Senior ML Engineer — Personalization & Generative AI

GamblingCareers.com; Barcelona; Híbrido; EUR 70.000 - 90.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

Hybrid work in Barcelona

Bonus opportunities

Health insurance

Descripción de la vacante

Product Madness in Barcelona is seeking a Senior ML Engineer to design and deploy production ML and AI systems that personalize and optimize player experiences. You will build, train, and evaluate models for prediction, recommendation, and decision support, and integrate LLM-powered tools and RAG workflows into practical software components.

You will collaborate with Data Scientists, MLOps Engineers, and product partners to drive data-driven intelligence across internal platforms, while

Formación

• Expert-level Python programming and software development practices.
• Hands-on ML experience with supervised learning using scikit-learn, PyTorch, TensorFlow, or similar.
• Practical experience building LLM-based applications, RAG, and agent workflows.
• Experience in crafting ML evaluation pipelines and ensuring AI output quality.
• Strong SQL skills and data integration capabilities.
• Production ML experience including deployment, monitoring, and lifecycle management.
• Familiarity with cloud platforms (GCP, AWS, Azure) and CI/CD.
• Ability to optimize inference latency and resource usage.

Responsabilidades

• Develop production ML solutions: build, train, evaluate, and optimize models for prediction, recommendation, and decision support.
• Build AI applications: create LLM-powered apps, RAG systems, and agentic workflows for internal tools.
• Develop end-to-end software components, services, and APIs with robust testing and maintainable code.
• Analyze ML/AI systems to validate quality and robustness and identify failure modes.
• Collaborate with Data Scientists, MLOps, Data Engineers, and product partners to translate needs into data-driven solutions.
• Contribute to architecture discussions and raise engineering standards and practices.

Conocimientos

Python programming

Software development practices

Automated testing

Version control

Collaboration

ML frameworks

LLM applications

Model evaluation

ML specialization

AI specialization

SQL

Model deployment

Cloud & CI/CD

Performance optimization

Descripción del empleo

Product Madness in Barcelona is seeking a Senior ML Engineer to design and deploy production ML and AI systems that personalize and optimize player experiences. You will build, train, and evaluate models for prediction, recommendation, and decision support, and integrate LLM-powered tools and RAG workflows into practical software components.

You will collaborate with Data Scientists, MLOps Engineers, and product partners to drive data-driven intelligence across internal platforms, while