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Added 1 hour ago
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Sr. Developer - Application Development JAVA N 4B
BrightClaim
AB
- Full-time
Sr. Developer - Application Development JAVA N
Added 1 hour ago
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Sr. Developer - Application Development JAVA N 4B
BrightClaim
Montreal, QC
- Full-time
Hands on experience working on Core Java and databases using Spring Boot
Added 7 hours ago
SC
Senior Developer
SAP Careers
Montreal, QC
- $108,100 to $222,800 CAD / year
- Full-time
Expert level in Java; experience with Spring Boot preferred and proven experience with REST API design and asynchronous messaging (Kafka, or similar)
Added 7 hours ago
SC
Software Developer
SAP Careers
Montreal, QC
- $77,500 to $166,200 CAD / year
- Full-time
Solid proficiency in Java; experience with Spring Boot preferred and hands-on experience with REST API design, event-driven APIs and asynchronous messaging (Kafka, or similar)
Added 11 hours ago
BS
Technical Lead (Full-Stack Engineering & AI)
Brainhunter Systems Ltd
ON · Ontario, Canada
- Contract
…React/Next.js user experiences and experience orchestration to Java/Spring Boot services, APIs, Kafka events, and data integration using REST API via Apigee. You will also be able to…
Added 12 hours ago
SS
Architecte Senior de Solutions (Expérience en Intelligence Artificielle)
Sopra Steria
Montreal, QC
- Full-time
…modernes s’appuyant sur plusieurs technologies telles que .NET, Java, Python, React, les plateformes Cloud, les API, les technologies d’intégration et les solutions basées sur…
Added 12 hours ago
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Full Stack Software Developer
Lancesoft
Montréal, QC
- $65.52 to $80 CAD / hour
- Full-time
- On-site
<strong>Job Title: Full Stack Software Developer<br>Location: Montreal (day 1 onboarding onsite / in-office presence required 3x/week)<br>Years of experience: up to 7…
Added 12 hours ago
IG
Software Developer
Insight Global
Newmarket, ON
- Full-time
Design, develop, test, and deploy backend applications using Java and Spring Boot.
Added 13 hours ago
IG
Developer
IMCS Group
Quebec, QC
- Contract
Design and develop scalable Java-based applications.
Added 13 hours ago
SS
Architecte Senior de Solutions (Expérience en Intelligence Artificielle)
Sopra Steria
Montreal, QC
- Full-time
…modernes s’appuyant sur plusieurs technologies telles que .NET, Java, Python, React, les plateformes Cloud, les API, les technologies d’intégration et les solutions basées sur…
Added 13 hours ago
TI
JavaBackend Developer
Tekgence Inc
Brampton, ON
- Contract
Responsibilities include designing and developing backend services using #SpringBoot and Java versions 8 to 21
Added 13 hours ago
ES
Java Software Engineer
Epsilon Solutions Ltd.
Toronto, ON
- Full-time
Experience building RESTful APIs and microservices using frameworks such as Spring / Spring Boot.
Added 14 hours ago
MP
Lead Data Engineer (ITA7)
Municipal Property Assessment Corporation
Pickering, ON
- Full-time
Hands-on experience with enterprise cloud data engineering technologies and programming languages such as SQL, Python, Java, Groovy, Spring Boot, Spark, Microsoft Fabric, Databricks, Azure…
Added 14 hours ago
AI
Java Full Stack Developer
Apptoza Inc.
Toronto, ON
- Contract
1.Develop and maintain end-to-end web applications using Java (Spring/Spring Boot) and JavaScript frameworks. 2.Design and implement scalable backend services and APIs using Java…
Added 14 hours ago
D
Java Developer
Dexian
Mississauga, ON
- Other
Design and build backend services and APIs, primarily in Java and Spring Boot
Added 15 hours ago
C
Senior Java Developer
Cognizant
Mississauga, ON
- $95,000 to $115,000 CAD / year
- Full-time
Possess a strong proficiency in Spring boot Microservices and Java for full stack development.
Added 15 hours ago
M
Senior Backend Developer
Modaxo
Montreal, QC · Canada - Montreal, QC
- Full-time
The Senior Developer will work with Product and R&D leaders to translate business requirements into technical solutions and ensure the technical feasibility of new features. They will…
Added 15 hours ago
SI
Software Developer
SAP IT Business Systeme
Montreal, QC
- $77,500 to $166,200 CAD / year
- Full-time
Solid proficiency in Java; experience with Spring Boot preferred and hands-on experience with REST API design, event-driven APIs and asynchronous messaging (Kafka, or similar)
Added 15 hours ago
OS
Senior Forward Deployed Engineer (FDE)
Open Systems Technologies
Toronto, ON
- Contract
Architect and build scalable, resilient full-stack applications using Java (Spring Boot/Spring Framework, Microservices) and/or Python (FastAPI/Flask), tailored to enterprise financial…
Added 15 hours ago
NI
Java, Angular/ReactJS Senior Developer
Nityo Infotech
Toronto, ON
- Contract
Develop microservices using Spring Boot, Spring MVC, Spring Data JPA, Hibernate, Angular/ReactJS.

