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Added 11 mins ago
RF Systems Engineer
Open People Network (OPN)
Toronto, ON · Greater Toronto Area, Canada
Full-time
You will own the RF detection layer end to end: architecture, software-defined radio integration, signal detection and protocol identification, and the pipeline that feeds RF tracks into…
Added 12 mins ago
Développeur(-euse) principal(e) de logiciels (contenu) /Principal Software Development Engineer
Expedia Group
Montreal, QC · Canada - Quebec - Montreal
Full-time
…logiciel, soit de la conception aux tests, en passant par l’intégration, le déploiement, la surveillance et le…
Added 12 mins ago
BLE Senior Software Engineer/Developer
Garmin International, Inc.
Cochrane, AB
Full-time
Garmin Canada is seeking a full-time Senior Software Engineer/Developer to solve real-world connected-device problems in a collaborative, embedded-systems environment.
Added 58 mins ago
Senior AI Forward Deployment Engineer
Norton Rose Fulbright
Toronto, ON
Full-time
We are seeking a Senior AI Forward Deployment Engineer to join the Artificial Intelligence team within Norton Rose Fulbright Canada. This role will design, build, deploy, and optimize…
Added 58 mins ago
Senior Data Platform Engineer
Norton Rose Fulbright
Toronto, ON · Calgary, AB
Full-time
The Senior Data Platform Engineer will act as a technical lead for our technologies in any project or initiative, and is responsible for designing, developing, implementing, and supporting…
Added 1 hour ago
Senior Software Engineer
Dye & Durham Talent Team
Montreal, QC
We are looking for a Senior Software Engineer who will be responsible for developing, maintaining, and enhancing in-house software applications that are critical to business operations and…
Added 1 hour ago
Cloud Network Engineer II
TD
Toronto, ON
Full-time
As a Cloud Network Engineer, you will be responsible for engineering, automating, and supporting enterprise cloud networking solutions across Azure, AWS, and GCP. This role combines deep…
Added 1 hour ago
Senior AI Full‑Stack Engineer
Manulife
Waterloo, ON
Full-time
We are seeking a Senior Full‑Stack AI Engineer to help shape how modern AI‑driven software is built, deployed, and scaled. In this role, you will work at the intersection of cloud…
Added 2 hours ago
Founding Sales Engineer
Featherless AI
Remote, Canada
$150,000 to $190,000 USD / year
Full-time · Remote
We're hiring our first Sales Engineer to pair directly with our founding Account Executive in North America. You are the technical half of a two-person deal team: the AE owns the commercial…
Added 2 hours ago
Senior Software Engineer
Microsoft
Vancouver, BC
Full-time
…analytics in the world of data with products like databases, data integration, big data analytics, messaging & real-time analytics, and business intelligence. The products our portfolio…
Added 2 hours ago
Team Lead, AI Engineering
The Citco Group Limited
Halifax, NS
Full-time
The AI Engineer remains accountable for technical correctness, human review of AI-generated output, meaningful tests, secure implementation and production readiness. AI-generated work never…
Added 2 hours ago
Senior AI Engineer
The Citco Group Limited
Halifax, NS
Full-time
The AI Engineer remains accountable for technical correctness, human review of AI-generated output, meaningful tests, secure implementation and production readiness. AI-generated work never…
Added 2 hours ago
Manufacturing Engineering
Dometic
Vancouver, BC
$77,000 to $96,000 CAD / year
Full-time
We are on a journey of continuous growth – now looking for our next star – a passionate Manufacturing Engineer. This position reports to Operations Engineering Manager and will work in…
Added 3 hours ago
Senior Software Engineer
GRICS
Montreal, QC
Full-time
Role Description The Senior Software Engineer will design, develop, and maintain robust software solutions that support education-focused digital products and services. This full-time,…
Added 3 hours ago
Embedded Software Specialist/Engineer
General Dynamics Land Systems–Canada
London, ON
Contract
Support software activities in a variety of environments (e.g. Office, System Integration Lab (SIL), on-vehicle, and external test sites).
Added 4 hours ago
Staff Verification Engineer, Compute Subsystems
Qualcomm
Markham, ON
Full-time
Are you a creative engineer looking for challenges?
Added 4 hours ago
Physical Design Engineer, Staff
Qualcomm
Toronto, ON
Full-time
…create a smarter, connected future for all. As a Qualcomm ASIC Engineer, you will define, model, design (digital and/or analog), optimize, verify, validate, implement, and document IP…
Added 4 hours ago
AI Engineer
Insight
Remote, Canada
Full-time · Remote
As an AI Engineer, you will design and implement production-grade AI agents and multi-agent systems that use tools, call APIs, reason over enterprise data, and power modern mobile, web, and…
Added 4 hours ago
Data Engineer Sr
Insight
Toronto, ON
Full-time
We are seeking a Senior Data Engineer to design, build, and optimize modern data platforms that enable analytics, reporting, operational intelligence, and AI-driven solutions.
Added 5 hours ago
QA Automation Engineer – Python, Playwright & SQL
Astra-North Infoteck Inc. ~ Conquering today’s challenges, achieving tomorrow’s vision!
Toronto, ON
Full-time
Senior QA Automation Engineer – Python, Playwright & SQL
Added 5 hours ago
Observability Engineer
Apptoza Inc.
Toronto, ON
Contract
Role: Observability Engineer (KUBERNETES & CONTAINERS, GITOPS & AUTOMATION, QUERY LANGUAGES, CLOUD & INFRASTRUCTURE)
Added 5 hours ago
Senior Embedded Software Designer
Kepler Communications Inc.
Canada
Full-time
We're on the hunt for a top-tier Embedded Software Engineer. Your focus will be on software development and maintenance required for both space and ground-based assets for a growing fleet…
Added 5 hours ago
Senior Infrastructure Engineer (Linux & Cloud Automation)
Manx Telecom Enterprise
Permanent North American Gaeltacht, ON
Full-time
Job Details: Senior Infrastructure Engineer (Linux & Cloud Automation)
Added 5 hours ago
AWS Data Engineer
Apptoza Inc.
Toronto, ON
Contract
Perform data integration from multiple sources into AWS data platforms.
Added 5 hours ago
Golang Engineer
Jobright.ai
Canada
Full-time
…searching and helps users reach better job outcomes. The Golang Engineer develops and maintains Go services, APIs, database and external service integrations, automated tests, and…

