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 We offer 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 EPAM is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, age, sexual orientation, gender identity or expression, disability, protected veteran status, or any other characteristic protected by applicable law.

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

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+)

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 EPAM is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, age, sexual orientation, gender identity or expression, disability, protected veteran status, or any other characteristic protected by applicable law.