Senior Full-Stack .NET + React

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Senior Full-Stack .NET + React based in Brazil. The Senior Full-Stack .NET + React will design and build high-quality, scalable, and maintainable web applications across both backend and frontend layers. You will bring deep expertise in .NET Core and C# alongside strong ReactJS development skills to deliver reliable and responsive digital products. The role combines hands-on engineering with technical leadership, giving you the opportunity to influence architecture, development practices, and overall solution quality. You will collaborate closely with product managers, designers, developers, and other stakeholders throughout the full software development lifecycle. Beyond writing code, you will mentor junior engineers, contribute to technical innovation, and help solve complex engineering challenges. This is a fully remote opportunity in a collaborative, fast-paced environment with significant flexibility and opportunities for professional growth.