As a **Software Engineer Backend** at Mercado Libre, you will design and scale innovative and secure systems that solve real, high-impact problems. You will work in a dynamic environment with cutting-edge technology, applying sound engineering practices, proprietary AI models, and continuous learning, with the purpose of democratizing e-commerce and financial services in Latin America. Imagine taking on challenging, dynamic, and innovative projects and **being responsible for**: * Developing high-quality code, complex refactors, and 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 are we looking for in you?** * More than 5 years of experience in similar roles, proficient in languages such as Java, Golang, and/or Python. * Knowledge of relational and non-relational databases. * Experience designing and developing distributed architectures and microservices. * Experience with testing, ensuring high security standards. **Are you ready to leave your mark on Latin America's technology landscape?** Apply now and join our mission! *Hybrid work mode. Site: Mexico City.*