Full-Stack .NET Developer

We are seeking a Full-Stack .NET Developer to strengthen application security, support legacy systems, and help modernize services across .NET Framework and modern .NET. You will work across backend, database, and frontend tasks.

Responsibilities

• Investigate and remediate application security vulnerabilities including OWASP Top 10 findings
• Analyze SAST/DAST results and implement secure code fixes for SQL injection and XSS risks
• Support and modernize legacy .NET applications using ASP.NET MVC and WCF services
• Build and enhance .NET Web APIs and backend services with secure patterns
• Implement secure database interactions using ADO.NET with Microsoft SQL Server
• Update frontend features and fixes using JavaScript alongside existing UI code
• Coordinate with DevOps to enable secure CI/CD and reliable production deployments
• Document remediation work, modernization changes, and security best practices

Requirements

• Full-stack .NET experience (2+ years) with production applications
• Security remediation experience addressing OWASP Top 10 risks
• Legacy application experience with ASP.NET MVC, WCF, and large codebases
• Modern .NET experience with Web APIs and service-oriented design
• Strong database skills with Microsoft SQL Server and secure data access
• Solid programming skills in JavaScript for frontend integration
• Strong troubleshooting skills with root-cause analysis and debugging
• Clear communication skills for coordinating fixes and priorities
• Upper-Intermediate English proficiency (B2, Upper-Intermediate)

Nice to have

• OAuth2 implementation experience
• OpenID Connect (OIDC) and token-based auth knowledge
• Octopus Deploy experience
• Strong HTML and CSS skills
• jQuery maintenance experience