About this role
About SIXT & Our Data Science Team
Join our team of data science and machine learning experts to shape next-generation pricing strategies. We combine cutting-edge techniques—like price elasticity modeling, bid price strategies, and advanced ML—to optimize pricing decisions for millions of customers. Our work directly drives efficient revenue management processes and enhances the user experience.
We’re looking for a Senior Data Scientist – Operations Research with a strong background in mathematical optimization, machine learning and related fields with both a solid theoretical foundation as well as a proven track record successfully applying these methods in a practical setting. The ideal candidate will also have revenue management expertise, for example hands-on experience in dynamic pricing and bid price optimization, and have worked in (or closely with) the airline or car rental industry.
YOUR ROLE AT SIXT
You Revenue Management & Price Optimization Design, develop, and deploy advanced revenue management systems focusing on dynamic pricing and bid price optimization strategies
You Operations Research Modeling Formulate and solve complex optimization problems (linear, nonlinear, dynamic, stochastic) to maximize revenue and support key decision-making processes
You Demand Forecasting & Customer Willingness-to-Pay Create and refine forecasting models using time series and machine learning methods to capture customer demand and willingness-to-pay
You Algorithm & Tool Development Build and maintain robust algorithms that integrate seamlessly with production systems, ensuring efficiency and scalability
You Cross-Functional Collaboration Work closely with product managers, data engineers, and software developers to deploy end-to-end solutions and continuously improve analytical models
You Thought Leadership Stay current on the latest research in revenue management, operations research, and machine learning. Provide mentorship and guidance to junior team members
YOUR SKILLS MATTER
Experience 5+ years in data science and operations research roles, ideally in car rental, airlines, or similar travel and hospitality sectors
Technical Background Strong background in mathematical optimization (linear, nonlinear, integer programming), solvers, and algorithm design including dynamic and stochastic programming
Knowledge Poficient in demand forecasting, time series modeling, and modern ML techniques, especially regression
Tools & Systems Expertise in Python for data analysis, modeling, and production deployment, and are familiar with version control systems such as Git
Analytical Mindset Able to translate complex business problems into actionable analytical tasks and communicate findings clearly to a variety of audiences
Education Master's degree or higher in Operations Research, Applied Mathematics, Statistics, or a related quantitative field — experience with revenue management systems, pricing strategies, and bid price optimization is a strong plus
WHAT WE OFFER
A Global Tech Hub in Lisbon Join a thriving international tech community and work alongside engineers, product experts, and business teams who turn ideas into real impact. Our hubs at Factory Lisboa in Beato and ARTs Lisboa in Parque das Nações are where great tech gets built
Learning & Knowledge Exchange Level up through regular events with internal and external speakers. We value curiosity, continuous learning, and open exchange – across teams, disciplines, and borders
Flexible Work Setup Two office days a week, flexible hours, and modern spaces built for both deep focus and team collaboration – work the way that brings out your best
Time Off & Wellbeing Enjoy 28 vacation days per year, an additional day off on your birthday, one volunteer day annually, and private health insurance that also covers your spouse and children free of charge
Practical Everyday Benefits Get a yearly Coverflex allowance and a daily meal allowance to make everyday life a little easier
SIXT Perks Get exclusive rates on all SIXT services, with special discounts extended to your family and friends. Because great perks are even better when you can share them
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!