Role Purpose
Reporting to the VP, Solutions & Delivery, we are looking for a talented and motivated Full Stack Developer – .NET to join our development team. The ideal candidate will have solid experience building scalable, secure, and high-performance web applications using the Microsoft .NET ecosystem, along with modern front-end technologies.

Role Purpose
Reporting to the VP, Solutions & Delivery, we are looking for a talented and motivated Full Stack Developer – .NET to join our development team. The ideal candidate will have strong experience building scalable, secure, and high-performance web applications using the Microsoft .NET ecosystem, along with modern front-end technologies.
You will be responsible for designing, developing, testing, deploying, and maintaining end-to-end applications while working closely with product managers, business analysts, QA engineers, DevOps teams, and other developers.
Core Responsibilities

- Design, develop, and maintain full-stack web applications using C#, .NET / .NET Core, ASP.NET Core, and Web API.
- Build responsive and user-friendly front-end applications using React, Angular, Blazor, or similar modern JavaScript/C# frameworks.
- Develop scalable RESTful APIs and integrate third-party services and enterprise systems.
- Design and optimize relational databases using SQL Server, including tables, stored procedures, views, functions, and queries.
- Implement secure authentication and authorization using technologies such as OAuth 2.0, OpenID Connect, JWT, and ASP.NET Core Identity.
- Process and transform large fixed-width and delimited (CSV/flat)



input files as part of data integration and batch workflows.
- Generate large, well-structured XML output and associated XSD schemas for downstream systems and partners.
- Integrate with document/PDF generation platforms such as Quadient, Exstream, or SmartCOMM to support customer communications.
- Write clean, maintainable, reusable, and well-tested code following established coding standards and design patterns.
- Participate in architecture and technical design discussions and contribute to application modernization initiatives.
- Develop unit, integration, and automated tests to ensure application quality and reliability.
- Troubleshoot and resolve application defects, performance issues, and production incidents.
- Work with DevOps teams to support CI/CD pipelines, automated deployments, monitoring, and cloud infrastructure.
- Collaborate with cross-functional teams to understand requirements and translate them into technical solutions.
- Conduct code reviews and provide constructive feedback to team members.
- Create and maintain technical documentation, API documentation, and development standards.
- Stay current with emerging technologies and recommend improvements to development practices and application architecture.

Required Qualifications
Backend

- Strong proficiency in C#




- Hands-on experience with .NET / .NET Core
- Strong experience with ASP.NET Core
- Experience developing RESTful Web APIs
- Knowledge of Entity Framework Core
- Understanding of dependency injection, middleware, configuration, logging, and application lifecycle
- Good understanding of object-oriented programming and SOLID principles
- Experience with common design patterns and clean architecture principles
- Experience processing large fixed-width and delimited input files
- Experience generating large XML files and XSD schemas
- Experience integrating with PDF generation software such as Quadient, Exstream, SmartCOMM, or similar

Frontend

- Strong experience with JavaScript / TypeScript
- Hands-on experience with at least one modern framework: React, Angular, Vue.js, or Blazor (C#-based)
- Strong knowledge of HTML5, CSS3, and responsive web design
- Experience consuming REST APIs and handling client-side state
- Familiarity with frontend build tools and package managers such as npm

Database

- Strong experience with Microsoft SQL Server
- Proficiency in writing complex SQL queries
- Experience with stored procedures, functions, views, indexes, and query optimization
- Understanding of database design, normalization, transactions, and performance tuning
- Experience with Entity Framework Core or another ORM

Cloud & DevOps

- Experience with Microsoft Azure or another major cloud platform
- Familiarity with Azure services such as Azure App Service, Azure Functions, Azure SQL, Azure Storage, Azure Key Vault

📌 Full-Stack .NET Developer (Toronto)
🏢 Avant Imaging & Information Management
📍 Toronto