Job Summary: You will design and scale innovative and secure systems at Mercado Libre, applying sound engineering practices and AI to democratize e-commerce and financial services across Latin America. Key Highlights: 1. Design and scale high-impact, innovative, and secure systems. 2. Work with cutting-edge technology and apply sound engineering practices. 3. Lead challenging, dynamic, and innovative projects. As a **Backend Software Engineer** at Mercado Libre, 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 sound engineering practices, proprietary AI models, and continuous learning—all to democratize e-commerce and financial services across Latin America. Imagine 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 are we looking for?** * More than 4 years of experience in similar roles, with strong expertise in languages and technologies such as Java and Spring Boot. * Knowledge of relational and non-relational databases. * Experience designing and developing distributed architectures and microservices. * Experience in testing, ensuring high security standards. **Are you ready to leave your mark on Latin American technology?** Apply now and join our mission! Hybrid work model. **Site Medellin**