Senior Data Scientist
Summary
Senior Data Scientist builds and deploys ML models for e-commerce CTR, CVR, and RoAS prediction using PyTorch/TensorFlow and GCP Vertex AI.
At Pretius we are looking for a Senior Data Scientist to a large-scale e-commerce platform development.
Project / Role
Design and optimize ML models for CTR, CVR and RoAS prediction.
Build Deep Learning solutions combining user, product and placement signals.
Own the full ML lifecycle—from problem definition to production deployment.
Develop models for high-throughput, low-latency environments.
Collaborate with Engineering, Product and business teams.
Mentor other Data Scientists and promote best practices.
Requirements
Commercial experience with Neural Networks and Deep Learning (mandatory).
Strong knowledge of PyTorch or TensorFlow.
Excellent Python skills (Pandas, NumPy) and advanced SQL (BigQuery is a plus).
Experience building and deploying production ML models end-to-end.
Hands-on experience with GCP, especially Vertex AI and Vertex Pipelines.
Software engineering mindset (clean code, testing, CI/CD).
Experience mentoring or leading technical initiatives.
STEM degree or equivalent professional experience.
English level B2+.
Nice to have
Experience with low-latency ML systems.
Advertising, recommendation or ranking domain knowledge.
CTR/CVR modeling experience.
Knowledge of Gradient Boosted Trees.
Experience using AI-assisted coding tools.
What do we offer?
We focus on long-term relationships based on fair principles and reliability.
Co-financing of the Multisport card and Medicover private healthcare.
Modern office available.
Team bonding activities, internal courses, conferences, certifications.