About Extia 🌟At Extia, we live by a simple motto: "First Who, Then What."We believe that when you put the right people in the right room, magic happens. As a Great Place to Work® champion, we prioritize your professional happiness and growth.We are looking for a Fullstack AI Engineer to join our Barcelona hub. Whether you prefer the Mediterranean breeze 🏖️ or the comfort of your home office anywhere in Spain 🏠, we want your talent!The Challenge 🚀We aren't just looking for someone to "prompt" an API. We need a builder. You will be the bridge between complex AI models and sleek, user-centric applications. You'll have the autonomy to choose the best tools for the job and the support of a global community of experts.Who You Are ✨A Problem Solver: You don't just see bugs; you see puzzles. Fullstack Savvy: You’re equally comfortable tweaking a CSS flexbox as you are optimizing a model's inference speed. Continuous Learner: The AI world moves fast; you move faster. Team Player: You believe that "Great" is a team sport. Your Mission 🎯Architect & Build: Develop end-to-end AI applications from scratch—from data layers to the final UI. LLM Magic: Fine-tune models and build advanced RAG pipelines using LangChain or LlamaIndex. Scalable Code: Write clean, performant code in Python and TypeScript that can handle real-world traffic. Deploy & Fly: Take ownership of the deployment cycle using Docker and modern CI/CD practices. Collaborate: Share your "secret sauce" with our internal tech communities (The Comets!).Your Tech Toolkit 🛠️Languages: Python (FastAPI/Flask) & TypeScript (React/Next.js). AI/ML: Hugging Face, OpenAI, LangChain, and Vector Databases (Chroma, Pinecone). Data: SQL/NoSQL and building efficient data pipelines. DevOps: Docker, Kubernetes, and Cloud providers (AWS/Azure/GCP). Total Flexibility: Full Remote (within Spain) or a cool office in Barcelona. 📍🌍Ready to join the "Great Place to Work"? Click apply and let’s see if our "Who" matches yours! 🚀✨