Fullstack Engineer | AI Start-up | 7-Month fixed-term Contract
Join a European deep-tech leader in quantum and AI.
A well-funded, fast-growing company backed by major global investors with its groundbreaking technology is already transforming AI, compressing large language models by up to 95% and cutting inference costs by 50–80%.
This is your chance to be part of a team often described as a “quantum-AI unicorn in the making.”
This is a Hybrid opportunity working out of Zaragoza.
Required Qualifications
* 2–5 years of experience across frontend and backend development.
* Proficient with React/Next.Js and TypeScript on the frontend, plus Python (FastAPI/Django) on the backend.
* Experience building data-intensive dashboards, experiment tracking UIs, or internal automation tools.
* Strong understanding of API design, data modeling, and frontend–backend integration.
* Experience with SQL databases, containerized development (Docker), and CI/CD pipelines.
* Experience with AWS or cloud-based deployment environments.
* Product-driven approach — able to collaborate with researchers and PMs to translate exploratory workflows into production-quality tools.
Preferred Qualifications
* Familiarity with LLM lifecycle and MLOps tools (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).
* Proven ability to design user experiences that simplify complex R&D processes.
* Passion for turning automation and ML research insights into polished, user-centric internal products.
Perks & Benefits:
* Compensation: Competitive salary, with a signing bonus and a retention bonus at the end of the contract.
* Flexibility: This is a hybrid role with flexible working hours. A relocation package is available if needed.
* Culture: We are a fast-scaling company committed to equal pay, diversity, and an inclusive culture. You'll gain international exposure in a multicultural, cutting-edge environment.
Interested? Apply directly through LinkedIn, or send your CV to
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