19h ago
Staff Data Scientist
Hamburg
โจ $150k-$210k / yearest.
full-timesenior Hybridmedia Visa Sponsor
๐ Tech Stack
๐ผ About This Role
You'll lead the design of sophisticated targeting models and bidding optimization algorithms for a leading mobile ad platform. Your work will directly impact billions of daily predictions and drive ad revenue. You'll mentor colleagues and champion best practices in a fast-moving, innovative team.
๐ฏ What You'll Do
- Design and refine relevance models for ad targeting
- Develop and optimize bidding policies using Bayesian methods and RL
- Build meta-learning frameworks for personalized ads
- Conduct rigorous A/B testing and experimentation
๐ Requirements
- 7+ years experience with deep ML models in ad tech
- Designed bidding or LTV prediction algorithms for ad tech
- Proficient with distributed data processing tools like AWS Athena, Spark, Ray
โจ Nice to Have
- Experience with performance advertising or gaming
- Strong mathematical foundation and communication skills
- Mentoring and team collaboration experience
๐ Benefits & Perks
- ๐๏ธ 30 vacation days plus flexible working hours
- ๐ช Free gym access and mental health support through EAP
- ๐ 3 weeks remote work per year
- ๐ ๏ธ Top-notch equipment and central office with Alster Lake view
- ๐ Regular team events and hackathons
๐จ Hiring Process
Estimated timeline: 3-5 weeks ยท AI estimate
- 1Recruiter Screenยท 30 min
- 2Technical Interviewยท 60 min
- 3System Designยท 60 min
- 4Hiring Manager Interviewยท 45 min
- 5Offerยท 30 min
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