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Web Application Developer

Job in Mississauga, Ontario, Canada
Listing for: United States Digital Space LLC
Full Time position
Listed on 2026-06-15
Job specializations:
  • Software Development
    Full Stack Developer, Software Engineer, Cloud Engineer - Software, C# / Unity Developer
Job Description & How to Apply Below
At Flynn, it's not just a job, it's a career. The company, 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 Mongo

DB, 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 with 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 (Git Hub Copilot, Claude, or similar - your choice)

Responsibilities

Core member of the team to design, architect, develop, conduct 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.

Champion code quality in team by adhering to CLEAN architecture and SOLID principles.

Participate in a rotating weekly on-call schedule.

Provide off-hours support as required.

Familiarity with AI-powered development tools such as Git Hub 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.

What we are Seeking

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, Kondo

UI, API, .NET Core, Mongo

DB 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, Cloud Watch, etc.

Nice to have:
Experience working with Dev Ops concepts such as CI/CD and Infrastructure as Code.

Experience with any of the following tools and technologies:
Atlassian Jira, Git Hub, Azure Dev Ops, Aha!, New Relic, Sumo Logic.

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