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Added 6 days ago
Java Integration Developer
Cloud SynApps Inc.
Mississauga, ON
Contract
4+ years hands-on experience with Apache Camel (Java DSL preferred) and Spring Boot microservices
Added 6 days ago
Java Engineer
Jobright.ai
Canada
Full-time
…search process and helps users reach better job outcomes. The Java Engineer develops and maintains backend services, APIs, database integrations, tests, and technical documentation while…
Added 6 days ago
Senior Java Software Engineer
KTek Resourcing
Montreal, QC
Contract
Design, develop, and maintain scalable applications using Java, JavaScript, and Spring Boot frameworks.
Added 6 days ago
Senior Application Support Analyst
eHealth Saskatchewan
SK · Saskatchewan
$45.73 to $55.64 CAD / hour
Full-time
Strong background in Java enterprise application development, including use of technologies such as Spring, Spring Boot, Hibernate, RESTful APIs, web services, and enterprise integration…
Added 6 days ago
Développeur.euse JAVA Desktop Senior / Senior, Java Desktop Developer
Portage CyberTech
Montréal-Ouest, QC
Full-time
Titre du poste : Développeur JAVA Desktop Senior
Added 6 days ago
Senior Java / Guidewire Developer
ALTEN Canada
Toronto, ON
Other
Strong Java (back-end) development experience, incl. Spring Boot and microservices/API development
Added 7 days ago
Développeur.euse JAVA Desktop Senior / Senior, Java Desktop Developer
Portage CyberTech
Montreal, QC
Full-time
Titre du poste : Développeur JAVA Desktop Senior
Added 6 days ago
Senior Technical Business Analyst
MSZ Systems
Toronto, ON
Contract
Strong experience with Java / Spring / Spring Boot.
Added 6 days ago
Full Stack Engineer
Soho Square Solutions
Toronto, ON
Contract
Hands-on Senior Full Stack Developer responsible for contributing to the design, development, testing, and maintenance of scalable backend services and REST APIs using Java and Spring Boot;…
Added 6 days ago
Montreal [Hybrid] Java Developer
QUANTEAM - North America (RAINBOW PARTNERS Group)
Montreal, QC
Full-time
Develop, test, and maintain applications using Java, Angular, Spring Boot, and related technologies.
Added 6 days ago
Java Software Engineer
Cyber Space Technologies LLC
Montreal, QC
Full-time
We are seeking an experienced Java Developer with strong expertise in Java, Spring Framework, Microservices, and cloud-native application development. The ideal candidate will have…
Added 7 days ago
Senior Software Developer - Enterprise Permit & Licencing (Computer Services Officer 4)
The Government of Nova Scotia
Halifax, NS
Experience with frameworks such as Bootstrap, jQuery, Spring Boot, Django, and other frameworks.
Added 6 days ago
Senior Java Developer
Delpath
Toronto, ON · Greater Toronto Area, Canada
Contract
We are looking for a Senior Java / Enterprise Application Developer to design, develop, implement, and support complex enterprise applications. The ideal candidate will have strong hands-on…
Added 6 days ago
Staff/Principal Software Engineer (Strong AI/ML and Java exp)
Bevertec
Toronto, ON
Contract
Backend Deep expertise in Java Spring Boot - API design, microservices, event-driven architectures
Added 6 days ago
Java Backend Developer
Work in Ottawa
Ottawa, ON
$105,000 to $120,000 CAD / year
Full-time
Java 11 or above, Spring-boot, Maven, Gradle, JPA, PostgreSQL, REST-API, SOAP
Added 6 days ago
Lead Java Developer
LanceSoft, Inc.
Montreal, QC
Contract
Strong knowledge of core JAVA programming for backend code development with Spring boot framework
Added 6 days ago
Sr. Java Developer (FULL STACK)
Hays
Calgary, AB
Contract
Implement Spring Boot and Spring Core frameworks to streamline application development and enhance modularity
Added 6 days ago
Développeur(euse) Full Stack - Java Spring Boot / Angular
Astek
Montreal, QC
Full-time
Full Stack Developer - Java Spring Boot / Angular
Added 6 days ago
Talent Acquisition Sourcer
Nakisa
Montreal, QC
Full-time
The stack you'll be hiring for: Java, Spring Boot, Vue, Kubernetes
Added 6 days ago
Jira Service Management Intake & Automation Developer : Toronto, ON (Hybrid) : FTE
AceStack
Toronto, ON
Full-time
We are seeking a Jira Service Management Intake & Automation Developer to design, develop, and scale enterprise Jira Service Management solutions and workflow automation. The ideal…
Added 6 days ago
Senior Java Engineer
K&K Global Talent Solutions INC.
Toronto, ON
Full-time
Experience building RESTful APIs and microservices using frameworks such as Spring / Spring Boot.
Added 6 days ago
Java Software Engineer
Synechron
Calgary, AB
$80,000 to $85,000 CAD / year
Full-time
Design, develop, and maintain server-side applications using Java and Spring/Spring Boot frameworks.
Added 6 days ago
Java Backend Developer
Smart IT Frame LLC
Mississauga, ON
Full-time
Seeking a Specialist with 7 years of experience in Java Frameworks to design develop and maintain scalable microservicesbased applications using Spring and Spring Boot
Added 7 days ago
Senior Java Developer, Assistance Vice President
Citi
Mississauga, ON
Full-time
4+ years of relevant experience in Java (JDK 1.8 or more) , experience with Spring Boot, KAFKA, GRPC, ECS, Mongo, REST API, JUNIT and SQL Basics
Added 7 days ago
Java Software Engineer
Robert Half
Toronto, ON
$100,000 to $130,000 CAD / year
Full-time
Design, develop, and maintain backend applications and APIs using Java and Spring Boot.

K&K Global Talent Solutions INC.

Senior Java Engineer

Toronto, ON, Canada

Job type: Full-time
Apply by: Oct 14, 2026
Experience: 5+ years of software development experience in Java, spanning the full application development life cycle.
Posting language: English
Posted: Sep 14, 2026

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Original job description

Role :: Senior Java Engineer

Location :: Toronto, ON– Onsite

Fulltime_ Permanent Role

Job Description

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.

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More about this job

Responsibilities

Design, develop, and maintain high-quality Java applications using clean code principles and TDD. Collaborate with cross-functional teams to build modular APIs and integrate automated quality gates into CI/CD pipelines.

Requirements

Requires over 5 years of Java development experience with strong expertise in core Java, Spring Boot, and unit testing frameworks. Candidates must be proficient in CI/CD tools and committed to SOLID principles and clean code.

Skills

Java
JUnit
Mockito
TDD
Spring Boot
REST APIs
Microservices
SonarQube
JaCoCo
Maven
Gradle
Git
Bitbucket
Jenkins
CI/CD
SOLID Principles

Visa sponsorship

Not detected in the job text

Keywords

Java
JUnit
Mockito
TDD
Clean Code
SOLID Principles
Design Patterns
JVM Memory Management
Concurrency
Multithreading
Streams
Lambdas
SonarQube
JaCoCo
REST Web Services
Spring
Spring Boot
Microservices
Maven
Gradle
Git
Bitbucket
Jenkins
CI/CD
Agile
Static Code Analysis
Unit Testing
Technical Debt
Information Security

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