Web Application Developer

Flynn Group of Companies; Mississauga; On-site; CAD 90,000 - 125,000; Full time

Benefits offered by this job

Training program

On-site gym

Dental and medical plan

RRSP matching

Employee assistance program

Subsidized cafeteria

Free parking & EV charging

Family events & Flynn Fest

Enterprise AI subscription

Job summary

Flynn Group of Companies, North America’s leading building envelope contractor, seeks a Web Application Developer in Mississauga. The role focuses on designing, developing, and testing ASP.NET/Angular web apps with .NET Core and cloud integrations.

You will implement scalable cloud solutions, ensure code quality, and collaborate across teams. A strong background in CLEAN/SOLID and on-call support is expected.

Qualifications

• 5+ years of experience working on web development.

Responsibilities

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

Skills

Angular

JQuery

KendoUI

API

NET Core

MongoDB

MySQL

C#

.NET Framework

AWS

Azure

DevOps

Jira

Aha!

New Relic

Sumo Logic

Education

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

Tools

Atlassian Jira

GitHub

Azure DevOps

Aha!

New Relic

Sumo Logic

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 WebApplication Developer to work in our beautiful Mississauga location.

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
• Enterprise AI subscription (GitHub Copilot, Claude, or similar)

Responsibilities

• Will be a core member of the team to design, architect, develop, code reviews andtest 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

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.

This posting is for an existing vacancy within the organization.