The Role
As a Senior Web Application Developer, you will design, develop, and maintain applications, mentor junior developers, and collaborate with stakeholders to align tech solutions with business needs.
Summary Generated by Built In
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
#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.
Skills Required
- 10+ years of experience in software development
- 5+ years in a senior web developer role
- Post-secondary education in Computer Science or related field
- Experience in .NET / .NET Framework and C#
- Experience with front-end frameworks like Angular, React, or Vue
- Experience with MySQL, SQL Server, and MongoDB
- Experience with Docker and AWS hosting
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The Company
What We Do
Flynn Group of Companies is a leading North American building envelope trade contractor established in 1978. They specialize in institutional, commercial, and industrial construction, providing services such as roofing systems, glazing, curtain walls, architectural metals, and waterproofing. With over 6,000 employees across 35 locations, they focus on safety, operational excellence, and innovative building solutions to meet the complex needs of the modern construction marketplace.
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