Fullstack Engineer (Backend-focused) – Remote (Buenos Aires, Argentina) We’re looking for a dynamic Fullstack Engineer with a strong backend focus to join a growing, fast-paced team. This role is ideal for someone who enjoys building end-to-end features, working across the stack, and is excited about leveraging AI in real-world applications. What You’ll DoBuild and ship production-ready features across backend and frontend Develop and maintain scalable APIs and services (Node.js or Python) Contribute to frontend development using React and modern frameworks Work closely with product and engineering teams to deliver high-impact solutions Integrate AI tools and APIs into applications and workflows Debug and resolve issues across the stack in a production environment What We’re Looking For3-6 years of experience in full-stack development Strong backend skills with Node.js and/or Python Experience with React or similar frontend frameworks (Vue, Angular, etc.) Solid understanding of APIs, databases, and system design Exposure to AI tools, APIs, or strong interest in working with AI Proactive, adaptable, and comfortable working in fast-moving environments Good communication skills in English Nice to HaveExperience working with AI/LLM APIs or building AI-powered features Familiarity with cloud platforms (AWS, GCP, or similar) Experience in startup or high-growth environments