Job Summary: You will design and scale innovative and secure systems to democratize e-commerce and financial services, applying sound engineering practices and AI. Key Highlights: 1. Design and scale high-impact, innovative, and secure systems 2. Work with cutting-edge technology and proprietary AI models 3. Develop high-quality code and distributed architectures 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, sound engineering practices, proprietary AI models, and continuous learning—all aimed at democratizing e-commerce and financial services across Latin America. Imagine tackling 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 by 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 5 years of experience in similar roles, with strong proficiency 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 American technology?** Apply now and join our mission! Hybrid work model. **Bogotá/Medellín \- Colombia**