Web Application Developer

Flynn Group of Companies

Mississauga, ON on site Until 10/7/2026 5+ years exp H-1B sponsor history First posted May 29, 2026 Last posted August 8, 2026

Job description

At Flynn, it's not just a job, it's a career

Flynn Group of Companies, North America’s leading building envelope contractor is looking to hire a Web Application Developer to work in our beautiful Mississauga location.

Our Tech Stack

Our primary tech stack is .NET (C#) hosted in AWS and Microsoft Azure. We use MongoDB, MySQL, and SQL Server for our databases. Apps are built in ASP.NET and Angular for our web apps.

What we offer:

-Funded training and development program

-Very well-equipped on-site gym w/ free access

-Dental and supplemental medical plan

-Matching RRSP contributions

-Employee and Family Assistance Program

-Subsidized onsite cafeteria with excellent food choices!

-Free parking and EV Charging facility

-Family Events and Flynn Fest

-MSDN Subscription

-Enterprise AI subscription (GitHub Copilot, Claude, or similar - your choice)

Responsibilities

-Will be a core member of the team to design, architect, develop, code reviews and test our key applications

-Design new application features and integrations in collaboration with team members to deliver complex changes

-Design and implement scalable and resilient cloud solutions with security and disaster recovery in mind

-Lead and drive all activities to integrate real and near-real time capabilities between new core products and other applications

-Ensure good code coverage and test coverage by writing and maintaining effective automated tests

-Be a champion of code quality in team by adhering to CLEAN architecture and SOLID principles

-Participate in a rotating weekly on-call schedule

-Off-hours support as required

What we are Seeking

-Must have at least 5 years of experience working on web development

-Post-secondary education in Computer Science/IT or related field

-4 years of experience with web development – Angular, Jquery, KondoUI, API, .NET Core, MongoDB and/or MySQL

-Experience in .NET / .NET Framework and C#

-2 years with cloud technologies – AWS or Azure. Experience working with integrating interconnected systems such as microservices

-Solid understanding of and hands on experience with CLEAN architecture and SOLID principles

-Troubleshoot and resolve technical issues and provide support during the testing and deployment phases

-Experience in Agile environment using tools such as JIRA, Aha

-Knowledge of security best practices

-Experience with containerization

-Nice to have: Experience working with observability and monitoring tools such as Sumo Logic, New Relic, CloudWatch, etc.

-Nice to have: Experience working with DevOps concepts such as CI/CD and Infrastructure as Code

-Experience with any of the following tools and technologies: Atlassian Jira, GitHub, Azure DevOps, Aha!, New Relic, Sumo Logic

-Familiarity with AI-powered development tools such as GitHub Copilot, Claude Code, or similar - we embrace AI-assisted development as part of our engineering culture

-We trust our engineers - if there's a tool, license, or resource that helps you work better, just ask. We'll make it happen

#LI-AD1

Flynn Group of Companies is the leading trade contractor in North America that works on virtually every aspect of a building’s outer layer, including Roofing, Glazing, Waterproofing, and Architectural Metals. The foundation of our award winning success is having the right people on our team.

Disclosure: We use an AI-powered system to initially screen resumes. However, all applications/resumes are also reviewed by our team of Human Resources and Talent Acquisition Professionals to ensure a fair and thorough evaluation in determining a candidate’s potential fit for a role they applied to.

This posting is for an existing vacancy within the organization.

Compensation (from employer):
70000–110000 CAD per year

About this role

Summary

Design, develop, test, and maintain web applications using .NET, Angular, and cloud platforms.

Job title

Web Application Developer

Experience level

5+ years

Minimum experience

5+ years exp

Industry

building envelope contractor

Location requirements

Mississauga, ON; on-site work, remote not specified

Salary

C$70k–C$110k

Visa sponsorship

H-1B sponsor history

Management role

Skills & keywords

Required skills

AngularJqueryKendoUIAPI.NET CoreMongoDBMySQLC#cloud (AWS or Azure)SOLID principlesCLEAN architecture

Preferred skills

observability toolsDevOpsCI/CDContainerizationAI-powered tools

Specializations

web developmentcloud technologiesmicroservicesC#.NET

Locations

Structured locations inferred from the posting.

Mississauga, ON, Canada

On-site City