Senior Software Engineer – Security (4-month project)

Open to Argentina, Brazil, Canada, Chile, Colombia, Dominican Republic, Peru and Uruguay

We are seeking a Senior Software Engineer with strong .NET Full Stack development experience to support security remediation and platform modernization initiatives. This role will focus on modernizing legacy applications, improving application security, and contributing to authentication and identity management enhancements.

Responsibilities

• Modernize and maintain existing .NET applications.
• Update legacy applications, dependencies, and NuGet packages.
• Design, develop, and maintain REST APIs.
• Support MFA implementation and secure authentication workflows.
• Contribute to application integrations with centralized Identity Providers (IdPs).
• Participate in code reviews and Agile development activities.
• Improve CI/CD processes and follow secure development practices.
• Identify and remediate application security vulnerabilities.

Required Qualifications

• 5+ years of experience with .NET and C# development.
• Strong experience designing and developing REST APIs.
• Experience with Angular and/or Blazor.
• Experience working with Windows Forms applications.
• Experience modernizing legacy applications and upgrading dependencies.
• Experience with CI/CD pipelines.
• Understanding of secrets management best practices.
• Experience working with authentication and authorization mechanisms.
• Ability to work effectively in Agile environments.

Preferred Qualifications

• Experience working with Identity Providers (IdPs) such as Okta, Entra ID, Auth0, or similar platforms.
• Familiarity with OWASP security principles.
• Experience with application security testing tools (SAST/DAST).
• Experience using AI-assisted development tools such as GitHub Copilot.

Additional Information

• Contract Length: 4 months
• Work Arrangement: 100% Remote
• Employment Type: Contractor