Senior Back End Developer (C# .NET)

Brazil · Remote · Full-time · IT

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About the role

C#.NETUX DesignUI Design

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Senior Back End Developer (C# .NET) based in Brazil. We are looking for an experienced Senior Back End Developer to help build a proof of concept for a next-generation loan origination platform for a major US mortgage lender. In this role, you will design and develop robust backend solutions using C# and .NET within an innovative, AI-native software delivery environment. You will translate business requirements and UX/UI designs into functional, scalable software while working alongside experienced technical leaders. A key aspect of the position is leveraging agentic AI tools and development pipelines to accelerate engineering workflows and improve delivery quality. You will contribute to demonstrating how AI-driven software development can transform the way complex applications are built. This is an exciting opportunity for a highly experienced engineer who enjoys technical challenges, autonomy, and working at the forefront of software engineering innovation.