ML/AI Engineer in Barcelona

At Aristocrat, we are advancing gaming technology with modern, powerful solutions. Our mission is to bring happiness to life through play. We value collaboration, creativity, and a strong passion for excellence. We seek an ambitious ML/AI Engineer to join our team. You will help improve our AI capabilities and craft the future of our products. This role offers a chance to work on mature machine learning systems and pioneering AI technologies. You will make a real difference in our products and players' experiences.

What You'll Do

• Deploy machine learning models that support game features, player experience, and operational efficiency.

• Improve the code quality of others' work by refining SQL and Python scripts for data transformation, feature engineering, modelling pipelines, and AI app, thereby ensuring production readiness.

• Explore and contribute to early-stage projects involving LLMs, RAG systems, and agentic AI to power new types of automation and decision support.

• Develop or refine Streamlit-based tools (or alike) that present ML/AI capabilities to non-technical users via intuitive and interactive interfaces.

• Help build and implement model monitoring systems to ensure long-term performance and business alignment.

• Collaborate with teams across product, data, and engineering to identify where ML and AI can bring value.

• Communicate results, limitations, and recommendations clearly across technical and business collaborators.

What We're Looking For

• 5+ years of experience applying machine learning to real-world problems, from data to deployment.
• Strong Python skills and hands-on experience with ML Python libraries.
• Solid SQL expertise and experience working with large data warehouses.
• Comfort working with cloud platforms (e.g., GCP, AWS, Azure), Docker, and Airflow.
• Ability to build simple user interfaces (e.g., Streamlit) to expose ML models or AI applications to wider teams.
• 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) is a plus, but not a must.
• Curiosity, initiative, and a desire to learn and grow in a fast-evolving space.
• Degree in a relevant technical field or equivalent experience.

Why Product Madness?

As part of the Aristocrat family, we share their mission of bringing joy to life through the power of play, with a world-class team who creates top-grossing, leading titles in the social casino genre, including Heart of Vegas, Lightning Link, Cashman Casino. With 800 team members across the globe, Product Madness is headquartered in London, with offices in Barcelona, Gdańsk, Lviv, Montreal and a remote team spanning the USA, making us a truly global powerhouse.

We live by our People First principle. Regardless of where, when, or how they work, our team members have opportunities to elevate their careers, and grow alongside us. We take pride in fostering an inclusive culture, where our people are encouraged to be their very best, every day. But don’t just take our word for it. In 2024, we made the Global Inspiring Workplace Awards list, and won a bronze award at the Stevies for Great Employers in the ‘Employer of the Year - Media and Entertainment’ category.

Perks

- Health insurance - CIGNA
- Gympass gold plan
- 25 vacation days + 1 day on your birthday
- Flexible payment - daycare, transport, etc
- Pension plan 1% base salary
- Food at the office twice a week

So, what’s stopping you?

Our Values

• People First

  We have the deepest respect for our people and their well being. We know they are exceptionally talented and will always have a choice. We want them to re-choose us every day. We are committed to building a culture where each person's voice will always be heard and addressed.

• MAD for More

  Always improving, innovating and never settling for the existing. We push all boundaries with courage and ambition to become the world’s best games company.

• Champion Together
  We excel at what we do but yet remain humble and helpful to our teammates. We champion one another and hold each other to high standards without any egos.

• Globally Inclusive

  We are all Equal - regardless of the language we speak, where we live, our gender, religion or culture we come from. We want to build a global home, where everyone has the equal opportunity to make an impact.

• Customer Focused

  We always think from the customer's perspective - be it players or internal customers.

  Improving their experience and joy is what drives us. Every client's success is our big win!

Travel Expectations: None

Additional Information

At this time, we are unable to sponsor work visas for this position. Candidates must be authorized to work in the job posting location for this position on a full-time basis without the need for current or future visa sponsorship.