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Moss | Spend smarter

Senior Data Scientist – f/m/d

Moss | Spend smarter

Senior Data Scientist overseeing LLM/ML pipelines in a FinTech startup. Collaborating with teams to improve product workflows and drive meaningful outcomes across various tasks.

Posted 7/2/2026full-timeBerlin • 🇩🇪 GermanySeniorWebsite

Tech Stack

Tools & technologies
PythonPyTorchScikit-Learn

About the role

Key responsibilities & impact
  • Own LLM/ML pipelines for extraction, classification, anomaly detection, and recommendations.
  • Define evaluation & monitoring: gold sets, automated tests, robustness checks, SLAs, and cost/latency tracking.
  • Productionize with Platform/Data Eng: bring your models live and iterate/improve until they are adopted by your stakeholders.

Requirements

What you’ll need
  • 5-10+ years in applied ML with production ownership of shipping models/systems.
  • Hands-on LLM app/agent experience (tool use/function calling, RAG, structured outputs, guardrails) in production.
  • Strong Python + ML stack (e.g., scikit-learn, XGBoost/LightGBM, PyTorch/TF) and solid experiment/evaluation skills.
  • Strategic Problem Solver: You approach ambiguous problems by deeply understanding business context and framing data science solutions that drive meaningful outcomes. You rigorously validate assumptions, identify root causes, and prioritize solving the right problem before building.
  • End-to-End Executor: You independently own projects from ideation to production, balancing model performance with engineering realities. You ensure solutions are scalable, monitored, and maintained with thoughtful evaluation, deployment, and iteration strategies

Benefits

Comp & perks
  • Top-of-market compensation package, including equity.
  • Our vibrant offices are at the heart of our culture, where in-person time fuels collaboration and connection over weekly breakfasts and Friday demos.
  • Additional benefits include: 20 days “work from abroad”, 600EUR/GBP Learning & Development Budget, and other local benefits.

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools
Machine LearningModel EvaluationAnomaly DetectionClassificationRecommendationsExperimentationRobustness ChecksCost TrackingLatency TrackingAutomated Testing
Soft Skills
Strategic Problem SolverEnd-to-End ExecutionIndependent Project Ownership