Machine learning engineer

Machine Learning Engineer (Product) – Fixed-Term Contract

Location : Zaragoza (Hybrid)

Contract : Fixed-term until

June 2026

We’re looking for a

Machine Learning Engineer

to join a leading European deep-tech company at the cutting edge of

AI innovation

• . This is a chance to make real impact on next-generation

large language model (LLM) solutions that are redefining how AI is built, optimized, and deployed.

What You’ll Do

Build, optimize, and scale data pipelines for LLM training and fine-tuning.

Develop techniques for data sourcing, cleaning, validation, and enhancement.

Work cross-functionally with ML engineers and researchers to deliver production-ready, high-performance models.

Implement and test advanced compression and optimization methods for AI models.

Stay ahead of trends in LLM architectures, evaluation, and dataset curation.

What You’ll Bring

Master’s or Ph D in Computer Science, AI, Data Science, or related field — or equivalent experience.

4+ years of hands-on experience in ML or NLP (especially with LLMs).

Strong Python skills and familiarity with libraries such as Hugging Face, Pandas, and Num Py.

Experience managing large-scale datasets and distributed computing environments.

Collaborative mindset and solid understanding of modern ML development practices.

What’s on Offer

Competitive salary

(from €40,000 per annum).

Fixed-term contract until June 2026 with signing and completion bonuses.

Hybrid working model

– flexible hours with regular on-site collaboration.

Opportunity to work on

cutting-edge AI technology

within a fast-scaling, international environment.

This role offers a unique opportunity to work on

impactful AI engineering projects

while enjoying flexibility, collaboration, and exposure to world-class research and development.