Jobs in Canada

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Added 5 months ago
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Software Engineer, Full Stack
Basetwo
Remote, Canada
- Full-time
- Remote
As a Full Stack Engineer, you will be working on one or more of our new product initiatives. You will maintain a close working relationship with our product and design teams to bring about…
Added 5 months ago
B
Software Engineer, Full Stack
Basetwo
Remote, Canada
- Full-time
- Remote
As a Full Stack Engineer, you will be working on one or more of our new product initiatives. You will maintain a close working relationship with our product and design teams to bring about…
Added 5 months ago
B
Software Engineer, Full Stack
Basetwo
Remote, Canada
- Full-time
- Remote
As a Full Stack Engineer, you will be working on one or more of our new product initiatives. You will maintain a close working relationship with our product and design teams to bring about…
Added 5 months ago
H
Senior DevOps Engineer
Huzzle
Remote, Canada
- Full-time
- Remote
We are hiring an experienced Senior DevOps Engineer to support fast-growing international companies building scalable cloud-native platforms and enterprise infrastructure.
Added 2 months ago
CO
Staff Software Engineer - Capital One Travel Tech - Full-stack
Capital One
Toronto, ON
- $172,960 to $197,400 CAD / year
- Full-time
161 Bay Street (93021), Canada, Toronto,Toronto, Ontario,Staff Software Engineer - Capital One Travel Tech - Full-stack
Added 5 months ago
GC
Full Stack Engineer
GREIG CITY ACADEMY
Remote, Canada
- Full-time
- Remote
…education? GREIG CITY ACADEMY is on the lookout for a passionate Full Stack Engineer to join our dynamic team. We're a secondary school dedicated to empowering the next generation…
Added 5 months ago
A
Design Engineer - Canada
Ashby
Remote, Canada
- $121,000 to $248,000 CAD / year
- Full-time
- Remote
Design Engineer (This Posting) - This posting covers both Mid and Senior levels. You have 2+ years of continuous experience (e.g., internships don’t count) as an Engineer or a Designer. You…
Added 5 months ago
HT
Research Engineer - Agentic Software Systems Engineering
Huawei Technologies Canada Co., Ltd.
Markham, Ontario
- Full-time
Build and optimize full-stack engineering capabilities and reusable assets for code agents - including sub-agents, skills, tool libraries, prompt/context engineering modules, and workflow…
Added 5 months ago
ENGINEER IV - HYBRID
Green Shield Canada
Toronto, Ontario
Proven Experience: Demonstrated ability in building, shipping, and maintaining backend or full-stack web applications. We typically see this level of skill in engineers with 5+ years of…
Added 5 months ago
STAFF ENGINEER - HYBRID
Green Shield Canada
Toronto, Ontario
Lead solution design and architecture for complex full stack systems, balancing customer impact, operational risk, delivery speed, maintainability, and long-term platform health.
Added 5 months ago
W
Senior Software Development Engineer
Wagepoint
Remote, Canada
- $130,000 to $160,000 CAD / year
- Full-time
- Remote
We're looking for a talented Senior Software Development Engineer who enjoys tackling hard problems and wants to create meaningful impact for small businesses across Canada. You'll play a…
Added 3 months ago
CO
Senior Staff Software Engineer - Capital One Travel Tech - Full-stack
Capital One
Toronto, Ontario
- $202,400 to $231,000 CAD / year
- Full-time
