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Java Software Engineer

  • Toronto, ON, Canada

Full-time

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Job details

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

Original job description

Job Title: Senior Java Engineer

Job Description:-

Roles and Responsibilities:

  • Design, develop, and maintain high-quality, maintainable Java applications and services 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) and continuous testing practices to drive design, maximize coverage, and prevent regressions.
  • Build modular, reusable, and testable applications and APIs (REST web services) in Java.
  • Embed security-by-design throughout the development life cycle, following secure coding standards and addressing vulnerabilities early.
  • 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, security scanning, 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.
  • 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, security, and reliability issues.
  • Stay current with emerging technologies, including AI-assisted development and developer experience platforms, and evaluate how they can improve quality and productivity.

Skills Required:

  • 5+ years of software development experience in Java / NodeJs, spanning the full application development life cycle.
  • Experience with modern UI technologies (for example, React, Angular, TypeScript, JavaScript, HTML5, CSS) is preferred.
  • 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.
  • Working knowledge of secure coding practices and application security fundamentals (for example, the OWASP Top 10).
  • Experience building RESTful APIs and microservices using frameworks such as Spring / Spring Boot.
  • Experience with static code analysis, code coverage, and security scanning tools such as SonarQube and JaCoCo.
  • Experience with build tools such as Maven or Gradle and source code management tools such as Git and Bitbucket.
  • Experience integrating automated tests, quality checks, and security gates 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 working with AI agents or agentic development workflows.
  • Experience with backend API technologies such as Node.js is preferred.
  • Experience with Backstage and related developer portal technologies.
  • Experience building and maintaining CI/CD pipelines and related tooling.
  • Experience with containerization and orchestration technologies such as Docker and Kubernetes.
  • Experience with cloud platforms such as AWS.
  • Experience with Jira, Confluence, and Agile delivery practices.
  • University Degree or College Diploma in Computer Science or a related technology field.
More about this job

Responsibilities

Design, develop, test, and maintain secure, high-quality Java applications, REST APIs, and microservices, applying clean code, design patterns, and test-driven development. Improve existing systems and CI/CD quality controls, troubleshoot complex issues, and collaborate with cross-functional teams to deliver reliable solutions.

Requirements

Requires 5+ years of software development experience in Java or Node.js, strong core Java knowledge, and hands-on experience with unit testing, TDD, REST APIs, and Spring or Spring Boot. Candidates should also have experience with secure coding, code-quality and coverage tools, build and source-control systems, CI/CD, and Agile collaboration; a computer science or related technology degree or diploma is an added advantage.

Skills

  • Java
  • JUnit
  • Mockito
  • Test-Driven Development
  • REST APIs
  • Spring Boot
  • Microservices
  • Core Java
  • Secure Coding
  • Code Quality
  • SonarQube
  • JaCoCo
  • CI/CD
  • Maven
  • Git
  • Agile

Visa sponsorship

Not detected in the job text

Categories

  • Software
  • Technology
  • Engineering

Keywords

  • Java
  • Node.js
  • JUnit
  • Mockito
  • Test-Driven Development
  • Continuous Testing
  • REST APIs
  • Spring
  • Spring Boot
  • Microservices
  • Core Java
  • Concurrency
  • JVM Memory Management
  • Secure Coding
  • OWASP Top 10
  • SonarQube
  • JaCoCo
  • Maven
  • Gradle
  • Git
  • Bitbucket
  • CI/CD
  • Jenkins
  • React
  • Angular
  • TypeScript
  • GitHub Copilot
  • Backstage
  • Docker
  • Kubernetes

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