Back end engineer / Platform Engineer

Role: Backend Engineer / Platform Engineer

Location: Brazil (Remote) Contract Type: Contract (B2B) Mandatory Skills GraphQL API Development Node.js TypeScript Required Skills & Experience 6+ years of experience in software engineering or backend development Strong experience building APIs using GraphQL and REST Solid understanding of database design and optimization (SQL and NoSQL) Hands-on experience with cloud platforms (AWS or OCI) Experience with containers and orchestration tools (Docker, Kubernetes) Proficiency in at least one backend language such as Node.js, Java (Spring Boot), or Python Key Responsibilities Design, develop, and maintain data-driven APIs using GraphQL and REST Build and optimize backend services interacting with relational and NoSQL databases Design and manage GraphQL schemas, resolvers, and API performance Collaborate with data, product, and application teams to define data access patterns Implement API security, versioning, and governance best practices Deploy and manage services using Docker and Kubernetes Work with AWS or OCI cloud services to build scalable and reliable systems Monitor, troubleshoot, and optimize application and database performance Participate in architecture discussions and mentor junior engineers