




Job Summary: As a Sr Software Engineer Backend, you will design and scale innovative and secure systems at Mercado Livre, applying engineering best practices and AI 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. Collaborate on architecture design and performance optimization As a **Sr Software Engineer Backend** at Mercado Livre, 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\-yourself leading challenging, dynamic, and innovative projects and **being responsible for:** * Participating in all phases of high-impact product design—analyzing requirements, proposing, and developing solutions that deliver value to both technical and business areas. * Collaborating on architecture and scalability decisions for our products, always prioritizing performance optimization and maintainability. * Leading code reviews and providing constructive feedback to junior developers. * Actively contributing to the definition of high-impact solutions by applying product knowledge and strategic mindset. **What we’re looking for:** * Solid experience developing web applications in Golang, including knowledge of SOLID principles and Clean Code. * Experience developing cloud\-based applications on platforms such as AWS or GCP. * Knowledge of software architecture, including Clean Architecture, Design Patterns, Microservices, asynchronous systems, and messaging. * Familiarity with various data persistence models, relational databases (e.g., MySQL), and NoSQL databases (e.g., MongoDB, ElasticSearch, Redis, or similar). Are you excited to leave your mark on Latin American technology? Apply now and join our purpose! Hybrid work model. Office in Osasco \- São Paulo