161 Bay Street (93021), Canada, Toronto,Toronto, Ontario,Senior Staff Software Engineer - Capital One Travel Tech - Full-stack
Added 5 months ago
S
Senior Backend / AI Systems Engineer
Spellbook
Remote, Canada
- $170,000 to $220,000 CAD / year
- Full-time
- Remote
…AI-driven workflows. This is a hands-on, high-ownership role for an engineer who cares about product outcomes and understands what requires scale vs what does not, and can turn ambiguity…
Added 6 months ago
S
Forward Deployed Engineer
Spellbook
Remote, Canada
- $170,000 to $213,000 CAD / year
- Full-time
- Remote
Strong backend or full-stack engineering experience.
Added 5 months ago
NT
Senior Controls Engineer
Novarc Technologies Inc
Burnaby, BC
- $102,400 to $118,150 CAD / year
- Full-time
Novarc Technologies is a Vancouver-based full-stack robotics and AI company specializing in the design and commercialization of cobots and AI systems for robotic welding applications. As a…
Added 5 months ago
IL
Advanced Engineer, Product Engagement
Invesco Ltd.
Charlottetown, Prince Edward Island
- $50,000 to $65,000 CAD / year
- Full-time
3+ years of experience in full stack object-oriented development languages such as Java
Added 5 months ago
S
Technical Support Engineer
Sentry
Remote, Canada
- $100,000 to $125,000 CAD / year
- Full-time
- Remote
You’re a Full-Stack Troubleshooter: You enjoy jumping from a React frontend issue to a Python backend trace to a CI/CD pipeline failure in a single afternoon
Added 3 months ago
AI Native Engineer
CookUnity
Toronto, Ontario
Strong foundation in at least one programming language (TypeScript, Python, Kotlin or similar) and ability to build full-stack when needed.
Added 5 months ago
Agile Software Engineer - Co-op
TribalScale
Toronto, ON
Build full-stack applications using modern technologies (frontend, backend, APIs)
Added 5 months ago
GE
Senior Software Engineer
GFL Environmental Inc.
Vaughan, Ontario
- Full-time
We are seeking a highly skilled Senior Full-Stack Developer with 6+ years of experience to lead the digital transformation of our core enterprise applications. You will be responsible for…
Added 5 months ago
HT
Intern Engineer – RL Post-Training for LLMs
Huawei Technologies Canada Co., Ltd.
Vancouver, BC
- Internship
…using innovative programming technologies. This team focuses on full-stack innovations, including software-hardware co-design and optimizing data efficiency at both the storage and runtime…
Added 5 months ago
V
Software Engineer, AI Product (Canada)
Vanta
Remote, Canada
- $215,000 to $260,000 CAD / year
- Full-time
- Remote
You have experience designing, building, and scaling full-stack applications, including backend systems, APIs, and frontend interfaces. You have familiarity with TypeScript, React, and…
Added 3 months ago
CO
Staff Software Engineer - Capital One Travel - Android
Capital One
Toronto, Ontario
- $172,960 to $197,400 CAD / year
- Full-time
Improve software engineering practices – work within agile teams to design, develop, test, implement and support technical solutions across a full stack of development tools and technologies
Added 6 months ago
TA
Senior Software Engineer
Treasure AI
Vancouver, BC
- $132,500 to $171,000 CAD / year
- Full-time
…possess the ability to design and implement features across the full stack. You will own significant features end-to-end, collaborating directly with product managers and designers to ship…
Added 5 months ago
R
Senior Software Engineer
Relay
Remote, Canada
- Full-time
- Remote
You have 3+ years of full-stack software engineering experience

