Job Summary: You will design and scale innovative and secure systems in a dynamic environment with cutting-edge technology, applying sound engineering practices to democratize e-commerce and financial services. Key Highlights: 1. Lead challenging, dynamic, and innovative projects 2. Design and maintain robust and scalable APIs 3. Design distributed architectures applying advanced patterns As a **Software Engineer Backend** 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 aimed at democratizing e-commerce and financial services across Latin America. **Imagine leading challenging, dynamic, and innovative projects—and being responsible for:** * Writing high-quality code, performing complex refactors, and conducting code reviews. * Designing and maintaining robust and 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 applying 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 proficiency in languages such as Java and/or Python. * Knowledge of relational and non-relational databases. * Experience designing and developing distributed architectures and microservices. * Experience building distributed systems, REST APIs, scalable solutions, and cloud-based environments. Are you ready to make your mark on Latin American technology? Apply now and join our purpose! Hybrid work model. **Site CABA, Argentina**