Find work in Canada.

324,987 jobs across our Canadian network. How we count

Jobs in Canada

25+ jobs

Email me new jobs Save this search

Added 6 mins ago
Agent DevOps Platform Engineer
Astra-North Infoteck Inc. ~ Conquering today’s challenges, achieving tomorrow’s vision!
Toronto, ON
Full-time
…operating AI-driven software delivery platforms, DevOps automation, cloud infrastructure, and security-first CICD ecosystems. The engineer will develop and deploy production-grade AI…
Added 6 mins ago
System Engineer
MCAP
Cambridge, ON · Greater Kitchener-Cambridge-Waterloo Metropolitan Area
Full-time
This position is responsible for the design, deployment, management, and security of storage and compute infrastructure for MCAP. This includes the planning, management and monitoring of…
Added 7 mins ago
Staff Software Engineer, SecureAI
Okta
Toronto, ON
As a Staff Software Engineer on the Okta Secures AI team, your mission is to build the industry's first Identity Security Fabric for the agentic era. You will be working on the designs and…
Added 7 mins ago
Staff Software Engineer, OIN
Okta
Toronto, ON
Our team builds and operates all of OIN - from the foundational data model, APIs, and security posture every integration in the network is built on, to the tools partners and customers use…
Added 7 mins ago
Digital Solution Architect Lead Advisor
NTT DATA Services
Halifax, NS
Relevant certifications such as Microsoft Azure AI Engineer, Azure Solutions Architect, AWS AI Specialty, Google Cloud AI Engineer, or equivalent are desirable.
Added 23 mins ago
Senior Architecte IA/ML | Senior AI/ML Architect, Services professionnels pour le secteur public | Public Sector Professional Services
Amazon
Montreal, QC
AWS Global Sales favorise l'adoption du cloud AWS à l'échelle mondiale, permettant aux clients de toutes tailles d'innover et de se développer dans le cloud. Notre équipe permet à chaque…
Added 36 mins ago
Python & Java AI Developer / Toronto, ON (Hybrid) - FTE
AceStack
Toronto, ON
Full-time
We are seeking a Senior AI Software Engineer with strong hands-on experience in Python, Java, Generative AI, and Agentic AI to support an enterprise AI initiative within a regulated banking…
Added 36 mins ago
Senior Full-Stack Software Engineer - AI-Native Engineering, Java & React
Kaseya
Toronto, ON
Full-time
We’re looking for a Senior Full-Stack Software Engineer who brings hands-on expertise in Java, Spring, React, and TypeScript, along with experience building and operating cloud-based…
Added 36 mins ago
Data Center Engineer
Insight Global
Boisbriand, QC
$29.65 to $30 CAD / hour
Contract
Your hands-on knowledge of electricity, building mechanics, and control and automation systems will make a direct difference in how millions of customers worldwide use the cloud every day.
Added 38 mins ago
Test Engineer
Acre Security
Ottawa, ON
Full-time
Are you passionate about transforming the future of security? Do you thrive in a collaborative, innovative environment where your contributions drive real impact? If so, Acre Security is…
Added 52 mins ago
Ingénieur en assurance qualité (QA) / QA Engineer
Explorance
Montreal, QC
Full-time
Explorance is looking for a QA Engineer to help ensure the quality, reliability, performance, and security of our SaaS products.
Added 1 hour ago
Security Engineering
Zodiac Solutions, Inc
Montreal, QC
Full-time
Design, implement, and maintain security controls across network, cloud, server, endpoint, and application environments.
Added 1 hour ago
Lead Software Engineer (SAP ABAP)
Thomson Reuters
Toronto, ON · Canada, Toronto, Ontario
Full-time
Thomson Reuters is seeking an experienced Lead Software Development Engineer (SAP ABAP) to join our product development team, working on cutting-edge integrations between SAP ECC & S/4 HANA…
Added 1 hour ago
GCP DevOps Engineer
TechDoQuest
Toronto, ON
Contract
- Investigate and fix security vulnerabilities, including vulnerable packages, container images, and cloud misconfigurations.
Added 1 hour ago
Senior Full-Stack Software Engineer - AI-Native Engineering, Java & React
Kaseya Careers
Toronto, ON
We’re looking for a Senior Full-Stack Software Engineer who brings hands-on expertise in Java, Spring, React, and TypeScript, along with experience building and operating cloud-based…
Added 2 hours ago
Snowflake Data Engineer
Rivago Infotech Inc
Toronto, ON
Contract
· Cloud technologies (AWS data services, AWS Glue, AWS Lambda, Integration with Active directory, masking and encryption, Governance activities – Lineage, Catalog, classifications.…
Added 2 hours ago
Staff Frontend Engineer – Microfrontends
Tata Consultancy Services
Toronto, ON
$100,000 to $120,000 CAD / year
Full-time
…or similar tools.Drive frontend performance, accessibility, security, and responsive design best practices. Collaborate with Backend teams on API design, schema validation, and integration…
Added 2 hours ago
Senior Full Stack Engineer : Toronto, ON : Hybrid : FTE
AceStack
Toronto, ON
Full-time
We are seeking a Senior Full Stack Engineer with strong hands-on experience in Java, Spring Boot, REST APIs, microservices, unit testing, and software engineering best practices. The ideal…
Added 2 hours ago
Cloud Site Reliability Senior Engineer
Barracuda Networks Inc.
Ottawa, ON
We are looking for a Cloud Site Reliability Senior Engineer to join a team delivering cloud SaaS products at scale. We need somebody who is passionate about the SRE method and a…
Added 2 hours ago
Senior Java Microservices Engineer
Publicis Groupe Holdings B.V
Calgary, AB
Full-time
We are looking for highly skilled Senior Java Microservices Engineer to join a strategic client engagement in Calgary. We are looking for a hands-on senior engineer who combines strong…
Added 2 hours ago
Senior Software Engineer II, Multiple Teams
Relay
Remote, Canada
Full-time · Remote
…to reinvent banking, and we're looking for Senior Software Engineer IIs to help set the technical direction for how we get there. You'll take on our highest-risk, most ambiguous work, spot…
Added 2 hours ago
Senior Fabric Lead Data Engineer
Capgemini
Vancouver, BC
Full-time
…fueled by its market leading capabilities in AI, generative AI, cloud and…
Added 2 hours ago
Security Engineer
Questrade Financial Group
Toronto, ON
We’re looking for our next Security Engineer. Could It Be You?
Added 3 hours ago
Backend Engineer – Python (API & Platform Engineering)
Staffingine LLC
Toronto, ON
Contract
Client is looking for a skilled Python Backend Engineer to build and scale high-performance backend systems. This role will focus on API development, platform engineering, and system…
Added 3 hours ago
Senior Java Backend Developer
Avanciers Inc.
Toronto, ON
$130,000 to $140,000 USD / year
Full-time
Avanciers is a premier IT Staffing/Consulting organization and we are currently recruiting for a contract role for one of our premier client in Canada for Lead Fullstack Engineer.