GFL Environmental Inc.

Senior Software Engineer

Vaughan, ON, Canada

Full-time

Apply on gflenv.wd3.myworkdayjobs.com About employer

Applications open in a new tab.

Job details

Job type: Full-time
Posting language: English
Posted: Jun 9, 2026

Original job description

Role Overview

We are seeking a highly skilled Senior Full-Stack Developer with 6+ years of experience to lead the digital transformation of our core enterprise applications. You will be responsible for the end-to-end modernization of legacy .NET Framework 4.8 MVC monoliths into high-performance, .NET 6+ and up microservices and APIs, paired with a modern React frontend and hosted on AWS.

This is not a "maintenance" role; it is a "re-engineering" role. You will bridge the gap between reliable legacy logic and the future-proof scalability of modern cloud architecture.

Key Responsibilities

Legacy Deconstruction: Analyze existing .NET 4.8 MVC applications to identify business logic, dependencies, and integration points for migration.
Architecture Migration: Lead the transition from monolithic architectures to modern design patterns (Microservices, Hexagonal, or Clean Architecture).
Backend Modernization: Rewrite and refactor legacy C# code to .NET 6/8+, implementing cross-platform compatibility and improved performance.
Frontend Revolution: Replace Razor/Server-side rendering with a decoupled, state-of-the-art React SPA (Single Page Application) using TypeScript and modern state management (Redux Toolkit, TanStack Query).
Cloud Orchestration: Design and deploy the modernized stack on AWS, leveraging services like Lambda, ECS (Fargate), S3, and RDS.
API Design: Build robust, secure RESTful APIs that serve as the bridge between the new React frontend and the modernized backend.
CI/CD Implementation: Establish automated pipelines for building, testing, and deploying both the .NET and React components.

Technical Requirements

Backend Expertise

Legacy: Deep understanding of .NET Framework 4.8, ASP.NET MVC, and Web API.
Modern: Expert-level proficiency in .NET 6/7/8 and ASP.NET Core.
Language: Advanced C# skills (Generics, LINQ, Async/Await, Dependency Injection).
Database: Experience with SQL Server (T-SQL) and migrating to AWS-managed databases (RDS/Aurora).

Frontend Expertise

React: Strong experience with Functional Components, Hooks, and modern React patterns.
Languages: JavaScript (ES6+) and TypeScript (Required).
Tools: Experience with Vite or Webpack, and CSS frameworks (Tailwind, Material UI).

Cloud & DevOps (AWS)

Compute: Hands-on experience with AWS Lambda (Serverless) or Amazon ECS/EKS.
Infrastructure: Familiarity with Infrastructure as Code (CloudFormation, CDK, or Terraform).
Deployment: Building CI/CD pipelines (GitHub Actions).

Preferred Qualifications

Experience using the AWS Porting Assistant for .NET or AWS Transform.
Familiarity with containerization (Docker) and orchestration.
Knowledge of Authentication/Authorization standards (OAuth2, OpenID Connect, AWS Cognito).
Proven track record of successfully migrating at least one large-scale enterprise application.

We thank you for your interest. Only those selected for an interview will be contacted.

GFL is committed to equal opportunity for all, without regard to race, religion, color, national origin, citizenship, sex, sexual orientation, gender identity, age, veteran status, disability, genetic information, or any other protected characteristic. If you are interested in applying for employment and need special assistance or an accommodation to apply for a posted position, please contact myworkdayrecruitment@gflenv.com

Please note that GFL does not provide visa sponsorship for this position. Valid work authorization in the country where the job is located is required. Successful candidates will be required to provide valid documentation confirming their eligibility to work in the country where the job is located prior to their start date.

This hiring process may utilize machine-based systems to assist in screening and assessing applicants. Final selection decisions are made by our recruitment team.

Apply on gflenv.wd3.myworkdayjobs.com About employer

More about this job

Responsibilities

Lead the digital transformation of legacy .NET Framework 4.8 MVC monoliths into modern .NET 6+ microservices and APIs. Develop a decoupled React SPA frontend and orchestrate the entire stack on AWS infrastructure.

Requirements

Requires 6+ years of experience with expert-level proficiency in C#, .NET Core, and modern React patterns. Must have hands-on experience with AWS services and the ability to migrate enterprise-scale legacy applications.

Skills

C#
.NET 6/8
React
TypeScript
AWS
Microservices
SQL Server
RESTful APIs
CI/CD
ASP.NET MVC
Redux Toolkit
TanStack Query

Visa sponsorship

Not detected in the job text

Keywords

.NET Framework 4.8
.NET 6
.NET 8
ASP.NET Core
C#
React
TypeScript
AWS Lambda
Amazon ECS
Amazon EKS
S3
RDS
Aurora
SQL Server
T-SQL
Microservices
Hexagonal Architecture
Clean Architecture
REST API
GitHub Actions
Docker
OAuth2
OpenID Connect
AWS Cognito
Vite
Webpack
Tailwind
Material UI
Redux Toolkit
TanStack Query

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Work requirements

Jobs in Canada