Epsilon Solutions Ltd.

Java Software Engineer

Toronto, ON, Canada

Full-time

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Job details

Job type: Full-time
Apply by: Nov 6, 2026
Experience: 5+ years of software development experience in Java, spanning the full application development life cycle.
Posting language: English
Posted: Oct 7, 2026

Original job description

Senior Java Engineer

Toronto, ON (Onsite)

Full Time

"Roles and Responsibilities:

Design, develop, and maintain high-quality, maintainable Java applications using clean code principles and established design patterns.

Write comprehensive, meaningful unit tests using JUnit and Mockito to ensure code correctness, reliability, and long-term maintainability.

Apply test-driven development (TDD) practices to drive design, maximize coverage, and prevent regressions.

Champion code quality through thorough code reviews, pair programming, and adherence to coding standards and best practices.

Refactor and improve existing codebases to reduce technical debt and enhance readability, performance, and testability.

Apply core Java concepts - collections, concurrency and multithreading, generics, streams, exception handling, and JVM memory management - to build robust solutions.

Integrate automated unit testing, static code analysis, and quality gates into CI/CD pipelines.

Use tools such as SonarQube and JaCoCo to measure, enforce, and continuously improve code quality and test coverage.

Build modular, reusable, and testable applications and APIs (REST web services) in Java.

Collaborate with architects, business and application analysts, operations teams, and testing specialists to deliver reliable, secure, high-quality solutions.

Diagnose, troubleshoot, and resolve complex technical, performance, and reliability issues.

Ensure information security standards and requirements are incorporated into all solutions.

Stay current with emerging technologies, including AI-assisted development and automated test generation, and evaluate how they can improve quality and productivity.

Skills Required:

5+ years of software development experience in Java, spanning the full application development life cycle.

Strong command of core Java concepts, including collections, concurrency/multithreading, generics, streams, lambdas, exception handling, and JVM memory management.

Proven, hands-on experience writing effective unit tests with JUnit and mocking frameworks such as Mockito.

Solid understanding of test-driven development (TDD), test automation, and continuous testing practices.

Deep commitment to code quality, clean code, SOLID principles, and design patterns.

Experience with static code analysis and code coverage tools such as SonarQube and JaCoCo.

Experience building RESTful APIs and microservices using frameworks such as Spring / Spring Boot.

Experience with build tools such as Maven or Gradle.

Experience with source code management tools such as Git and Bitbucket.

Experience integrating automated tests and quality checks into CI/CD pipelines (for example, Jenkins).

Strong analytical, problem-solving, communication, and technical documentation skills.

Ability to work effectively in a fast-paced, cross-functional Agile environment.

Nice to Have (Added Advantage):

Experience using AI-assisted development tools (for example, GitHub Copilot) to accelerate coding and testing.

Experience with AI-powered or automated unit test generation frameworks (for example, Diffblue Cover, EvoSuite, or similar) is a strong added advantage.

Experience with integration, performance, and contract testing tools.

Experience with containerization and orchestration technologies such as Docker and Kubernetes.

Experience with cloud platforms such as AWS.

Knowledge of security scanning tools such as SonarQube, JFrog Xray, or similar.

Experience with Jira, Confluence, and Agile delivery practices.

University Degree or College Diploma in Computer Science or a related technology field.

Knowledge of the financial and insurance industries.

Apply About employer

More about this job

Responsibilities

Design, develop, test, and maintain Java applications and REST APIs, applying clean code, design patterns, TDD, and automated quality checks. Collaborate across technical and business teams to resolve complex issues and deliver secure, reliable solutions.

Requirements

Requires 5+ years of Java development experience, strong core Java knowledge, and hands-on expertise with JUnit, Mockito, TDD, and code quality practices. Candidates should also have experience with Spring or Spring Boot, REST APIs, build and source control tools, and CI/CD pipelines.

Skills

Java
JUnit
Mockito
Test-Driven Development
Clean Code
SOLID Principles
Design Patterns
Concurrency and Multithreading
Spring Boot
REST APIs
Maven
Gradle
Git
SonarQube
JaCoCo
CI/CD

Visa sponsorship

Not detected in the job text

Keywords

Java
JUnit
Mockito
Test-Driven Development
Unit Testing
Test Automation
Core Java
Collections
Concurrency
Multithreading
Generics
Streams
Lambdas
JVM Memory Management
Spring
Spring Boot
REST APIs
Microservices
Maven
Gradle
Git
Bitbucket
Jenkins
CI/CD
SonarQube
JaCoCo
Docker
Kubernetes
AWS
Agile

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