Job
- Level
- Senior
- Job Field
- Data
- Employment Type
- Full Time
- Contract Type
- Permanent employment
- Location
- Dusseldorf
- Working Model
- Hybrid, Onsite
Job Summary
In this role, you will develop AI-driven search algorithms and ML models to optimize hotel searches, analyze user data, integrate semantic technologies, and support team members through mentoring.
Job Technologies
Your role in the team
- As a Data Scientist in the AI Search Team, you will play a key role in shaping how millions of travelers discover and compare hotels on our platform.
- Our team manages hotel search in over 35 languages and 55 countries, processing millions of search queries daily.
- We are building the next generation of AI-powered search that combines personalized ranking with cutting-edge semantic understanding.
- Developing & deploying algorithms: You develop scalable search architectures and machine learning models (predictive & statistical modeling, deep learning) to solve complex search and ranking challenges.
- Design Next-Gen Search: You integrate semantic search (Semantic Retrieval), Query Understanding, and Learning-to-Rank algorithms with production-ready performance.
- End-to-End ML responsibility: You drive ML solutions from concept to deployment in the production environment, ensuring robustness and scalability.
- Data-driven insights: You analyze large datasets to uncover patterns in user behavior and strategically improve search quality.
- Mentoring & Knowledge Sharing: You conduct quality checks, provide constructive feedback to less experienced Data Scientists, and share best practices across the team.
- Cross-functional collaboration: You work closely with Software Engineers, Product Managers, and other stakeholders to deliver ML systems with a global impact.
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Our expectations of you
Education
- Education: Master's degree or PhD in Computer Science, Machine Learning, Information Retrieval, NLP, Recommender Systems, or a related field.
Qualifications
- Search expertise: In-depth knowledge of semantic search technologies (Query Understanding, Embedding-based Retrieval with vector databases) and Learning-to-Rank methods.
- LLMs & Transformer: Safe handling of LLMs and Transformer architectures (BERT, T5, GPT) including fine-tuning and prompt engineering for search applications.
- Communication: The ability to explain complex technical concepts understandably to non-technical stakeholders, as well as enjoyment in mentoring colleagues.
Experience
- Experience: At least 5 years of solid professional experience in the fields of Search, Information Retrieval, NLP, Machine Learning, or Deep Learning with demonstrable product impact.
- Tech Stack: Excellent programming skills in Python and SQL, as well as practical experience with ML frameworks such as PyTorch, TensorFlow, or HuggingFace.
- Statistics & Testing: Solid statistical knowledge as well as experience in designing, conducting, and analyzing large-scale A/B tests and causal inference methods.
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What we offer
- Personal Growth: We invest in you. Benefit from personalized coaching via Nilo, workshops, conferences, free online courses, and our campus library.
- Relocation Support: Are you relocating for us? We assist you with the visa process, offer a moving package, an interest-free entry-level loan, and free language courses.
- Work-Life Balance & Flexibility: Self-determined vacation (at least 25 days), flexible working hours, and up to 2 days of home office per week. Additionally, you can work remotely from abroad (selected countries) or anywhere in Germany for up to 20 days a year.
- Family-friendly: Free access to the Heycare platform for babysitting services and a dedicated children's room on campus.
- Attractive campus (Düsseldorf): Daily canteen budget for communal lunch, free snacks and beverages, on-site gym, fitness classes, Urban Sports Club membership, and ergonomic workstations.
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Benefits
Health, Fitness & Fun
Work-Life-Integration
Topics that you deal with on the job
Job Locations
This is your employer
trivago GmbH
The trivago Hotel Relations GmbH is an independent subsidiary of the trivago N.V., founded in 2017 in Düsseldorf. The company's goal is to help hoteliers around the world be successful online and generate more direct bookings by keeping up with the latest technology trends.
Description
- Language
- English
- Company Type
- Established Company
- Working Model
- Hybrid, Onsite
- Industry
- Internet, IT, Telecommunication, Hotel and Restaurant Industry, Tourism
Senior Data Scientist - AI Search & Machine Learning
- Location
- Dusseldorf
- Working Model
- Hybrid, Onsite
- Diversity
- Open for all genders
