Join to apply for the Senior DataScientist Reinforcement Learning –Offer intelligence (m/f/d) role at SIXT
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Join to apply for the Senior DataScientist Reinforcement Learning –Offer intelligence (m/f/d) role at SIXT
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We work at the intersection of pricing science, advanced statistics, and scalable software. You’ll build and bring in production state-of-the-art probabilistic models - like hierarchical Bayesian regression, SVI, or bandit algorithms - that power millions of pricing decisions at SIXT every day. From shaping the analytical question to deploying live models, you’ll own the full lifecycle, supported by an innovation-friendly culture and great team. If you're excited by real-world impact, rigorous methods, and turning cutting-edge ideas into production - even if you don’t tick every box - we’d love to hear from you!
YOUR ROLE AT SIXT
* You architect and prototype advanced regression models (linear, GLM, mixed-effects, Gaussian Process) with a principled Bayesian approach, guiding pricing strategy at scale
* You apply techniques like SVI, MCMC, and importance sampling to enable robust decision-making under uncertainty, even with sparse, high-volume, or streaming data
* You build and maintain reproducible pipelines for feature engineering, label generation, and automated data validation using tools like Airflow or Dagster, ensuring high code quality and reliability
* You deploy models via FastAPI, Docker, or Kubeflow, and establish real-time monitoring with Bayesian control charts and performance dashboards to catch drift and anomalies early
* You design sophisticated A/B and multivariate tests, apply quasi-experimental and causal impact methods, and quantify the value of information to balance exploration and exploitation
* You collaborate with product and revenue leaders to translate ambiguous ideas into testable hypotheses, while mentoring peers and elevating Bayesian practice through internal publications and workshops
YOUR SKILLS MATTER
* Expertise Youbring deep statistical chops, with 5+ years of applying regression, hierarchical models, or state-space methods in production
* Computing proficiency Youhave a well-stocked Bayesian toolbelt -fluent in PyMC, Stan, NumPyro, TFP, or similar - and are comfortable writing custom likelihoods and priors.
* Modeling Youhave proven experience scaling inference using SVI, black-box VI, or advanced MCMC techniques on large datasets
* Engineering practices Youwrite solid, production-grade Python code and are familiar with type hints, testing frameworks, and CI/CD workflows
* Infrastructure Youare hands-on with cloud platforms like AWS, GCP, or Azure, and have experience with containerization (Docker/K8s) and workflow orchestration
* Stakeholder management Youcommunicate uncertainty, lift, and risk in plain English for executives, while engaging deeply with scientists and engineers
WHAT WE OFFER
* Extra benefits Enjoy discounts on SIXT rent, share, ride and SIXT+, attractive vehicle leasing offers, and exclusive deals with partners for travel, tech, fashion and more
* Mobility boost We support you with a monthly mobility allowance of €20 per month for even more freedom
* Future security We contribute to your retirement plan and support you with capital-forming benefits to ensure you are well covered
* Feel-good atmosphere Stay active with our modern SIXT gym, various leisure activities like the gaming area or the SIXT choir, and enjoy our high-quality employee restaurant
* Flexibility Enjoy 30 days of vacation and a hybrid working model with flexible hours
* Giving back Take one day each year to volunteer at a charitable organization dedicated to supporting children
About us:
We are a globally leading mobility service provider with a revenue of €4.00 billion and around 9,000 employees worldwide. Our mobility platform ONE combines our products SIXT rent (car rental), SIXT share (car sharing), SIXT ride (taxi, ride, and chauffeur services), and SIXT+ (car subscription), giving our customers access to our fleet of 350,000 vehicles, the services of 4,000 cooperation partners, and around 5 million drivers worldwide. Together with our franchise partners, we are present in more than 110 countries at 2,000 rental stations. At SIXT, top-tier customer experience and outstanding customer service are our highest priorities. We believe in true entrepreneurship and long-term stability and align our corporate strategy with foresight. Get started with us and apply now!
Seniority level
* Seniority level
Mid-Senior level
Employment type
* Employment type
Full-time
Job function
* Job function
Engineering and Information Technology
* Industries
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