Unravel S.A in Buenos Aires is seeking a Senior Fullstack Developer to join a project for a major US foundation in pre‑school education. This role involves developing backend services using TypeScript in a serverless architecture on AWS and implementing APIs with AWS AppSync and API Gateway. The ideal candidate will have strong hands-on experience with Shopify, solid knowledge of React, and a good understanding of REST and GraphQL APIs. English at C1 level is required for effective collaboration with a US-based team. #J-18808-Ljbffr