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Randstad Logo Randstad · IT - Software Development

Senior Software Developer

Canada, Toronto 546.97 - 582.68 USD / Day · Job Posted June 09, 2026
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Job Description

We are seeking a Senior Software Developer with over 8 years of experience to join our team. This role focuses on developing modern digital solutions and ensuring high-level integration across diverse application environments. The ideal candidate will have a deep mastery of the Microsoft .NET Framework and a proven track record in building secure, scalable B2B and B2C web applications within client/server architectures.

Job Responsibility

  • Design and develop Web and Windows applications using C#, .NET Core, and the .NET Framework (4.0/5.0+)
  • Lead the installation, configuration, and customization of cloud-based services, including deployment and production support
  • Build and optimize complex database systems using MS SQL Server, including the development of advanced stored procedures and Entity Relationship Diagrams (ERDs)
  • Translate complex functional specifications into detailed technical designs, providing accurate effort estimations for development tasks
  • Develop client-side scripts using JavaScript and jQuery, and customize web forms to enhance user interaction
  • Manage the integration of modern digital platforms with various internal and external systems
  • Execute data migration and reporting tasks using tools such as SSIS, SSRS, and LINQ
  • Provide senior-level technical support for applications hosted on IIS, resolving issues related to performance and scalability

Requirements

  • Over 8 years of experience
  • deep mastery of the Microsoft .NET Framework
  • proven track record in building secure, scalable B2B and B2C web applications within client/server architectures

Nice to have

Hands-on experience with modern frameworks like .NET Core and cloud technologies

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