Epsilon Solutions Ltd.

Senior Java AI Engineer

Toronto, ON, Canada

Job type: Full-time
Apply by: Oct 25, 2026
Experience: 8+ years of software development experience in Java, spanning the full application development life cycle.
Posting language: English
Posted: Sep 25, 2026

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Applications open in a new tab.

Original job description

Senior Java AI Engineer

Full Time

Toronto, ON

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:

8+ 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.

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More about this job

Responsibilities

Design, develop, test, and maintain high-quality Java applications and REST APIs, applying clean code, design patterns, TDD, and automated quality checks. Collaborate with cross-functional teams to resolve technical issues, improve existing systems, and deliver secure, reliable solutions.

Requirements

Requires 8+ years of Java development experience, strong core Java knowledge, and hands-on expertise with JUnit, Mockito, TDD, code quality tools, and Spring-based APIs or microservices. Candidates should also have experience with build tools, Git, CI/CD, and Agile collaboration; AI-assisted development, cloud, containers, and financial or insurance industry knowledge are advantages.

Skills

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

Visa sponsorship

Not detected in the job text

Keywords

Java
JUnit
Mockito
Test-Driven Development
Unit Testing
Test Automation
Continuous Testing
Clean Code
SOLID Principles
Design Patterns
Concurrency
Multithreading
JVM Memory Management
SonarQube
JaCoCo
Spring Boot
REST APIs
Microservices
Maven
Gradle
Git
Bitbucket
Jenkins
CI/CD
GitHub Copilot
Diffblue Cover
EvoSuite
Docker
Kubernetes
AWS

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