Fullstack Developer

Available to work remotely from Argentina The job proposal At Aerolab, we build people-centered digital products with a small multidisciplinary team. That means websites, web apps, and mobile products for startups and global brands - and it means bringing technical judgment, not just code. We use AI as part of everyday work: Claude Code, internal tools, LLM features shipped for clients. We expect you to know how to use it well and to critically review what it produces. Your job responsibilities include Product Development Create and evolve digital products for startups and global brands, often across multiple projects at once. Build web and mobile apps using TypeScript, React, Next.js, React Native, and Node.js. Design and implement APIs and serverless infrastructure. Build scalable interfaces connected to headless CMS and prototype AI features (LLMs, agents, RAG) when the project calls for it. Craft & Quality Implement UIs from scratch with real attention to detail across screen sizes. Review, refactor, and test AI-generated code before it ships - that's on you, not the AI. Write and maintain tests where they genuinely add value. Document technical decisions proactively. Participate in code reviews as both reviewer and author. Collaboration & Ownership Turn ambiguous client briefs into actionable specs that you and your tools can execute. Work closely with PMs, designers, and other devs on tight timelines. Support less experienced developers, particularly around using AI with judgment. Push back in the design process when you have a better technical idea. Ability to turn a brief or a Figma file into a clear execution plan, asking the right questions before writing code. Fluent use of AI tools (Claude Code, Cursor, Copilot, or similar) in your daily workflow. You have opinions on what works and what doesn't. Judgment to review and verify code (yours or AI-generated) before it reaches production. Solid command of TypeScript, React, Next.js, and Node.js, with real experience shipping in at least two different codebases. Speed to ramp up on an unfamiliar repo and become productive quickly. Intermediate English, spoken and written. Comfort with ambiguity and context-switching between clients. Nice to have: Experience with React Native in production apps. Experience integrating LLM APIs (Anthropic, OpenAI), RAG, MCP, or agents in a real product — not just demos. Previous experience at an agency or consultancy. Integrations with headless CMS (Contentful, Sanity, Prismic, or similar). Good eye for UI, accessibility (a11y), and performance. Experience with Canvas, Three.js, or WebGL. Open source contributions or personal projects we can look at. What are you going to find at Aerolab? The opportunity to work on products of different industries, having direct contact with the client. Spaces designed to give feedback and propose improvements and changes. Aerolab is a member of SoDA, a global network of leading digital agencies Apply To This Job