We are looking for a
Senior Full-Stack .NET Developer
experienced with both legacy .NET Framework and modern .NET (.NET 6/8+). The primary focus is security vulnerability remediation, legacy application support, and modernization.
Investigate and remediate application security vulnerabilities, including OWASP Top 10, SAST/DAST findings, SQL injection, XSS, and dependency risks Maintain and modernize legacy ASP.NET Web Forms, MVC, WCF, and ASMX applications Develop and enhance ASP.NET Core Web APIs and modern .NET services Work with SQL Server, ADO.NET, EF Core/Dapper, ensuring secure data access Support frontend development using HTML, CSS, JavaScript/TypeScript, jQuery,



and modern SPA frameworks Collaborate with DevOps to support secure CI/CD and production deployments 3+ years of full-stack .NET development experience Expertise in C#, .NET Framework, and SQL Server Proficiency in ASP.NET Web Forms and MVC Background in .NET 6/8+, ASP.NET Core, and REST APIs Understanding of dependency injection Practical application security experience and knowledge of OWASP Top 10 Experience with React, Angular, or Vue.js Strong troubleshooting skills and ability to work with large legacy codebases English proficiency at an Upper-Intermediate level (B2) or higher Experience with TeamCity, Octopus Deploy, and IIS Knowledge of OAuth2, OIDC, and JWT Skills in HTML, CSS, and jQuery

📌 Senior Full-Stack .Net Developer (Security & Modernization) (México)
🏢 Epam Systems
📍 México