As a **Senior** **Software Engineer** at Mercado Livre, 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:** * Joining the Cloud and Platform team with a broad view of developing our internal platform and exposure to projects with cross-Meli impact. * Designing and implementing solutions to solve high-volume, resilient problems with 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 creating new services arising from analysis of business unit needs or technological advancements, as well as in organizing, defining, and prioritizing 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 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. * Understanding of concurrent programming and high throughput. * Availability to perform deployment, maintenance, or support tasks during nighttime hours. **Are you excited about making your mark on Latin America's technology landscape?** Apply now and join our mission! Hybrid work model. Office locations in Osasco/SP or Florianópolis/SC