Senior Web Application Developer

• 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 Sr. Web Application Developer to work in our beautiful Mississauga location.
• Relocation assistance provided for TOP qualified candidates. And expects individuals coming to office all 5 days

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
• -Help the team plan and execute technical deliverables
• -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
• -Mentor other developers on the team in software development life cycle and best practices and elevate the skill of the team through technical mentorship
• -Work with BA team and stakeholders to identify business needs and develop solutions that align with their objectives
• -Off-hours support as required
• -Participate in a rotating weekly on-call schedule
• What we are Seeking
• -10+ years of recent experience, with at least 5 years in a Sr. Web Developer or similar senior role
• -Post-secondary education in Computer Science/IT or related field
• -Experience in .NET / .NET Framework and C#
• -Experience in entity framework
• -Experience with TypeScript front-end frameworks: Angular, React, Vue
• -Experience with commonly used relational database: MySQL, SQL Server, Postgres
• -Experience with commonly used non-relational databases: MongoDB, DocumentDB, DynamoDB
• -Docker and container-hosting: AWS ECS, Kubernetes
• -General Amazon AWS knowledge (or equivalent): EC2, S3, CloudFront, Elastic Beanstalk, Dynamo DB
• -Basic networking knowledge and troubleshooting
• -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