




Job Summary: As a Backend Software Engineer, you will design and scale innovative and secure systems to democratize e-commerce and financial services across Latin America. Key Responsibilities: 1. Design and develop high-performance and scalable backend services. 2. Participate in architecture and solution design decisions. 3. Serve as a technical reference to elevate the quality of solutions. 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 aimed at democratizing e-commerce and financial services across Latin America. Imagine tackling challenging, dynamic, and innovative projects—and being **responsible for:** * Designing and developing high-performance and scalable backend services governing campaigns, item eligibility, and commissions—operating across multiple sites and handling high volumes. * Working on a distributed architecture to improve reliability and technical quality. * Participating in architecture and solution design decisions to ensure technical quality, performance, and reliability in high-traffic systems. * Serving as a technical reference within the team—contributing to elevating solution quality, engineering best practices, and platform evolution. **What are we looking for?** * Solid backend development experience with Java or Go, building APIs and microservices in distributed environments. * Experience designing highly scalable, low-latency systems capable of operating under high-traffic conditions. * Demonstrated ability to evaluate technical trade-offs and actively contribute to architecture decisions and solution design. **Ready to leave your mark on Latin American technology?** Apply now and join our mission! Hybrid work model. **Site Argentina, Buenos Aires**


