




Job Summary: As a Senior Backend Engineer, you will design and scale innovative and secure systems in a dynamic, cutting-edge technology environment, with the purpose of democratizing e-commerce and financial services across Latin America. Key Highlights: 1. Design and scale innovative and secure systems. 2. Work with cutting-edge technology and proprietary AI models. 3. Lead challenging, dynamic, and innovative projects. As a **Senior** **Backend** **Engineer** 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, 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:** * Developing high-quality code, performing complex refactors, and conducting code reviews. * Designing and maintaining robust, scalable APIs to ensure resilient, modular solutions aligned with business objectives. * Making data-driven decisions using dashboards, analytical tools, and the team’s collective experience. * Designing distributed architectures using advanced patterns. * Defining testing and observability strategies, implementing automated tests, metrics, and logs to ensure reliability and performance. **What we’re looking for:** * Solid experience in similar roles, with proficiency in languages such as Java and/or Golang. * Knowledge of relational and non-relational databases. * Prior experience designing and developing distributed architectures and microservices. * Experience with testing, ensuring high security standards. **Are you excited to leave your mark on Latin American technology?** Apply now and join our mission! Hybrid work model. Office: São Paulo (Osasco\-SP).


