Senior Java Developer – Spring Boot | TDD | CI/CD | AWS

Astra-North Infoteck Inc. ~ Conquering today’s challenges, achieving tomorrow’s vision!; Toronto; On-site; CAD 90,000 - 120,000; Full time

Job summary

Astra-North Infoteck Inc. is seeking a Senior Java Developer to design, develop, and maintain high-quality Java applications and REST services using Spring Boot, with a strong focus on TDD and CI/CD.

You will implement secure coding practices, ensure code quality, and collaborate with cross-functional teams to deliver robust, scalable solutions in a fast-paced Agile environment.

Qualifications

• 5+ years of software development experience in Java / NodeJs.
• Experience building RESTful APIs and microservices with Spring Boot.

Responsibilities

• Design, develop, and maintain Java applications and services.
• Write unit tests with JUnit and Mockito for reliability.
• Apply TDD and CI/CD to drive design and prevent regressions.
• Build modular, testable REST APIs and microservices.
• Embed security-by-design and follow secure coding standards.
• Champion code quality via code reviews and best practices.
• Refactor code to reduce technical debt and improve performance.
• Apply core Java concepts including concurrency and memory management.
• Integrate automated tests, static analysis, and quality gates into CI/CD (e.g., Jenkins).
• Use SonarQube and JaCoCo to measure quality and test coverage.
• Collaborate with architects and analysts to deliver secure solutions.
• Diagnose and resolve complex technical and performance issues.
• Stay current with AI-assisted development and developer experience tools.

Skills

Java

NodeJs

Unit testing

JUnit

Mockito

TDD

CI/CD

Spring Boot

REST APIs

Security

Code quality

Agile

Communication

Education

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

Tools

Maven

Gradle

Git

Bitbucket

Jenkins

SonarQube

JaCoCo

Docker

Kubernetes

AWS

Job description

Senior Java Developer – Spring Boot, REST APIs, TDD & CI/CD

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.