Data Scientist

Our Area focuses on creating the best digital experience through a top-notch content platform, intuitive navigation, and powerful search. Your work will impact global websites, apps, and internal tools used by millions of customers and colleagues. As a Data Scientist, you’ll also play a key role in ensuring compliance through company’s AI Way of Working, guiding the team through stage-gates and governance processes.

Responsibilities

· Develop and train machine learning models for semantic search and personalization.

· Fine-tune and evaluate embedding models and hybrid retrieval logic in Elasticsearch for search solutions.

· Research and implement LLM-based techniques for summarization, metadata generation and other use cases.

· Translate business questions into actionable data products and insights.

· Create clear dashboards and compelling storytelling to communicate insights and teach the team how to do this.

· Collaborate closely with developers, Scrum Master, and Product Owner to scale solutions effectively.

· Support compliance processes (Privacy Impact Assessments, model development plans) within the AI Way of Working.

· Monitor and improve model performance and explainability.

Must-Have Qualifications

· 3+ years of experience in machine learning and NLP.

· Expertise in information retrieval (semantic search, embeddings), and LLM integration.

· Familiarity with Elasticsearch and hybrid search architectures.

· Strong communication skills to explain complex concepts clearly.

· Ability to balance innovation with compliance and governance requirements.

· Knowledge of common evaluation methods and metrics (nDCG, MAP, MRR).

· Expertise in Python and working in (Databricks) notebooks.

Nice-to-Haves

· Experience with explainability and monitoring of ML models

· Knowledge of CI/CD and software development best practices

· Dashboarding and storytelling for insights

· Affinity with agile working and multidisciplinary collaboration

· Some familiarity with Java is appreciated

• A 12-month assignment with the possibility of extension.
• Working hours can be between 36 and 40 hours per week.
• Hybrid working model: 1 to 2 days per week onsite, including 1 mandatory team day.
• A maximum all-in annual salary of €90,000 based on a 40-hour work week (including 13th month and holiday allowance).
• Opportunity to work within a large-scale, technology-driven enterprise environment.
• The chance to shape and improve the quality strategy for mobile applications used by millions of customers.
• A collaborative, agile, and innovation-focused work environment.
• Inclusive and diverse workplace culture.
• Competitive employment conditions through a detachment/contract employment structure (ZZP/freelance contractors are not eligible for this assignment).