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 in GraphQL, 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 with GraphQL and REST API development Proficiency in Node.Js and TypeScript Solid understanding of database design and optimization (SQL & NoSQL) Hands-on experience with cloud platforms such as AWS or OCI Experience with Docker and Kubernetes for containerization and orchestration Knowledge of backend frameworks such as Spring Boot, Python, or Node.Js Key Responsibilities: Design, develop, and maintain GraphQL and REST APIs Build and optimize backend services interacting with relational and NoSQL databases Design and manage GraphQL schemas and resolvers Implement API security, versioning, and governance best practices Deploy and manage applications using Docker and Kubernetes Work with AWS or OCI to build scalable and reliable systems Monitor, troubleshoot, and optimize application performance Collaborate with cross-functional teams and participate in architecture discussions