Job Title: Back-End Engineer / Platform Engineer (GraphQL & Node.js) Location: Brazil / Remote Employment Type: Contract About the Role We are looking for an experiencedBack-End / Platform Engineerto design and build scalable, data-driven APIs and backend services. The ideal candidate will have strong expertise inGraphQL, Node.js, and TypeScript, along with experience in cloud-native and containerized environments.Mandatory Skills GraphQL API Development (GraphQL & REST) Node.js TypeScript Key Responsibilities Design, develop, and maintaindata-driven APIsusing GraphQL and REST Build and optimize backend services interacting withrelational and NoSQL databases Design and manageGraphQL schemas, resolvers, and performance optimization Collaborate with data, product, and application teams to definedata access patterns ImplementAPI security, versioning, and governance best practices Deploy and manage services usingDocker and Kubernetes Work withcloud platforms (AWS or OCI)to build scalable and reliable systems Monitor, troubleshoot, and optimizeapplication and database performance Participate inarchitecture discussionsand mentor junior engineers Required Skills & Experience 6+ years of experience insoftware engineering or backend development Strong hands-on experience withAPI development (GraphQL & REST) Solid understanding ofdatabase design and optimization (SQL & NoSQL) Experience withcloud platforms (AWS or Oracle Cloud Infrastructure - OCI) Hands-on experience withcontainers and orchestration (Docker, Kubernetes) Proficiency in at least one backend language:Node.js (preferred), Java (Spring Boot), or Python Strong problem-solving and communication skills