Full-Stack .NET Developer (Security & Modernization)

We are looking for a Full-Stack .NET Developer with experience in both legacy .NET Framework and modern .NET (.NET 6/8+). You will contribute to security vulnerability remediation, legacy application support, and modernization efforts under the guidance of senior team members.

Responsibilities

• Assist in investigating and remediating application security vulnerabilities, including OWASP Top 10, SAST/DAST findings, SQL injection, XSS, and dependency risks
• Support and help modernize legacy ASP.NET Web Forms, MVC, WCF, and ASMX applications
• Participate in the development and enhancement of ASP.NET Core Web APIs and modern .NET services
• Work with SQL Server, ADO.NET, EF Core/Dapper, following secure data access practices
• Contribute to frontend development using HTML, CSS, JavaScript/TypeScript, jQuery, and modern SPA frameworks
• Collaborate with DevOps engineers on CI/CD processes and production deployments

Requirements

• 2+ years of full-stack .NET development experience
• Solid knowledge of C#, .NET Framework, and SQL Server
• Working experience with ASP.NET Web Forms and MVC
• Familiarity with .NET 6/8+, ASP.NET Core, and REST APIs
• Understanding of dependency injection
• Basic application security awareness and familiarity with OWASP Top 10
• Experience with at least one of the following: React, Angular, or Vue.js
• Good troubleshooting skills and willingness to work with legacy codebases
• English proficiency at an Intermediate level or higher (B1+)

Nice to have

• Exposure to TeamCity, Octopus Deploy, or IIS
• Basic understanding of OAuth2, OIDC, and JWT
• Skills in HTML, CSS, and jQuery

Benefits

• International projects with top brands
• Work with global teams of highly skilled, diverse peers
• Healthcare benefits
• Employee financial programs
• Paid time off and sick leave
• Upskilling, reskilling and certification courses
• Unlimited access to the LinkedIn Learning library and 22,000+ courses
• Global career opportunities
• Volunteer and community involvement opportunities
• EPAM Employee Groups
• Award-winning culture recognized by Glassdoor, Newsweek and LinkedIn