Full-Stack .NET Engineer — Secure APIs & Modernization

EPAM Systems; Colombia; On-site; COP 191,883,000 - 287,825,000; Full time

Benefits offered by this job

Healthcare benefits

Global career opportunities

Paid time off

Job summary

EPAM Systems seeks a Full-Stack .NET Developer in Colombia to strengthen application security, support legacy systems, and modernize services across .NET Framework and modern .NET. You will work across backend, database, and frontend tasks.

Responsibilities include remediating OWASP Top 10 findings, analyzing SAST/DAST results, updating frontend features, and coordinating with DevOps for secure CI/CD and production deployments.

Qualifications

• 2+ years of production Full-stack .NET experience.
• 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.

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.

Skills

Full-stack .NET

Security remediation

ASP.NET MVC

WCF

Web APIs

JavaScript

SQL Server

Debugging

English communication

CI/CD

Tools

Octopus Deploy

OpenID Connect

Job description

EPAM Systems seeks a Full-Stack .NET Developer in Colombia to strengthen application security, support legacy systems, and modernize services across .NET Framework and modern .NET. You will work across backend, database, and frontend tasks.

Responsibilities include remediating OWASP Top 10 findings, analyzing SAST/DAST results, updating frontend features, and coordinating with DevOps for secure CI/CD and production deployments.