Data Scientist

Data ScientistAmsterdamFull-timeMedior-Senior (4+ YOE)€60,000 - €85,000Promptwatch sits on one of the richest datasets in AI Search: real AI responses across ChatGPT, Claude, Gemini, and Perplexity, combined with billions of crawler logs and clicks. We ingest around 2,000 events per second of crawler logs, CDN data, and clickstream data, on top of huge volumes of unstructured AI response text. As a Data Scientist, you'll turn this data into the metrics, models, and insights that define how agentic AI Search is measured and improved.This is a high-impact, hands-on role. You'll work closely with Product and Engineering to design visibility and sentiment metrics, surface trends across millions of AI answers, and build the analytical foundation that our customers and our public research rely on. Working with large amounts of unstructured data, vector search, and embeddings is at the heart of the role.What You'll Do:Design and refine metrics for brand visibility, citations, and sentiment across AI assistantsAnalyze large-scale, high-velocity datasets (~2,000 events/second of crawler logs, CDN, and clickstream data) to surface actionable trendsMake sense of large amounts of unstructured AI response text using embeddings and vector searchBuild statistical and ML models to detect patterns in how AI systems retrieve, rank, and cite contentDevelop reproducible analyses and pipelines that scale with our growing datasetProduce public-facing research and reports that establish Promptwatch as a thought leader in AI search space.Validate data quality and define methodologies that customers can trustWhat We're Looking For:4+ years experience in data science, analytics, or a quantitative research roleStrong proficiency in Python and SQL for data analysisSolid foundation in statistics, experimentation, and ML fundamentalsExperience working with large, messy, real-world datasets, including high volumes of unstructured textHands-on experience with vector search and embeddingsAbility to translate ambiguous questions into clear, measurable analysesStrong communication skills to present findings to technical and non-technical audiencesCurious and excited about AI, search, and emerging buyer behaviorFamiliarity with data warehouses and analytics tooling (e.g. BigQuery, Tinybird/ClickHouse, Elasticsearch)Nice to Have:Experience with NLP or working with LLM outputsBackground in SEO, search, or marketing analyticsExperience building data visualizations or dashboardsCompensationSalary: €60,000 - €85,000 (depending on experience)Perks: Great office location, team off-sites, company and team sports activities