Job Summary: We are looking for a Backend Developer to define and monitor best development practices, program and test systems, propose technological improvements, and assist in the growth of new developers. Key Highlights: 1. Opportunity to interact with diverse technologies and varied projects 2. Dynamic and challenging environment with autonomy and clear goals 3. Professional growth at one of the best companies to work for **What We Are Looking For?** **Main Responsibilities:** Define best development practices; Program, code, and test systems in the relevant language, transitioning across Backend development projects; Implement complex functionality; Propose technological improvements to systems; Monitor adherence to best system development practices; Validate the existing test coverage in projects; Validate new application features; Monitor application system performance; Propose technological improvements to systems; Anticipate opportunities and issues proactively, acting swiftly and effectively by developing preventive solutions; Assist junior developers and contribute to project decision-making; Perform system maintenance, implementing necessary changes to meet user requirements; Develop assembly, debugging, and testing tasks for programs, performing maintenance on already-developed programs. **Requirements:** Experience in Web application and API development Technical Requirements Backend / APIs * Proven experience in REST API development * Solid knowledge of at least one backend stack: Java (Spring Boot), Node.js, Python (Django / FastAPI) * Java (Spring Boot) * Node.js * Python (Django / FastAPI) * Authentication and security (OAuth2, JWT) * Integration with relational and/or NoSQL databases * Messaging systems (Kafka, SQS, etc.) are desirable Architecture & DevOps * SOLID principles and Clean Architecture * Version control with Git * Experience with CI/CD * Containers (Docker) and basic Kubernetes concepts * Cloud experience (AWS, GCP, or Azure) Mobile (a plus) * Flutter * Knowledge of mobile architectures: MVVM, Clean Architecture, MVP * MVVM, Clean Architecture, MVP * Integration with REST APIs (HTTP/JSON) * Publishing and maintaining apps on app stores (Play Store / App Store) **Work Location:** This is an Anywhere Office position—you will work 100% remotely. **Why Build Your Career at Meta?** We offer autonomy, clear goals, and a dynamic and challenging environment where professionals have the opportunity to interact with diverse technologies, participate in all types of projects, bring new ideas, and work from anywhere in Brazil—and why not, the world. Additionally, we are one of the best companies to work for in Brazil according to Great Place to Work, and among the top 10 fastest-growing companies in the country for three consecutive years, according to the Informática Hoje Yearbook. **What Are Our Values?** * We are people serving people * We think and act like owners * We strive for performance * We grow and learn together * We pursue excellence and simplicity * Innovation and creativity are in our DNA All individuals are welcome regardless of their condition, disability, ethnicity, religious belief, sexual orientation, appearance, age, or similar factors. We want you to grow with us in an inclusive environment full of opportunities. If this resonates with you, then \#JoinMeta!