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) - Robust 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, and Azure Service Bus - Experience with CI/CD pipelines - Familiarity with Git-based source control and branching strategies - Experience with Docker and containerization is a plus - Understanding of application monitoring, logging, and observability Testing & Quality - Experience with unit testing using frameworks such as xUnit, NUnit,



or MSTest - Understanding of integration and API testing - Familiarity with mocking frameworks such as Moq - Experience with automated testing and continuous integration - Strong understanding of secure coding and application performance practices Preferred Skills - Experience with microservices architecture - Knowledge of Azure DevOps or GitHub Actions - Experience with Docker and Kubernetes - Knowledge of messaging technologies such as Azure Service Bus, RabbitMQ, or Kafka - Experience with Redis or other caching technologies - Knowledge of GraphQL is a plus - Familiarity with Elasticsearch or similar search technologies - Experience with Agile/Scrum development methodologies - Understanding of Domain-Driven Design (DDD) - Experience with application performance monitoring tools - Knowledge of AI/ML integrations or consuming LLM APIs is a plus Qualifications - Bachelor's degree in Computer Science, Software Engineering, Information Technology, or a related field, or equivalent practical experience.

- 3–7+ years of professional software development experience, depending on level.
- Strong hands-on experience with the .NET ecosystem and modern frontend development.
- Demonstrated experience delivering production-grade web applications.
- Solid analytical, problem-solving, and debugging skills.
- Excellent communication and collaboration skills.

What We're Looking For - A strong problem solver with excellent attention to detail.

- Comfortable working across both frontend and backend technologies.
- Able to take ownership of features from requirements through deployment.
- Passionate about writing clean, maintainable, and scalable code.

Comfortable working in a collaborative Agile environment.Able to communicate technical concepts effectively to both technical and non-technical stakeholders.

Typical Technology

Stack - Backend: C#, .NET 8/9+, ASP.NET Core, Web API, Entity Framework Core - Frontend: React / Angular / Blazor, TypeScript, JavaScript, HTML5, CSS3 - Database: Microsoft SQL Server - Cloud: Microsoft Azure - DevOps: Azure DevOps / GitHub Actions, CI/CD, Docker - Testing: xUnit / NUnit, Moq, Postman - Version Control: Git / GitHub / Azure Repos - Architecture: REST APIs, Microservices, Clean Architecture, SOLID, Design Patterns - Data & Documents: Fixed-width & delimited file processing, XML/XSD generation, PDF/document composition (Quadient, Exstream, SmartCOMM)

📌 Full Stack Developer - .NET (Toronto)
🏢 AIIM
📍 Toronto