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Added 1 min ago
Y
Senior Full Stack Developer (.NET, Angular, Azure)
Yochana
Brampton, ON
- Contract
This role requires a proactive engineer who thrives in a fast-paced environment, enjoys solving complex technical challenges, and is capable of contributing across the entire application…
Added 1 min ago
C
Mechanical Design Technologist
CIMA+
AB · Edmonton, AB
- $63,520 to $87,340 CAD / year
- Full-time
…diverse range of projects from the initial planning stages to design and construction. CIMA+ cultivates career growth and provides opportunities as unique as you are. With a constant desire…
Added 1 min ago
RC
GCP Infrastructure & Cloud SRE Engineer
Realtek Consulting LLC
Toronto, ON
- Contract
Job Title: GCP Infrastructure & Cloud SRE Engineer
Added 1 min ago
TT
Senior Civil Engineer
Tetra Tech
Pickering, ON
- Full-time
We are currently seeking a Senior Civil Engineer for our Pickering, ON office. This posting is for an existing vacancy for which we are actively recruiting. To perform this job…
Added 3 mins ago
LI
Mechanical Engineer
LabsCubed Inc
Kitchener, ON
- Full-time
Join LabsCubed: Shape the Future of Materials Testing as a Intermediate Mechanical Engineer!
Added 3 mins ago
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Senior Data Engineer
HCLTech
Toronto, ON
- $90,000 to $120,000 CAD / year
- Full-time
We are seeking a hands-on Senior Data Engineer to lead the development, support, and continuous improvement of our Azure-based data platform. This role combines data engineering, platform…
Added 3 mins ago
AO
Electrical Engineer
AML Oceanographic Ltd.
Saanichton, BC
- $87,500 to $104,000 CAD / year
- Full-time
Build electronics that hold up at sea. You'll own electrical design from blank schematic through manufacturing handoff. Your designs should pass stage gates the first time and survive…
Added 3 mins ago
AO
Electrical Engineer
AML Oceanographic Ltd.
Dartmouth, NS
- $87,500 to $104,000 CAD / year
- Full-time
Build electronics that hold up at sea. You'll own electrical design from blank schematic through manufacturing handoff. Your designs should pass stage gates the first time and survive…
Added 5 mins ago
A
Junior Human Factors Engineer
AtkinsRéalis
Mississauga, ON
- Full-time
…engineering support from a Human Factors perspective to the design of nuclear power generation equipment, digital instrumentation and control systems for projects involving control,…
Added 20 mins ago
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Value Engineer / Business Consultant
Trackunit
London, ON
- Full-time
Design and iterate value frameworks, ROI models, and pricing justification tools for use across the field sales organization
Added 20 mins ago
Fire Protection Engineer
Smith + Andersen
Vancouver, BC
Is a licensed Professional Engineer in the Province of British Columbia and capable of taking professional responsibility for fire protection design and signing and sealing all fire…
Added 20 mins ago
Fire Protection Engineer
Smith + Andersen
Toronto, ON
At Smith + Andersen our employees contribute to some of the most sustainable building design projects in Canada. The work we do has meaningful impact on the community by contributing to…
Added 34 mins ago
JS
Technical Engineer
JFE Shoji Power Canada Inc.
Burlington, ON
- Full-time
Reporting to the Technical Director, the Technical Engineer is responsible for independently reviewing, validating, and approving technical outputs to ensure accuracy, manufacturability,…
Added 34 mins ago
C
Sr. Security Engineer – Offensive Security/Penetration testing
Cognizant
Toronto, ON
- Full-time
As a Senior Security Engineer, you will make an impact by leading the implementation and optimization of Tenzai security solutions while strengthening enterprise Threat & Vulnerability…
Added 34 mins ago
AE
Process Plant Project Engineer
Agnico Eagle Mines Limited
Sudbury, ON
- Full-time
Participates in construction, Vendor and engineering design update meetings;
Added 34 mins ago
AT
Process Engineer (medical device)
APTYX Trenton
Trenton, ON
- Full-time
To support its growth strategy, Aptyx Trenton is seeking to fill the role of a Process Engineer at our Trenton location. We are looking for an industry experienced individual who will hit…
Added 34 mins ago
FH
IT/Communications Engineer
Fuze HR Solutions
Toronto, ON
- Full-time
We are seeking a highly motivated and talented IT/Communications Engineer to join our Building Systems Engineering team. In this role, you will provide consulting and engineering services…
Added 34 mins ago
FR
Hardware Design Engineer - Agricultural Robots
Finite Robotics
Kitchener, ON
- Full-time
…production grade for the 2027 fleet. This role (the Hardware Design Engineer) is an important role help make that…
Added 34 mins ago
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Sr. Principal Software Engineer
Nokia
Ottawa, ON · Kanata, ON
- Full-time
We are looking for an experienced software engineer to lead the development of our distributed edge compute platform. This role demands a deep understanding of hyperscalers like AWS, Azure,…
Added 34 mins ago
YD
Senior Machine Learning Engineer (Consulting)
Yeji Data Lab
Montreal, QC · Greater Montreal Metropolitan Area
- Full-time
We are looking for a Senior Machine Learning Engineer to design, build, and deploy scalable ML solutions for our clients. You will work across diverse projects, collaborating with…
Added 34 mins ago
RI
Network security / Firewall Consultant
Raas Infotek
Calgary, AB
- Contract
3. Design, review, and implement firewall security policies, NAT rules, and access control lists.
Added 34 mins ago
JG
GCP Infrastructure & Cloud SRE Engineer
J&M Group
Toronto, ON
- Full-time
Design and implement GKE/Kubernetes-based container platforms.
Added 34 mins ago
ST
Structure Engineer – OCS / Rail Electrification
SEGULA Technologies
Toronto, ON
- Full-time
SEGULA Technologies Canada is looking for an experienced Structure Engineer to support a major rail electrification / Overhead Catenary System (OCS) project in Ontario.
Added 34 mins ago
ST
Structure Engineer – OCS / Rail Electrification
SEGULA Technologies
Montreal, QC
- Full-time
SEGULA Technologies Canada is looking for an experienced Structure Engineer to support a major rail electrification / Overhead Catenary System (OCS) project in Ontario.
Added 34 mins ago
II
Software Engineer
Intouch Insight
Ottawa, ON
- Full-time
Collaborate with other team members to design and plan new product features and changes based on requirements

