




Job Summary: Design and scale innovative and secure systems in a dynamic environment, 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 using cutting-edge technology. 2. Work with proprietary AI models and continuous learning. 3. Contribute to the democratization of e-commerce in Latin America. As a **Senior 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 designing the new user experience for declaring tax-related data; * Developing this experience while ensuring usability, security, and regulatory compliance; * Building and evolving microservices in Golang, using Clean Architecture and event-driven architecture to ensure low coupling and high scalability; * Contributing to improving team culture and processes through ideas, best practices, and high-quality code. **What we’re looking for in you?** * Backend development experience; experience with Golang is a plus; * Knowledge of application design (Clean Architecture, SOLID, Clean Code); experience with microservices and CI/CD is desirable; * Experience with REST APIs, distributed systems, asynchronous communication, and automated testing, as well as familiarity with observability tools such as New Relic, Kibana, and Datadog; * Strong communication skills, a collaborative mindset, and a continuous learning attitude. **Are you excited to leave your mark on Latin America’s technology landscape?** Apply now and join our mission! Hybrid work model. Melicidade office (São Paulo).


