Eurowings

Data Scientist (all genders)

Eurowings Köln, NW, DE
Full-time Posted about 2 months ago

Responsibilities

  • check_circle Design, develop, and deploy machine learning and AI solutions that solve commercial problems across pricing, demand, and revenue optimization
  • check_circle Own model quality end-to-end — monitor performance, improve accuracy, ensure explainability, and quantify business impact throughout the model lifecycle
  • check_circle Collaborate with Business Analysts, Data Engineers, Revenue Management, and Subject Matter Experts to deliver production-grade data products
  • check_circle Identify opportunities where emerging techniques (GenAI, advanced forecasting, optimization) can create measurable business value — and build them

Basic qualifications

  • University degree (preferably Master's) in Economics, Computer Science, or a STEM-related field
  • 4–5 years of professional experience as a Data Scientist or ML Engineer
  • Solid understanding of Python, SQL (complex joins, window functions), and core data science libraries (Pandas, Scikit-learn, Matplotlib, XGBoost)
  • Proficiency with Databricks or similar lakehouse/notebook platforms
  • Familiarity with BI tools such as Power BI or Tableau
  • Ability to select and justify modeling approaches based on data characteristics, business constraints, and interpretability requirements
  • Understanding of model performance trade-offs (e.g., precision vs. recall) and hyperparameter tuning
  • Experience with feature engineering, data cleaning, and managing data leakage and overfitting
  • Experience with constrained optimization models
  • Experience building RAG pipelines or integrating LLMs into production workflows (prompt engineering, evaluation, orchestration)
  • At least 2–3 years of experience with MLOps practices and experiment tracking (e.g., MLflow)
  • Experience working with at least one cloud platform (AWS, GCP, or Azure)
  • Strong ability to communicate complex findings to non-technical stakeholders
  • Strong analytical thinking with a commercial mindset — able to start from a blank canvas and create measurable value
  • Curiosity to dig into unfamiliar business domains and ask "why" before jumping to modeling
  • A bias toward pragmatic solutions — shipping an 80% model fast over perfecting one in isolation
  • Comfort navigating ambiguity — translating vague business problems into structured analytical approaches
  • Ownership of data quality — you question the data before trusting the output
  • Ability to manage competing stakeholder priorities and align on what's worth solving
  • Self-direction — you don't wait for a ticket to identify and pursue high-impact work
  • Willingness to challenge assumptions, including your own
  • Working knowledge of Kubernetes and Docker
  • Experience with APIs (web services)
  • Familiarity with stream processing frameworks (e.g., Kafka)
  • Experience designing and analyzing A/B tests
  • Knowledge of version control (Git)
  • Experience building end to end AI applications

About the company

We are dreamers, doers, and enthusiasts!

Our mission is to enable our customers on leisure and/or business travel to enjoy a seamless travel booking experience from the tip of their fingers. Therefore, we are continuously working passionately on providing diverse and attractive offers on our online booking platforms Eurowings & Eurowings Holidays and mobile Apps to empower our customers with relevant information and smart digital services throughout their travel experience.

Tags & Focus Areas

Fulltime Ai Machine Learning Data Science Data Engineer

About Eurowings