Sr.

Full Stack .NET Developer – Security Remediation - Duration: 6 Months Location: Toronto, Hybrid (3x/week) Overview: Responsible for analyzing, remediating, testing and validating security vulnerabilities identified through penetration testing and security assessments across legacy and contemporary .NET applications.

Key Responsibilities Analyze and remediate vulnerabilities identified through penetration testing, vulnerability scans, and security assessments.

Design, develop, and maintain applications using .NET Framework, .NET Core/.NET, ASP.NET Web Forms, ASP.NET Web API, and WCF Services.

Build and maintain responsive user interfaces using ASP.NET Web Forms, Angular, React, Java

Script, jQuery, HTML5, CSS3, and Node.js.

Support authentication and authorization solutions using Entra ID, Auth0, and AD-LDS.





Develop and optimize Microsoft SQL Server database objects and queries.

Manage source code and CI/CD pipelines using Git

Lab and TFS/Azure Dev

Ops.

Configure and deploy applications on IIS and Windows Server environments.

Perform unit testing, code reviews, and regression testing.

Must Haves: .NET Framework, .NET Core/.NET, C# ASP.NET Web Forms, ASP.NET Web API, WCF Services Angular, React, Java

Script, jQuery, HTML5, CSS3, Node.js Microsoft SQL Server and T-SQL Git

Lab, TFS/Azure Dev

Ops, CI/CD IIS, Windows Server, Entra ID, Auth0, AD-LDS OWASP Top 10 and secure coding practices Experience supporting penetration test remediation initiatives

📌 Senior Full Stack.NET Developer – Security Remediation - 0505 (Winnipeg)
🏢 S.i. Systems
📍 Winnipeg