EPAM is a leading general provider of digital platform engineering and development services. We are committed to having a positive impact on our customers, our employees, and our communities. We embrace a dynamic and inclusive culture. Here you will collaborate with multi-national teams, contribute to a myriad of innovative projects that deliver the most creative and cutting-edge solutions, and have an opportunity to continuously learn and grow. No matter where you are located, you will join a dedicated, creative, and diverse community that will help you discover your fullest potential.

We are looking for a Full-Stack .NET Developer to remediate security vulnerabilities, support legacy applications, and help modernize services across .NET technologies. You will work across the backend, database, and UI while collaborating on secure delivery practices.

Responsibilities

• Investigate and remediate security vulnerabilities, including OWASP Top 10 issues and common injection risks
• Support and modernize legacy .NET applications built with ASP.NET MVC and related technologies




• Develop and enhance .NET services and APIs to improve stability and security
• Implement secure data access patterns using ADO.NET with Microsoft SQL Server
• Fix and improve front-end behavior using JavaScript in server-rendered web applications
• Coordinate with DevOps partners to support secure CI/CD and production deployments
• Maintain daily availability until 5:00 PM CT to support collaboration and delivery needs

Requirements

• 2+ years of .NET development experience with legacy and modern .NET
• Hands-on application security experience with OWASP Top 10 and vulnerability remediation
• Strong ASP.NET MVC skills for maintaining and enhancing web applications
• Solid ADO.NET skills for secure and efficient data access
• Strong Microsoft SQL Server skills including secure query design
• Practical JavaScript skills for front-end feature development and fixes
• Working WCF knowledge for supp

📌 Full-Stack .NET Developer (Colombia)
🏢 EPAM Systems
📍 Colombia