Epsilon Solutions Ltd.

Java Software Engineer

Toronto, ON, Canada

Full-time

Apply About employer

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Job details

Job type: Full-time
Apply by: Nov 6, 2026
Experience: 5+ years of software development experience in Java, spanning the full application development life cycle.
Posting language: English
Posted: Oct 7, 2026

Original job description

Senior Java Engineer

Toronto, ON (Onsite)

Full Time

"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.

Nice to Have (Added Advantage):

Experience using AI-assisted development tools (for example, GitHub Copilot) to accelerate coding and testing.

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.

Apply About employer

More about this job

Responsibilities

Design, develop, test, and maintain Java applications and REST APIs, applying clean code, design patterns, TDD, and automated quality checks. Collaborate across technical and business teams to resolve complex issues and deliver secure, reliable solutions.

Requirements

Requires 5+ years of Java development experience, strong core Java knowledge, and hands-on expertise with JUnit, Mockito, TDD, and code quality practices. Candidates should also have experience with Spring or Spring Boot, REST APIs, build and source control tools, and CI/CD pipelines.

Skills

Java
JUnit
Mockito
Test-Driven Development
Clean Code
SOLID Principles
Design Patterns
Concurrency and Multithreading
Spring Boot
REST APIs
Maven
Gradle
Git
SonarQube
JaCoCo
CI/CD

Visa sponsorship

Not detected in the job text

Keywords

Java
JUnit
Mockito
Test-Driven Development
Unit Testing
Test Automation
Core Java
Collections
Concurrency
Multithreading
Generics
Streams
Lambdas
JVM Memory Management
Spring
Spring Boot
REST APIs
Microservices
Maven
Gradle
Git
Bitbucket
Jenkins
CI/CD
SonarQube
JaCoCo
Docker
Kubernetes
AWS
Agile

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