Position not open anymore
Key Responsibilities
- Own the end-to-end development and productionization of antifraud solutions, collaborating with Product Analysts and the Data Science team to ensure models and rules are effectively deployed and deliver measurable impact
- Productionize ML and rule-based antifraud models by integrating them into existing pipelines and real-time or batch decision systems
- Monitor model performance in production and iterate based on fraud patterns, false positives, and business impact
Skills, Knowledge and Expertise
- 4+ years of experience in Data Science, Machine Learning, or a similar role, with a strong focus on fraud detection or behavioral analysis
- Proven experience owning antifraud solutions end-to-end, from problem definition and modeling to production deployment and iteration beyond offline experiments
- Strong Python engineering skills, with hands-on experience writing production-oriented code for data processing, feature engineering, and model inference
- Practical experience with Python DS and ML libraries, including pandas, NumPy, scikit-learn, and gradient boosting frameworks (e.g., LightGBM or XGBoost)
- Experience working with highly imbalanced datasets and understanding fraud-specific trade-offs between precision, recall, and business impact
- Hands-on experience with model evaluation and interpretability, including tools such as SHAP or equivalent approaches
- Experience analyzing large-scale event or user-level data in batch or near–real-time environments
- Ability to independently structure complex, ambiguous antifraud problems and deliver practical, scalable, production-ready solutions
- Strong collaboration and communication skills, with experience working effectively alongside Product Analysts, engineering teams, and other Data Science practitioners
Conditions
- Stable salary, official employment
- Health insurance
- Hybrid work mode and flexible schedule
- Access to professional counseling services, including psychological, financial, and legal support
- Discount club membership
- Diverse internal training programs
- Partially or fully paid additional training courses
- All necessary work equipment