Location
Toronto, ON, Canada
Posted
June 28, 2026
Job Description
Senior .NET Developer .NET Core, C#, ASP.NET Core, APIs, Azure/OpenShift Experience: 8+ Years Location: Toronto, ON (Hybrid 4 days WFO) Duration: 8+ Months ROLE OVERVIEW Seeking an experienced Senior .NET Developer with strong expertise in Core .NET technologies, API development, security practices, and modern DevOps and AI-assisted development tools. Responsible for designing, developing, and maintaining secure, scalable backend systems and APIs in an enterprise environment. KEY RESPONSIBILITIES Develop and maintain applications using .NET Framework and .NET Core. Build scalable and secure backend services using C# and ASP.NET Core. Apply object-oriented design principles and SOLID principles. Implement design patterns such as Singleton, Factory, Repository, and Dependency Injection. Develop RESTful APIs using ASP.NET Core Web API. Implement API security including authentication and authorization mechanisms. Work with microservices architecture and API versioning. Create and...