As a **Senior** **Software Engineer** at Mercado Libre, you will design and scale innovative and secure systems that solve real, high-impact problems. You will work in a dynamic environment with cutting-edge technology, applying sound engineering practices, proprietary AI models, and continuous learning, with the purpose of democratizing e-commerce and financial services in Latin America. Imagine\-yourself leading challenging, dynamic, and innovative projects and **being responsible for:** * Integrating the Cloud and Platform team with an overall view of the development of our internal platform and exposure to projects with cross\-Meli impact. * Designing and implementing solutions to solve high-volume, resilient problems with a strong focus on scalability, productivity, and uptime. Design, implement, maintain, and improve highly complex Fury services (such as BigQueue, KVS, OS, DS, Streams, etc.) so they can be used as foundational services by all applications in the Meli ecosystem. * Actively participating in the creation of new services arising from analysis of BU needs or technological advancements, as well as in the organization, definition, and prioritization of the team's backlog and roadmap. * Focusing on component reuse, task automation, development of support tools (e.g., CLIs), etc. * Listening to development teams (e.g., handling support tickets, surveys, and presentations) to understand their needs and improve developer experience, then addressing those needs through service development with a strong emphasis on usability and documentation. **What we look for in you?** * Experience in Backend development using languages such as: Java, Go, NodeJS, REST APIs, Git, New Relic, Elastic, among others. * Knowledge of cloud-based services. * Experience with concurrent programming and high throughput. * Availability to perform deployment, maintenance, or support tasks at night. The most critical implementations of our solutions occur between 00:00 and 02:00. These tasks are planned by the team, always considering team availability. **Are you excited to leave your mark on Latin America’s technology landscape?** Apply now and join our mission! Hybrid work mode. Office located in Osasco/SP.