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# Full Stack Developer ID63542

- **Company:** Agileengine
- **Location:** Valencia, Spain
- **Contract:** Permanent contract
- **Skills:** Adobe InDesign, Application Programming Interfaces (APIs), Artificial Intelligence, Python (Programming Language), Systems Integration, Data Processing, ReactJS, Large Language Models, Backend, Fastapi, Api Design
- **Published:** August 15, 2026
- **Apply:** https://es.trabajo.org/oferta-9000-5828f554f6d9cfd2d42e73da74f7dd71

## About the Role

and maintain React-based frontend components; - Develop and extend Python backend services, including APIs, integrations, and data processing; - Collaborate closely with product, QA, and engineering teams in overlapping EST hours; - Participate in design discussions and contribute to scalable, maintainable solutions. MUST HAVES - Commercial experience with LLMs, preferably Claude, OpenAI APIs, similar APIs, or custom model integration; - 1+ year of React experience with hooks, state management, and component-driven development; - 1+ year of Python experience in API development and backend logic; - Experience working in distributed teams with active collaboration; - Upper-intermediate English level. NICE TO HAVES - Experience with FastAPI or similar frameworks; - Exposure to AI evaluation, prompt testing, or AI quality considerations; - Prior work on data-heavy or AI-driven products. PERKS AND BENEFITS - Professional growth: Mentorship, TechTalks, and personalized growth



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