We are seeking a Senior .NET Developer to engineer scalable enterprise solutions across backend and frontend using C#, .NET, ASP.NET, Angular, and SQL with strong quality standards. You will collaborate on architecture, write unit tests, integrate APIs, and deliver features that may involve AI and Large Language Models (LLM)—apply today.
Responsibilities
Design and develop scalable backend and frontend solutions for enterprise applications
Collaborate with cross-functional teams to deliver robust and maintainable software products
Participate in code reviews and provide feedback to ensure high code quality
Optimize application performance and resolve technical issues as they arise
Integrate third-party APIs and services to meet project requirements
Write and maintain technical documentation for new and existing features
Ensure adherence to best practices throughout the software development lifecycle
Contribute to the continuous improvement of team processes and technical knowledge
Requirements
At least 3 years of relevant experience in software development




High proficiency in C# for application development
Strong experience with the .NET framework for enterprise solution delivery
Hands-on exposure to AI or Large Language Models (LLM) in software projects
Solid understanding of unit testing practices for reliable, maintainable code
Knowledge of software architecture principles for designing scalable systems
Familiarity with SDLC methodologies such as Agile or Scrum
Proficiency in SQL for database management and queries
Experience with Entity Framework, Dapper, or ADO.NET for data access
Experience with ASP.NET for web application development
Experience with Angular for interactive UI development
Excellent spoken and written English, B2+ (Upper-Intermediate) or above
We offer
International projects with top brands
Work with integral teams of highly skilled, diverse peers
Healthcare benefits
Employee financial programs
Paid time off and sick leave
Upskilling, reskilling

📌 Senior .NET Developer (Argentina)
🏢 EPAM Systems
📍 Argentina