




Job Summary: You will design and scale innovative and secure systems to democratize e-commerce and financial services across Latin America. Key Highlights: 1. Design and scale innovative and secure systems 2. Work in a dynamic environment with cutting-edge technology 3. Optimize applications for high load and efficiency As a **Software Engineer Backend** at Mercado Livre, you will design and scale innovative and secure systems that solve real-world, high-impact problems. You will work in a dynamic environment leveraging cutting-edge technology, applying engineering best practices, proprietary AI models, and continuous learning — all aimed at democratizing e-commerce and financial services across Latin America. Imagine yourself leading challenging, dynamic, and innovative projects, and being responsible for: * Optimizing applications to handle high load and ensure efficient response times for performance and scalability. * Integrating internal and external services, ensuring effective communication between APIs. * Maintaining and refactoring existing code to ensure it remains clean, efficient, and aligned with best practices. * Staying up-to-date with technological trends and changes, implementing continuous improvements. * Ensuring applications are secure against vulnerabilities and adhering to security best practices. * Supporting the team in designing robust architectural solutions to meet evolving product requirements. **What we’re looking for:** * Experience building and consuming RESTful APIs. * Experience developing with Java Spring or Go. * Knowledge of relational and non-relational databases (BigQuery, NoSQL (MongoDB and Redis), SQL (MySQL)). * Experience with software design principles such as SOLID and microservices-oriented design. * Experience with unit, integration, and regression testing. Are you excited to leave your mark on Latin America’s technology landscape? Apply now and join our mission! Hybrid work model. Office located in Osasco, SP.


