Jobs in Alicante, Brasil

Full Stack Engineer (Python, React, AI / ML / LLM / SDK) – Cutting-Edge Series B scale up

Location: Remote EU – Spain

Salary: 70K Euros - 100K Euros

We are seeking a Full Stack Engineer with a proven track record in building and scaling applications powered by Large Language Models (LLMs). This role requires deep expertise in Python, React, and modern AI / ML development, including LLM frameworks, SDKs, and retrieval-augmented generation (RAG) systems.

• Design and develop scalable full-stack solutions involving both frontend (React / TypeScript) and backend (Python / Java).
• Build and optimize AI / ML pipelines leveraging LLMs and RAG architectures.
• Develop SDKs and APIs to support AI-driven applications in resource-constrained or production‑grade environments.
• Collaborate across engineering, product, and research teams to drive innovation in AI / ML‑based products.
• Ensure high performance, testability, and reliability across the stack.

• Strong proficiency in Python and React / TypeScript; experience with Java is a plus.
• Hands‑on experience building and deploying LLM-based systems (e.g., OpenAI, Hugging Face Transformers, LangChain, etc.).
• Deep understanding of AI application architecture, including RAG systems, vector databases, prompt engineering, and fine‑tuning.
• Experience with ML model serving, SDK development, and working in production‑grade environments.
• Ability to work across the full stack and thrive in a fast‑paced, collaborative environment.
• Product‑focused engineer.

• The chance to work with cutting‑edge hardware technologies in a high‑growth environment.
• A collaborative team culture that values innovation and technical excellence.
• Competitive salary and benefits package.