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Senior Dotnet Developer

Job in Toronto, Ontario, C6A, Canada
Listing for: Resonaite
Full Time position
Listed on 2026-02-28
Job specializations:
  • Software Development
    Cloud Engineer - Software, Backend Developer, C# / Unity Developer, Full Stack Developer
Salary/Wage Range or Industry Benchmark: 60000 - 80000 CAD Yearly CAD 60000.00 80000.00 YEAR
Job Description & How to Apply Below

We are seeking a contract-based .NET Developer with strong system design thinking who can operate across multiple layers of the stack. This role is ideal for someone who goes beyond task-based delivery—someone who can help shape solutions, make sound technical decisions, and comfortably wear multiple hats in a collaborative environment.

Key Responsibilities
  • Design, develop, and maintain scalable applications using C#, .NET Core
    , and modern .NET frameworks.
  • Contribute to system and application design
    , including architecture, data models, service boundaries, and integration patterns.
  • Build and maintain backend services and RESTful APIs
    .
  • Work within Microsoft Azure
    , contributing to cloud-based application design, deployment, and troubleshooting.
  • Translate business and technical requirements into clean, maintainable, and scalable solutions.
  • Collaborate closely with frontend, QA, Dev Ops, and product teams across the full delivery lifecycle.
  • Troubleshoot, optimize, and refactor existing systems for performance, reliability, and long-term maintainability.
  • Participate in code reviews, technical discussions, and solution planning sessions.
  • Support deployments and production issues in a shared ownership model.
Required Qualifications
  • 5+ years of professional experience as a .NET Developer using C# and .NET Core
    .
  • Strong understanding of system design and architecture principles
    , including scalability, performance, and maintainability.
  • Hands‑on experience building APIs and backend services.
  • Experience working in Microsoft Azure (e.g., App Services, Azure SQL, Functions, Storage, monitoring/logging).
  • Solid experience with relational databases (e.g., SQL Server) and data modeling.
  • Comfortable operating across multiple responsibilities and adapting to evolving project needs.
  • Strong problem‑solving skills and ability to work independently in a contract environment.
  • Clear communication skills and experience collaborating with cross‑functional teams.
Nice‑to‑Have
  • Experience with React or modern frontend frameworks.
  • Familiarity with CI/CD pipelines and Dev Ops practices in Azure.
  • Exposure to microservices or distributed system architectures.
  • Experience working in Agile delivery environments.
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Position Requirements
10+ Years work experience
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