Job Title: Back-end Engineer / Platform Engineer Location: Brazil (Remote) Employment Type: Contract Job Summary: We are looking for an experienced Back-end / Platform Engineer to design and develop scalable APIs and backend services. The ideal candidate will have strong expertise inGraphQL, API development, Node.js, and TypeScript, along with experience building cloud-based applications. Required Skills & Experience: 6+ years of software engineering or backend development experience Strong experience withGraphQL and REST API development Proficiency inNode.js and TypeScript Solid understanding ofdatabase design and optimization (SQL & NoSQL) Hands-on experience withcloud platforms such as AWS or OCI Experience withDocker and Kubernetesfor containerization and orchestration Knowledge of backend frameworks such asSpring Boot, Python, or Node.js Key Responsibilities: Design, develop, and maintainGraphQL and REST APIs Build and optimize backend services interacting withrelational and NoSQL databases Design and manageGraphQL schemas and resolvers ImplementAPI security, versioning, and governance best practices Deploy and manage applications usingDocker and Kubernetes Work withAWS or OCIto build scalable and reliable systems Monitor, troubleshoot, and optimize application performance Collaborate with cross-functional teams and participate in architecture discussions