Job Title: Back-end / Platform Engineer Location: Brazil (Remote) Contract Type: Contract 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. • Implement API security, versioning, and governance best practices. • Deploy and manage services using container technologies such as Docker and Kubernetes. • Work with cloud platforms (AWS or OCI) to build scalable and reliable systems. • Monitor, troubleshoot, and optimize application and database performance. • Participate in architecture discussions and contribute to system design decisions. • Mentor junior engineers and promote best practices within the engineering team. Required Skills & Experience • 6+ years of software engineering or backend development experience. • Strong experience with API development (GraphQL and REST). • Solid understanding of database design and optimization (SQL & NoSQL). • Hands-on experience with cloud platforms (AWS or OCI). • Experience with containerization and orchestration (Docker, Kubernetes). • Proficiency in at least one backend language: Node.js, Java (Spring Boot), or Python. • Strong problem-solving skills and ability to design scalable systems. • Familiarity with API security, versioning, and monitoring tools. • Excellent communication skills and ability to collaborate in a distributed team environment.