced switch expressions. 2. Spring Boot Strong hands-on experience in building production-grade applications using Spring Boot. 3. Spring WebFlux Proficiency in developing reactive, non-blocking applications using Spring WebFlux and Project Reactor. 4. REST APIs Expertise in designing, developing, and securing RESTful APIs, with proper versioning and error handling. 5. Microservices Solid experience in microservices architecture, including service discovery, API gateways, circuit breakers, and distributed tracing. 6. IBM MQ Hands-on experience with IBM MQ for enterprise messaging and integration. 7. Apache Kafka Strong knowledge of Kafka for building event-driven systems, including producers, consumers, and stream processing. Good-to-Have Skills 1. MongoDB Experience with MongoDB for NoSQL database design, queries, and aggregation pipelines. 2. AWS Cloud Familiarity with AWS services such as EC2, S3, Lambda, ECS, and RDS. 3. OpenShift Experience deploying and managing applications on OpenShift or similar container platforms. 4. Kubernetes Knowledge of Kubernetes for container orchestration, deployments, and scaling. 5. Helm Experience with Helm charts for Kubernetes application packaging and deployment. 6. Harness Familiarity with Harness for continuous delivery and deployment automation. 7. Git & Bitbucket Proficiency in version control using Git and collaboration via Bitbucket. 8. JIRA Experience using JIRA for Agile project management and issue tracking. 9. Gradle Hands-on experience with Gradle for build automation and dependency management. 10. Lightspeed Familiarity with Lightspeed for development acceleration. 11. Kibana Experience with Kibana for log visualization, monitoring, and troubleshooting.

What you’ll do

Requirements

Requires expert-level Java 17 knowledge and strong hands-on experience with Spring Boot, Spring WebFlux, REST APIs, microservices architecture, IBM MQ, and Apache Kafka. Additional desired experience includes MongoDB, AWS, OpenShift, Kubernetes, Helm, Harness, Git and Bitbucket, JIRA, Gradle, Lightspeed, and Kibana.