Job Summary: Stefanini is seeking a Backend Developer to design, develop, and maintain robust, secure, and scalable backend services, ensuring proper API implementation and efficient integration with systems. Key Highlights: 1. Develop and maintain REST APIs using NestJS 2. Design backend architectures following the BFF (Backend for Frontend) pattern 3. Collaborate with frontend, mobile, and other technical teams Join Stefanini! At Stefanini, we are more than 30,000 geniuses connected from 41 countries, doing what they love and co-creating a better future. We are looking for a Backend Developer **Responsibilities and Duties** **Position Objective:** Design, develop, and maintain robust, secure, and scalable backend services, ensuring correct API implementation and efficient integration with frontend applications and external systems, adhering to quality, security, and development best practices. **Main Responsibilities:** * Develop and maintain REST APIs using **NestJS**, appropriately applying modules, controllers, services, guards, and interceptors. * Design backend architectures following the **BFF (Backend for Frontend)** pattern, orchestrating and adapting data according to frontend requirements. * Implement secure authentication and authorization mechanisms (e.g., JWT, OAuth2, or other applicable standards). * Ensure software quality through unit and integration testing, using tools such as Jest or similar. * Document APIs using standards like Swagger / OpenAPI, ensuring clarity and maintainability. * Collaborate with frontend, mobile, and other technical teams, actively participating in architecture and solution design discussions. * Support continuous integration and deployment processes, using basic DevOps tools (Docker, CI/CD pipelines). **Requirements and Qualifications** **Technical Requirements:** * Proven experience in backend development with **NestJS**. * Advanced proficiency in TypeScript and modern JavaScript (ES6+). * Experience in designing, developing, and consuming REST APIs. * Knowledge of BFF architecture and integration patterns. * Experience implementing secure authentication and authorization. * Experience with automated testing (unit and integration). * Basic/intermediate knowledge of DevOps tools (Docker, CI/CD). **Key Competencies:** * Analytical and technical design capability. * Quality orientation and adherence to development best practices. * Effective technical communication skills. * Collaborative work in agile environments. **Additional Information** Stefanini benefits Are you looking for a place where your ideas shine? With over 38 years of experience and a global presence, at Stefanini we transform tomorrow together. Here, every action matters and every idea can make a difference. Join a team that values innovation, respect, and commitment. If you are a disruptive individual, committed to continuous learning, and innovation is in your DNA, then we’re exactly what you’re looking for. Come and let’s build a better future—together!