> Markdown version of [/jobs/ext/3761083-llm-engineer-quantum-ai-scale-up-hybrid-visa](https://www.wearedevelopers.com/jobs/ext/3761083-llm-engineer-quantum-ai-scale-up-hybrid-visa). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md).

---

# Llm Engineer - Quantum Ai Scale-Up (Hybrid, Visa)

- **Company:** European Tech Recruit
- **Location:** Madrid, Spain
- **Contract:** Permanent contract
- **Skills:** Artificial Intelligence, Large Language Models, Deep Learning
- **Published:** October 15, 2026
- **Apply:** https://www.buscojobs.com.es/llm-engineer-quantum-ai-scale-up-hybrid-visa-en-madrid-ID-376079313

## About the Role

The ideal candidate should have a strong background in AI, experience with deep learning, and be proficient in relevant tools.This role offers an indefinite contract, full visa sponsorship, flexible hours, and private health insurance.
#J-*****-Ljbffr

## Description

European Tech Recruit is seeking a Mid/Senior LLM Engineer in Donostia/San Sebastián for a hybrid role within a leading Quantum Software scale-up.You will design and innovate techniques to improve LLMs and fine-tune Transformers for exceptional performance.The ideal candidate should have a strong background in AI, experience with deep learning, and be proficient in relevant tools.This role offers an indefinite contract, full visa sponsorship, flexible hours, and private health insurance.#J-*****-Ljbffr