[Job - 27972] Mid-level Fullstack Developer (React + .NET), Brazil

We are looking for a Mid-Level Full Stack Developer with solid experience in React and .NET to help design, build, and maintain scalable, high-quality web applications. You will work across the entire stack, from modern frontend interfaces to robust backend services, collaborating closely with product, design, and other engineering teams.

- Design, develop, and maintain full stack web applications using React, TypeScript, C#, and .NET (preferably .NET Core/.NET 6+)

- Implement responsive and accessible user interfaces, following best practices in UI/UX and WCAG/ARIA standards

- Build and maintain reusable frontend components and UI libraries for multiple business applications

- Design and implement RESTful APIs, ensuring performance, scalability, and security

- Contribute to the architecture of microservices and scalable backend systems

- Write and maintain automated tests (unit, integration, API, and end-to-end) using tools such as Jest, React Testing Library, Playwright, and .NET testing frameworks

- Collaborate with DevOps to configure and maintain CI/CD pipelines (preferably in Azure DevOps)

- Work with cloud services (preferably Azure) for deployment, monitoring, and troubleshooting

- Participate in code reviews, provide constructive feedback, and help maintain high engineering standards

- Diagnose and resolve complex technical issues across the stack, optimizing performance and reliability

- Strong experience with React and TypeScript in modern frontend development

- Experience building and maintaining reusable component libraries and working with tools such as Storybook

- Solid understanding of JavaScript fundamentals and modern ES6+ features and patterns

- Experience with .NET (preferably .NET Core/.NET 6+) and C# for backend development

- Experience designing and consuming RESTful APIs

- Understanding of microservices architecture and scalable backend design

- Experience with automated testing on both frontend and backend (unit tests, API tests, integration and/or E2E)

- Experience with relational databases and database design concepts

- Familiarity with cloud platforms (preferably Microsoft Azure) and cloud-native development practices

- Experience with CI/CD concepts and pipelines, ideally using Azure DevOps and YAML

- Strong problem-solving skills, attention to detail, and ability to work collaboratively in a cross-functional team

- Good communication skills in English (written and spoken)

- Experience with microfrontend architectures and modular frontend design

- Experience with UI frameworks and styling libraries such as Chakra UI

- Experience with Vite or other modern build tools and bundlers

- Experience with Capacitor or similar tools for cross-platform development

- Knowledge of Clean Architecture and SOLID principles in both frontend and backend contexts

- Experience with monitoring, logging, and observability tools in production environments