Mid-Level .NET Developer

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Mid-Level .NET Developer based in Brazil. The Mid-Level .NET Developer will contribute to the maintenance, modernization, and continuous improvement of web applications built with .NET and React. A key focus will be strengthening application security by modernizing authentication and authorization systems while upgrading existing solutions to newer .NET Core versions. You will collaborate with technical teams and communicate directly with stakeholders to understand business needs and prioritize development work. The role involves working across cloud infrastructure, relational databases, third-party integrations, and automated delivery pipelines. You will help ensure applications remain secure, reliable, maintainable, and aligned with evolving technical requirements. This is an opportunity to contribute to application modernization within a collaborative, remote engineering environment.