**Location:** Fully remote **Seniority:** Senior **Languages:** English context mandatory. Spanish **Service context:** International project with an agile, multidisciplinary, and distributed team dedicated to scaling AI assets and developing innovative Retrieval-Augmented Generation (RAG) products and Document Understanding solutions. The service provider will contribute at the intersection of cutting-edge LLMs, agentic architectures, and application development, delivering intuitive and responsive frontend interfaces using React and collaborating with cross-functional teams to build AI-powered applications. Expertise: Proven expertise in full stack development with React (frontend). Strong expertise of Large Language Models (LLMs), Retrieval-Augmented Generation (RAG), and related AI/ML concepts. Ability to design scalable, reliable, and maintainable software solutions. Other Qualifications: Autonomous, willing to learn, problem solving, capacity to explain and present to stakeholders Technical Expertise : REACT.js | Node.js | Docker | LangChain | Cloud: Amazon, Azure | LLMs | RAG | Python | English mandatory | Agile methodology Preferred technical skills: Hands-on expertise with LangChain Familiarity with AI model deployment and optimization.