Senior Data Scientist

About the role

Cepal Hellas Financial Services S.A. is looking for a Senior Data Scientist in Athens. The role is responsible for developing and deploying predictive models, turning complex data into scalable, high-impact analytical solutions.

Required profile

• Bachelor's or Master's degree in Computer Science, Engineering, Statistics, Mathematics or another quantitative discipline.
• At least 4 years of hands-on experience in Data Science, AI, Machine Learning or Advanced Analytics.
• Proven experience designing and implementing end-to-end data science solutions for complex business problems.
• Demonstrated experience moving solutions from proof of concept to production, including testing, packaging, deployment, monitoring and continuous improvement.

Required skills

• Strong Python programming, including object-oriented design, modular code, exception handling, logging, unit testing and production-ready solutions.
• Advanced SQL and experience with large, complex datasets, including extraction, transformation, validation and query optimisation.
• Hands-on experience with Databricks, Apache Spark and PySpark.
• Knowledge of machine learning libraries such as pandas, NumPy, scikit-learn and MLflow.
• Git, version control, code reviews, CI/CD, model deployment and monitoring.
• Familiarity with AWS cloud environments is an advantage.