Senior Java Developer – TDD, JUnit, CI/CD & Code Quality
- 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, spanning the full application development life cycle.
- Posting language
- English
- Posted
Original job description
Senior Java Developer – TDD, JUnit, CI/CD & Code Quality
Roles and Responsibilities:
• 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:
• 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 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.
More about this job
Responsibilities
Design, develop, and maintain high-quality Java applications while championing code quality through TDD, code reviews, and CI/CD integration. Collaborate with cross-functional teams to troubleshoot complex technical issues and ensure secure, reliable software delivery.
Requirements
Requires 5+ years of Java development experience with a strong command of core concepts, concurrency, and design patterns. Proven expertise in unit testing, API development, and modern build/deployment tools is essential.
Skills
- Java
- TDD
- JUnit
- Mockito
- CI/CD
- SonarQube
- JaCoCo
- RESTful APIs
- Spring Boot
- Maven
- Gradle
- Git
- Bitbucket
- Jenkins
- Clean Code
- SOLID Principles
Visa sponsorship
Not detected in the job text
Categories
- Technology
- Software
- Consulting
- Finance & Accounting
Keywords
- Java
- TDD
- JUnit
- Mockito
- CI/CD
- SonarQube
- JaCoCo
- RESTful APIs
- Spring Boot
- Maven
- Gradle
- Git
- Bitbucket
- Jenkins
- Clean Code
- SOLID Principles
- Multithreading
- JVM
- Microservices
- Agile
- AWS
- Docker
- Kubernetes
- GitHub Copilot
- Diffblue Cover
- EvoSuite
- Financial Industry
- Insurance Industry
- Technical Documentation
- Problem-solving