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Senior Data Scientist

Athens, Attica, Greece🌐 Remote💼 Full-time🗓 2026-09-16 → 2026-09-25

Core

Design, build, and operate scalable data platforms for a global payments and financial-services leader's marketing services products, enabling campaign measurement, customer insights, reporting, and AI/ML initiatives.

Role type

Senior IC data scientist (ML engineering)

Builds

Scalable data platforms, ML pipelines, and analytics solutions for enterprise-scale marketing services

Domain

Fintech / Financial Services / Marketing Analytics

Deliverable

production ML models

Required skills

Python, SQL, Supervised Learning, Unsupervised Learning, Reinforcement Learning/Optimization, Statistical Theory, Data Manipulation, EDA, Hypothesis Testing, Gradient Boosting

Preferred skills

FastAPI, Docker, Azure, MLOps (MLflow), PyTorch, Git, UV

Technologies

pandas, polars, scikit-learn, xgboost, lightgbm, catboost, pytorch, FastAPI, Docker, Azure, MLflow, Git, UV

Responsibilities

Define business problems and translate them into data science solutions; Collect, clean, and analyze large datasets; Develop and optimize machine learning and statistical models; Build robust Supervised/Unsupervised ML pipelines; Maintain and improve existing ML solutions; Analyze messy data from various data sources; Communicate analytical findings and recommendations to stakeholders.

Seniority

Senior, hands-on IC

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