Python Machine Learning Engineer (Behavioral Analytics)

Junior
Warsaw, Remote / Flexible
Machine Learning
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About the Role

Join us to design real-time fraud detection pipelines leveraging behavioral ML. You’ll work on keystroke dynamics, device entropy, and adversarial robustness in production-grade systems.

Responsibilities

  • Build ML pipelines for fraud detection and session scoring.
  • Engineer features for keystroke dynamics, device entropy, timing.
  • Train/evaluate Random Forest, XGBoost, LightGBM with adversarial robustness.
  • Keep FPR <3%, deliver explainable outputs via REST API.
  • Monitor ML models continuously with signed deployment artifacts.

Requirements

  • Strong Python ML skills (scikit-learn, XGBoost, LightGBM).
  • Knowledge of adversarial ML, explainability, real-time scoring.
  • Experience with containerized ML deployment.
  • Bonus: cybersecurity/fraud detection background.
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