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# ML Engineer

- **Company:** Aristocrat
- **Location:** Barcelona, Spain
- **Contract:** Permanent contract
- **Skills:** Artificial Intelligence, Airflow, Amazon Web Services, Microsoft Azure, Big Data, Cloud Database, Python (Programming Language), Machine Learning, Recommender Systems, Tensorflow, Standard Sql, Google Cloud, Pytorch, Retrieval-Augmented Generation, Large Language Models, Snowflake, Software Application Programming, Generative AI, Agentic-AI, Scikit Learn, Information Technology, CrewAI, Xgboost, Machine Learning Operations, Streamlit Framework, Docker
- **Published:** October 6, 2026
- **Apply:** https://www.recruit.net/job/ml-engineer-jobs/E98D3262AD6CE4C9

## About the Role

* 4+ years of experience applying machine learning to real-world problems, from data to deployment.
 * Proven experience with recommender systems (collaborative filtering, ranking, or similar) applied to real products.
 * Strong Python skills and hands-on experience with ML libraries (scikit-learn, PyTorch/TensorFlow, XGBoost or similar).
 * Solid SQL expertise and experience working with large data warehouses.
 * Hands-on experience with experiment tracking and/or model registry tools (MLflow, Weights & Biases, or equivalent).
 * Experience designing or contributing to model monitoring / performance tracking in production.
 * Comfort working with cloud platforms (e.g., GCP, AWS, Azure), Docker, and Airflow.
 * A strong analytical foundation, with a background in a quantitative field (mathematics, physics, computer science, engineering) or equivalent experience.

Nice to Have

 * Experience with Snowflake or similar cloud data warehouses.
 * Hands-on experience building applications with Generative AI (LLMs), including API integration.
 * Interest or early experience in RAG systems - whether through prototypes, side projects, or professional work.
 * Interest or familiarity with agentic AI concepts or frameworks (e.g., LangChain agents, CrewAI).
 * Ability to build simple user interfaces (e.g., Streamlit) to expose ML models to wider teams.

## Description

Depending on the nature of your role, you may be required to register with the Nevada Gaming Control Board (NGCB) and/or other gaming jurisdictions in which we operate.

This job description may have been reviewed and enhanced using AI-assisted tools to improve clarity, consistency, and inclusivity. All final content, role requirements and hiring decisions remain subject to human review and approval by Aristocrat.