Full Stack Engineer

Full-Stack Engineer - Quantum / AI - (Fixed-term contract) - based in Zaragoza, Spain

We are recruiting for a fast-growing European deep-tech company working at the cutting edge of quantum technologies and AI. They’re backed by major investors and are developing technology that makes AI models faster, more efficient, and significantly cheaper to run.

What You’ll Bring: 2–5 years of experience working across both frontend and backend development. Strong proficiency with React/Next.js and TypeScript, plus backend experience with Python (FastAPI/Django). Hands-on experience building data-intensive dashboards, experiment-tracking interfaces, or internal automation tools. Solid understanding of API design, data modeling, and seamless frontend–backend integration. Experience working with SQL databases, Docker, and CI/CD pipelines. Familiarity with cloud deployment, ideally AWS. A product-oriented mindset — comfortable collaborating with researchers, engineers, and PMs to turn exploratory workflows into production-grade tools.

Nice to Have: Knowledge of the LLM lifecycle and modern MLOps tooling (Hugging Face, Flyte, MLflow, LangChain). Experience with data visualization libraries (Plotly, Recharts, D3.js). Understanding of workflow orchestration or background-job systems (Celery, Argo, Flyte). Ability to design intuitive UIs that make complex R&D processes simple and efficient. Passion for transforming automation ideas and ML research insights into polished internal products.

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