Senior Full Stack .NET Developer – Security Remediation - 0505

Sr. Full Stack .NET Developer – Security Remediation - 0505

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, JavaScript, 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 GitLab and TFS/Azure DevOps.
Configure and deploy applications on IIS and Windows Server settings.
Perform unit testing, code reviews, and regression testing.

Must Haves:
Microsoft SQL Server and T-SQL
OWASP Top 10 and secure coding practices
Experience supporting penetration test remediation initiatives
.NET Framework, .NET Core/.NET, C#
ASP.NET Web Forms, ASP.NET Web API, WCF Services
Angular, React, JavaScript, jQuery, HTML5, CSS3, Node.js
GitLab, TFS/Azure DevOps, CI/CD
IIS, Windows Server, Entra ID, Auth0, AD-LDS

Disclaimer: AI may be used in evaluating candidates.

This posting is for an existing vacancy.
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📌 Senior Full Stack Net Developer – Security Remediation 0505 Toronto (Canada)
🏢 S.i. Systems
📍 Canada