Senior Web Application Developer

Flynn Group of Companies • Mississauga, ON

3d • CA$120,000 - CA$150,000 • Onsite

About The Position

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. 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.

Requirements

• 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

Nice To Haves

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

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

Benefits

• 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)

What This Job Offers

• Job Type: Full-time
• Career Level: Senior
• Education Level: Associate degree