




Job Summary: As a Backend Software Engineer at Mercado Libre, you will design and scale innovative and secure systems to democratize 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. Be a reference in adopting AI tools and improving productivity. 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, engineering best 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:** * Designing and implementing services for commission and discount calculations operating with high availability and precision at marketplace scale, ensuring full transaction-level auditability. * Integrating AI tools such as Claude Code into your daily development cycle — code generation, error analysis, PR reviews, and documentation — as a productivity multiplier for the team. Serve as a reference in adopting new tools and workflows emerging from the AI ecosystem, sharing learnings with colleagues. * Providing visibility into task progress without requiring follow-up during execution, actively participating in backlog management, refinement, and technical debt prioritization. * Actively participating in backlog management, refinement, technical debt prioritization, defining processes, methodologies, standards, and workflows that contribute to development excellence. * Participating in architecture definition and identifying technical, process, or functional dependencies with other teams within the initiative, implementing solutions for complex problems. **What are we looking for in you?** * Services available in Fury, BigQuery, Datadog, Grafana, OpenTelemetry, unit tests, integration tests, and End\-to\-End tests. * Solid experience in Java (Spring Boot or similar), with knowledge of design patterns and the ability to apply them appropriately according to context. Experience using AI assistants in engineering tasks (Claude Code, GitHub Copilot or similar), exercising independent judgment to validate, question, and adapt their suggestions before production deployment. * Knowledge of event-driven architectures and large-scale asynchronous processing. * Apply to this position exclusively for people with disabilities. **Are you ready to leave your mark on Latin American technology?** Apply now and join our purpose! *Hybrid work model. Site Colombia.*


