Job Summary: We are seeking a professional to work on the development and evolution of web, mobile, and API applications, with emphasis on well-structured code, security, performance, and scalability—integrating backend and frontend. Key Highlights: 1. Experience in developing REST APIs and modern interfaces. 2. Culture focused on an inclusive and collaborative environment. 3. Opportunities for growth and talent development. We are looking for a professional to build web, mobile, and API applications, emphasizing well-structured code, security, performance, and scalability. Responsibilities include developing REST APIs, modern interfaces, and integrating backend, web frontend, and mobile applications. We are a leader in sugarcane-based biofuel production in Brazil’s North and Northeast regions. **Join our team!** **Responsibilities and Duties** * Develop, maintain, and evolve REST APIs using Node.js, prioritizing clarity, organization, and predictability; * Implement authentication and authorization using JWT and related flows; * Develop features for file upload, storage, and management; * Structure the backend into well-defined layers (routes, controllers, services, models, and middlewares); * Write and maintain API documentation for integration and maintenance (Swagger / OpenAPI); * Use Docker to standardize development and deployment environments; * Apply security best practices, data validation, and error handling; * Participate in code reviews, continuous improvements, and architectural discussions; * Ensure consistent integration between backend, web frontend, and mobile applications; * Contribute to codebase evolution with focus on maintainability, readability, and scalability. **Requirements and Qualifications** * Availability to work remotely (Home Office); * Strong technical communication skills, both written and verbal; * Exceptional personal organization and discipline to work autonomously. * **Technical Knowledge:** **Backend** * Node.js with Express for REST API development * Authentication and authorization with JWT * API documentation using Swagger / OpenAPI * Docker usage for development and production environments **Web Frontend** * React consuming REST APIs * Best practices in componentization and state management * HTML, CSS, and JavaScript **Mobile** * React Native consuming the same backend APIs * Reuse logic across web and mobile whenever possible **Database** * Experience with MySQL, PostgreSQL, or SQL Server **Version Control** * Git, with experience in versioning strategies (e.g., Git Flow or similar) **Additional Information** * Home Office allowance; * Life insurance; * Partnerships with optical stores, medical clinics, and dental clinics; * Internal and external training programs; * Telemedicine (online medical consultations); We are thousands of passionate professionals. We take immense pride in our ability to generate positive impact and recognize that, acting as owners, each of us plays a vital role in the success of our ecosystem. Moreover, all our major achievements carry the flavor of collaboration! Our success is shared, and we believe that through collaboration, we can delight our customers even more with the brands they love today—and simultaneously meet tomorrow’s evolving preferences. Our culture focuses on building an inclusive and collaborative environment where people can be their best selves—and help us become our best version! We seek individuals with passion, curiosity, and courage to make a difference here. We welcome diverse talents because we believe great ideas emerge from people with varied backgrounds. We offer opportunities for those entering the job market and are passionate about empowering our people. **It is by working and growing together that we fulfill our purpose: We Dream Big for a Future with More Reasons to Celebrate!**