AceStack

Senior Full Stack Engineer : Toronto, ON : Hybrid : FTE

Toronto, ON, Canada

Job type: Full-time
Apply by: Oct 30, 2026
Posting language: English
Posted: Sep 30, 2026

Apply About employer

Applications open in a new tab.

Original job description

Role: Senior Full Stack Engineer

Location: Toronto, ON

Work Model: Onsite

Experience: 5+ Years

Role Overview

We are seeking a Senior Full Stack Engineer with strong hands-on experience in Java, Spring Boot, REST APIs, microservices, unit testing, and software engineering best practices. The ideal candidate will have a strong focus on clean code, test-driven development, application security, code quality, and CI/CD automation, with exposure to modern frontend and cloud technologies.

Key Responsibilities

•

Design, develop, test, and maintain scalable Java applications, REST APIs, and microservices using clean code principles and established design patterns.

•

Develop modular, reusable, maintainable, and highly testable software components.

•

Write comprehensive unit tests using JUnit and Mockito and drive high-quality test coverage.

•

Apply Test-Driven Development (TDD) and continuous testing practices to improve reliability and prevent regressions.

•

Apply strong knowledge of Core Java, including collections, generics, streams, lambdas, concurrency, multithreading, exception handling, and JVM memory management.

•

Develop and maintain backend services using Spring/Spring Boot and RESTful API technologies.

•

Follow secure coding practices and incorporate security-by-design principles throughout the software development lifecycle.

