Requirements

Mastery of ranking models (e.g., neural ranking architectures, neural auction approaches, and cutting-edge approaches to personalization and relevance)
Expertise in bidding algorithms, multi-objective optimization, and reinforcement learning (RL) applications in advertising
Advanced knowledge of AI frameworks (e.g., TensorFlow, PyTorch) and their application to real-time decision systems
In-depth understanding of ad auctions, ad exchange platforms, and auction dynamics
Proven experience optimizing CPC, CPA, and ROAS metrics for advertisers at scale
Advanced proficiency in Python, SQL, and designing workflows for front-end tracking data
Strong foundation in probabilistic modeling, causal inference, and statistical rigor in experimental design

Nice-to-Haves

Expertise in econometrics or game theory as applied to auction and pricing strategies
Contributions to open-source AI tools or publications in top-tier machine learning conferences
Knowledge of calibration techniques (e.g., Platt scaling, isotonic regression) to ensure prediction reliability
Familiarity with transformer-based architectures or graph neural networks for complex data interactions

Work on one of the most exciting topics at Delivery Hero with significant top management attention
Drive transformative innovation in AI-powered ranking and bidding systems for digital advertising
Define and own the direction of data science models for our new adtech products to ensure they are built for our future needs
Lead the creation of advanced models and strategies that redefine auction dynamics, maximize advertiser ROI, and deliver exceptional user experiences
Elevate advertising intelligence capabilities, setting new industry benchmarks while shaping the future of data-driven decision-making at scale

Hybrid working model with face-to-face connection in Berlin campus
27 days holiday with additional days based on years of service
Support for career growth opportunities through education budget, language courses, and more
Health benefits including gym and bicycle subsidy, meditation, and more
Financial benefits such as Employee Share Purchase Plan, Sabbatical Bank, and more
Food-related perks like meal vouchers, discounts, and more