Data Scientist (AI & Experimentation)
pflegia
| Company | pflegia |
| Category | Data & Analytics |
| Location | Berlin |
| Remote | Remote |
| Employment | Not stated |
| Level | Not stated |
| Salary | Not stated by the employer |
| Posted | 22 Jul 2026 |
| Last verified | 12 Aug 2026 |
| Source | The employer's own careers page (company_site) |
Description
Requirements
• You love to work with data: explore it, model it, improve its quality
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• Deep grounding in statistics: you know which method fits which problem and can defend your assumptions, not just run the library defaults
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• Fluent in Python (pandas, scikit-learn, NumPy) and SQL, with a track record of applying them to real business problems rather than toy datasets
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• Hands-on experience taking ML and modern AI techniques from idea to a working solution that someone actually uses
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• Practical experience with LLMs and RAG systems in production or near-production settings, including prompting, retrieval quality, and output evaluation
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• Solid command of A/B testing: sample sizing, significance, common pitfalls, and knowing when an experiment is the wrong tool
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• Working knowledge of performance marketing concepts such as CAC, ROAS, and attribution logic
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• Project experience in at least one of: anomaly detection, trend analysis, marketing mix modeling, or multi-touch attribution
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• Background in e-commerce, marketplaces, or other platform-based businesses, ideally with exposure to supply and demand dynamics
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• Bonus: degree in mathematics, statistics, physics, computer science, or a related quantitative field
What the job involves
• We're looking for a Data Scientist who treats AI as a working tool, not a buzzword.
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• You'll sit at the intersection of statistics, machine learning, and product: building predictive models, improving our LLM- and RAG-based systems, and running experiments that directly shape how our platform matches supply and demand.
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• Your work won't end at a slide deck. You'll define the metrics, ship the analysis, and follow through until the impact shows up in the numbers
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• Build, validate, and ship statistical and predictive models that directly inform pricing, matching, and growth decisions
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• Develop and improve LLM-powered features, from retrieval-augmented generation (RAG) pipelines to applications of new AI technologies that open up product innovation
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• Own the reliability of our AI features: design prompt and evaluation workflows, measure output quality, and catch regressions before users do
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• Turn open questions into testable hypotheses and design experiments (e.g., A/B tests) that give clear, decision-ready answers
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• Dig into funnels and user journeys to find drop-offs and friction points, and quantify where supply and demand can be better matched
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• Team up with performance marketing to sharpen targeting, attribution, and campaign efficiency with data
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• Define the KPIs that matter, build the dashboards and monitoring behind them (AWS QuickSight), and make business impact visible and measurable
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• Keep your work transparent and traceable: document, prioritize, and communicate progress in Jira across product, engineering, and marketing
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• Present findings to stakeholders as concrete recommendations, then stay involved until they're implemented