•

Conduct code reviews, participate in pair programming, and enforce coding standards, SOLID principles, clean code, and design patterns.

•

Refactor legacy code and reduce technical debt while improving application performance, maintainability, and testability.

•

Integrate automated testing, static code analysis, code coverage, and security scanning into CI/CD pipelines.

•

Use tools such as SonarQube and JaCoCo to monitor and continuously improve code quality and test coverage.

•

Work closely with architects, business/application analysts, QA, operations, and other cross-functional teams in an Agile environment.

•

Troubleshoot and resolve complex application issues related to functionality, performance, security, and reliability.

•

Contribute to CI/CD automation using tools such as Jenkins, Maven/Gradle, Git, and Bitbucket.

•

Evaluate and adopt modern engineering practices, including AI-assisted development and developer experience tools, where they can improve productivity and software quality.

Required Skills & Experience

•

5+ years of professional software development experience with Java and/or Node.js across the full software development lifecycle.

•

Strong hands-on expertise in Core Java, including:

◦

Collections and Generics

◦

Streams and Lambdas

◦

Concurrency and Multithreading

◦

Exception Handling

◦

JVM memory management

•

Strong experience with Spring/Spring Boot, REST APIs, and microservices.

•

Proven experience developing effective unit tests using JUnit and Mockito or equivalent mocking frameworks.

•

Strong understanding of TDD, test automation, and continuous testing.

•

Strong knowledge of Clean Code, SOLID principles, design patterns, refactoring, and code quality practices.

•

Working knowledge of application security and secure coding practices, including OWASP Top 10.

•

Hands-on experience with SonarQube, JaCoCo, or similar code-quality and coverage tools.

•

Experience integrating automated testing, quality checks, and security gates into CI/CD pipelines, preferably using Jenkins.

•

Experience with Maven or Gradle and source control tools such as Git and Bitbucket.

•

Strong analytical, troubleshooting, problem-solving, communication, and technical documentation skills.

•

Ability to work effectively in a fast-paced, cross-functional Agile/Scrum environment.

Frontend / Full Stack Experience

•

Experience with modern UI technologies such as:

◦

React or Angular

◦

TypeScript / JavaScript

◦

HTML5 / CSS

•

Backend experience with Node.js is an added advantage.

Nice-to-Have Skills

•

Experience with AI-assisted development tools, such as GitHub Copilot.

•

Exposure to AI agents and agentic software development workflows.

•

Experience with Backstage or other developer portal/platform technologies.

•

Strong experience building and maintaining CI/CD pipelines and developer tooling.

•

Experience with Docker and Kubernetes.

•

Experience with AWS or other cloud platforms.

•

Experience with Jira and Confluence.

•

Experience working with developer experience/platform engineering initiatives.

•

Bachelor's degree or college diploma in Computer Science, Software Engineering, or a related technology discipline.

Key Technology Stack

Apply About employer

More about this job

Responsibilities

Design, develop, test, and maintain scalable Java applications, REST APIs, and microservices, emphasizing clean code, security, test coverage, and maintainability. Collaborate with cross-functional Agile teams, improve legacy systems, troubleshoot complex issues, and integrate automated quality and security checks into CI/CD pipelines.

Requirements

Requires 5+ years of software development experience, strong Core Java and Spring Boot skills, and experience with REST APIs, microservices, unit testing, TDD, and CI/CD. Candidates should also understand secure coding, code quality practices, and modern frontend technologies such as React or Angular, TypeScript or JavaScript, HTML, and CSS.

Skills

Java
Spring Boot
REST APIs
Microservices
JUnit
Mockito
Test-Driven Development
Core Java
Application Security
Clean Code
CI/CD
SonarQube
Maven
Git
React
TypeScript

Visa sponsorship

Not detected in the job text

Keywords

Java
Spring Boot
REST APIs
Microservices
JUnit
Mockito
Test-Driven Development
Continuous Testing
Core Java
Concurrency
JVM Memory Management
OWASP Top 10
Secure Coding
Clean Code
SOLID Principles
Design Patterns
SonarQube
JaCoCo
CI/CD
Jenkins
Maven
Gradle
Git
Bitbucket
React
Angular
TypeScript
Node.js
Docker
Kubernetes

Report this job