SR FullStack Developer - [C# / NodeJS + React]

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a SR FullStack Developer - [C# / NodeJS + React] based in Brazil. As a Senior FullStack Developer, you will build and evolve modern applications across both backend and frontend layers, working with C#, Node.js, and React. You will contribute to cloud-based solutions and help shape scalable, reliable, and maintainable architectures. The role combines hands-on development with technical ownership, experimentation, and problem solving. You will work closely with Developers, Architects, Product Managers, Business Analysts, and Infrastructure teams in a collaborative environment. You will also contribute to CI/CD, infrastructure as code, microservices, and event-driven architectures. Engineers are expected to take ownership of quality, testing, and technical decisions while connecting technology solutions to meaningful business outcomes.