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We’re looking for an experienced Java Developer with strong hands-on expertise in modern Java development, microservices architecture, RESTful integrations, Kafka, and MongoDB. You’ll…
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HRConnects

Java Developer

Mississauga, ON, Canada

Salary Range: $120 - 130 000/ yr · Full-time

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Job details

Pay: Salary Range: $120 - 130 000/ yr
Job type: Full-time
Apply by: Nov 27, 2026
Experience: 9–12 years of professional experience.
Posting language: English
Posted: Oct 28, 2026

Original job description

Build and evolve scalable Java microservices that support reliable, high-performing business applications. In this role, you’ll work across APIs, messaging, databases, cloud platforms, and delivery pipelines while partnering with cross-functional teams to solve complex technical challenges.

Overview

We’re looking for an experienced Java Developer with strong hands-on expertise in modern Java development, microservices architecture, RESTful integrations, Kafka, and MongoDB. You’ll contribute throughout the development lifecycle - from design and implementation through testing, deployment, and production support.

Start Date: ASAP

Location: Mississauga. Hybrid- 3 days in office

Salary Range: $120 - 130 000/ yr

Key Responsibilities

Design, develop, and maintain Java-based microservices.
Build RESTful APIs using enterprise design standards, JSON, and OpenAPI/Swagger.
Apply service decomposition principles and define effective API contracts.
Develop and optimize SQL queries for transactional and reporting use cases.
Design and manage MongoDB schemas, indexes, queries, and aggregation workflows.
Develop Kafka producers and consumers, including effective partitioning approaches.
Ensure microservices meet high standards for availability, scalability, and performance.
Apply exception handling, logging, monitoring, and resiliency patterns.
Collaborate with Business Analysts, Architects, QA, and DevOps teams.
Participate in code reviews, unit testing, and defect resolution.
Support CI/CD pipelines, deployments, and production issue resolution.
Follow secure coding and compliance standards.

Qualifications

9–12 years of professional experience.
Strong hands-on development experience with Java 8, 11, or 17.
Experience with Spring Boot, Spring MVC, and Spring Data.
Practical experience designing and developing microservices.
Strong knowledge of REST APIs, JSON, and OpenAPI/Swagger.
Experience with MongoDB, including document modeling, indexing, aggregation, CRUD operations, and performance tuning.
Experience with Kafka producer and consumer development.
Experience with REST-based integrations involving upstream and downstream systems.
Experience working with OpenShift or AWS.
Ability to develop and optimize SQL queries.
Experience applying Kafka partitioning strategies.
Experience supporting CI/CD pipelines, deployments, and production environments.
Experience implementing resiliency, monitoring, and secure coding practices.

Bring your expertise to a role where your work will directly shape robust, scalable, and maintainable software - apply today.

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More about this job

Responsibilities

Design, develop, and maintain scalable Java microservices, REST APIs, Kafka integrations, and SQL and MongoDB data solutions. Collaborate across technical teams on testing, code reviews, CI/CD, deployments, production support, security, and application reliability.

Requirements

Requires 9–12 years of professional experience and hands-on Java 8, 11, or 17 development, with strong experience in Spring, microservices, REST APIs, MongoDB, Kafka, and SQL. Candidates should also have experience with OpenShift or AWS, CI/CD and production support, and secure, resilient, monitored systems.

Skills

Java
Spring Boot
Spring MVC
Spring Data
Microservices
REST APIs
OpenAPI/Swagger
MongoDB
Kafka
SQL
OpenShift
AWS
CI/CD
Resiliency Patterns
Monitoring
Secure Coding

Visa sponsorship

Not detected in the job text

Keywords

Java 8
Java 11
Java 17
Spring Boot
Spring MVC
Spring Data
Microservices Architecture
REST APIs
JSON
OpenAPI
Swagger
MongoDB
Document Modeling
SQL
Kafka
Kafka Partitioning
OpenShift
AWS
CI/CD Pipelines
API Contracts
Service Decomposition
Unit Testing
Code Reviews
Production Support
Resiliency Patterns
Monitoring
Secure Coding
Performance Tuning

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