




Job Summary: As a Sr Software Engineer Backend, 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 using cutting-edge technology 2. Collaborate on product architecture and scalability definitions 3. Develop web applications in Golang and cloud-based environments (AWS/GCP) 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, applying engineering best practices, proprietary AI models, and continuous learning — all with the purpose of 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 definitions for our products, always prioritizing performance optimization and maintainability. * Leading code reviews and providing constructive feedback to junior developers. * Actively contributing to defining high-impact solutions by applying product knowledge and a 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 such as AWS or GCP. * Knowledge of architecture concepts, including Clean Architecture, Design Patterns, Microservices, asynchronous systems, and messaging. * Familiarity with various data persistence models, relational databases such as MySQL, and NoSQL databases such as MongoDB, Elasticsearch, Redis, or similar. Are you excited to leave your mark on Latin America’s technology landscape? Apply now and join our mission! Hybrid work model. Office located in Osasco — São Paulo


