Staff Data Scientist Reinforcement Learning – Offer Intelligence (m/f/d)
SIXT · Posted Nov 10, 2026
- Lisbon, Lisbon District, Portugal
- Hybrid
- Staff
- 5+ years
Lead the design, development, and deployment of advanced Bayesian and reinforcement learning models to power pricing and offer personalization at SIXT.
Responsibilities
- Architect and prototype advanced regression models with Bayesian approach
- Design and productionise personalisation and recommendation systems
- Apply SVI, MCMC, importance sampling for robust decision-making
- Build reproducible pipelines for feature engineering and automated validation
- Deploy models via FastAPI, Docker, or Kubeflow and monitor real-time performance
Requirements
- Nice to have: Recommender systems
- Nice to have: Two-tower retrieval
- Nice to have: Embedding-based candidate generation
- Nice to have: Learning-to-rank
- Nice to have: Sequential models