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Added 3 days ago
Senior Java Developer
Citi
Mississauga, ON · ON
Full-time
Extensive experience system analysis and in programming of software applications using Core Java, Multithreading, Spring framework, and REST API.
Added 3 days ago
Backend Java Developer, Officer
Citi
Mississauga, ON
Full-time
Deep understanding of Core Java (Java 17/21), including modern features (Lambdas, Streams, Records, Pattern Matching), multi-threading, concurrency, and memory management.
Added 2 days ago
Software Developer
Teckhorizon Inc
Toronto, ON
Contract
Our Client is looking for a Junior Software Developer with experience in Oracle development, data integration, ETL, and enterprise data platforms to support a large public-sector…
Added 2 days ago
Junior QA Analyst
MatchBox Consulting Group
Burnaby, BC
Contract
Execute API testing to validate system integrations and data exchanges.
Added 2 days ago
Software Engineer - Monitoring
Motive
Vancouver, BC
Experience in modern programming languages. Proficiency in Ruby, Golang, Kotlin/Java is a plus.
Added 2 days ago
SAP BTP AI Solutions Architect
Talan
Toronto, ON
$160,000 to $200,000 CAD / year
Full-time
CAP and integration expertise: At least four (4) years with CAP in Node.js or Java and three (3) years with SAP Integration Suite, including API Management and Event Mesh.
Added 2 days ago
SAP BTP AI Solutions Architect
Talan
Toronto, ON
$160,000 to $200,000 CAD / year
Full-time
CAP and integration expertise: At least four (4) years with CAP in Node.js or Java and three (3) years with SAP Integration Suite, including API Management and Event Mesh.
Added 2 days ago
Senior Java Software Engineer
Maarut Inc
Quebec, QC
Contract
Senior Java Developer – AWS | Spring | Microservices
Added 3 days ago
Staff Software Engineer
VGS
Canada
Full-time
…with a highly consistent modern stack (e.g. AWS, Kubernetes, Java, TypeScript, Python) and world-class AI-augmented SDLC tooling. We strip away the friction so you can focus on the problems…
Added 3 days ago
Data Architect
Univeris
Toronto, ON
Full-time
Added 2 days ago
Software Engineer
PlanIT Search
Markham, ON
Contract
The ideal candidate is a hands-on engineer with strong experience in Java, Spring Boot, Oracle, REST APIs, and enterprise application development, along with exposure to modern web…
Added 2 days ago
Full Stack Engineer
VStream Labs Inc.
Toronto, ON
$60 to $70 CAD / hour
Contract
Software Developer - Full Stack, Senior (Java / Azure / Esri)
Added 2 days ago
Data Architect
Univeris
Toronto, ON
$130,000 to $150,000 CAD / year
Full-time
Added 2 days ago
Financial Risk Analyst
Gala Solutions
Montreal, QC
Contract
Job Title: Fixed Income Risk System Developer
Added 2 days ago
Java Software Developer
ZAPCOM GROUP INC
Toronto, ON
Full-time
Looking for Sr full stack developers 8+ years’ experience who needs to have core Java/Springboot skills on backend and Javascript and React skills on frontend.
Added 2 days ago
Java Software Engineer
Tekshapers
Mississauga, ON
Full-time
Microservices architecture (service decomposition, API contracts)
Added 3 days ago
Student, Full Stack Developer
Sun Life
Toronto, ON
Full-time
Sun Life DMS is looking for a contract/Co-Op Full Stack Web Developer with strong communication and Collaboration skills to work closely with technical and non-technical audiences (written,…
Added 3 days ago
Developer Java, Spring, AWS
Maarut
Longueuil, QC
Contract
senior developer with 12 years of experience who can jump right in on existing
Added 3 days ago
Senior Java Backend Developer
TSR Consulting
Mississauga, ON
$70 to $75 CAD / hour
Contract
We are seeking a highly skilled and passionate Senior Java Backend Developer to join our engineering team as a Senior Individual Contributor. In this role, you will be responsible for…
Added 3 days ago
Senior Software Engineer II, KYC
Carta
Toronto, ON
Full-time
The Tech Stack: You have experience with (or a desire to learn) our core technologies: Python, Django, React, Postgres, and Kafka. We also utilize Java, gRPC, and AWS.
Added 3 days ago
Senior Automation Developer
ProxyLink
Toronto, ON
$80 to $83 CAD / hour
Contract
ProxyLink is looking for a Senior Automation Developer to join an enterprise technology environment and play a key role in designing, developing, and implementing automated testing…
Added 3 days ago
Software Engineer, Early Career - Immediate Start
Stripe
Toronto, ON
Experience and familiarity with programming, either through side projects or classwork. We work mostly in Java, Ruby, JavaScript, Scala, and Go. We believe new programming languages can be…
Added 4 days ago
Intermediate Software Developer
Best Buy Canada
Newmarket, ON
Full-time
As an intermediate software developer, you'll play a vital role in enhancing customer and associate experiences by developing innovative applications that directly contribute to the success…
Added 3 days ago
Software Engineering Team Lead
Exchange Solutions
Toronto, ON · Greater Toronto Area, Canada
Full-time
Strong TypeScript and Node.js, plus a second language such as Java. Comfortable in both object oriented and functional styles.
Added 3 days ago
Senior Java Developer
K&K Global Talent Solutions INC.
Mississauga, ON
Full-time
We’re hiring a Senior Java Developer to design, build, and operate enterprise-grade microservices with strong expertise in Spring Boot, Kafka, and MongoDB on Open Shift/AWS.

Astra-North Infoteck Inc. ~ Conquering today’s challenges, achieving tomorrow’s vision!

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

Toronto, ON, Canada

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

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Applications open in a new tab.

Original 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.

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More about this job

Responsibilities

Design, develop, and maintain high-quality Java applications while championing code quality through reviews and TDD practices. Collaborate with cross-functional teams to deliver secure, reliable solutions and resolve complex technical issues.

Requirements

Requires 5+ years of software development experience with strong command of core Java, Spring Boot, and TDD methodologies. Candidates should have experience with CI/CD pipelines, static code analysis tools, and secure coding practices.

Skills

Java
Spring Boot
TDD
CI/CD
AWS
REST APIs
JUnit
Mockito
SonarQube
JaCoCo
Maven
Gradle
Git
Jenkins
Microservices
Agile

Visa sponsorship

Not detected in the job text

Keywords

Java
Spring Boot
TDD
CI/CD
AWS
REST APIs
JUnit
Mockito
SonarQube
JaCoCo
Maven
Gradle
Git
Bitbucket
Jenkins
Microservices
Agile
Clean Code
SOLID Principles
OWASP
Concurrency
Multithreading
JVM
React
Angular
TypeScript
Docker
Kubernetes
Jira
Confluence

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