FullStack Developer - Node/React - Argentina only!

Business-level fluency in English (written and spoken). 7+ years of experience developing and deploying web applications, with a consistent record of shipping features. Strong proficiency in Node.js and TypeScript, including experience with Express.js, GraphQL, Apollo, and MongoDB. Ability to debug complex production issues across multiple services and layers of the stack. Experience building complex, scalable web systems. Familiarity with automated testing frameworks (e.g., Jest, Mocha, Playwright, Cypress). Comfort working in an agile, experimentation-friendly environment. A growth mindset, with curiosity toward emerging technologies (including AI).

Design and implement scalable, multi-tenant backend services and APIs. Work with technologies such as Node.js, TypeScript, JavaScript, MongoDB, GraphQL, Apollo, AWS (EC2, S3, Lambda), Kafka. Demonstrate expertise across multiple technical domains while contributing to functional and engineering strategy. Lead projects that directly impact team deliverables and long-term architectural direction. Write maintainable, tested, high-performance code for both backend and frontend components. Author and evaluate design documents to guide technical decision-making. Collaborate closely with product managers and designers. Mentor junior engineers and contribute to a strong engineering culture. Participate in initiatives such as internal hackathons, improving hiring processes, or creating technical content.