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PayPal Senior Machine Learning Engineer 
France, Ile-de-France 
794704950

29.05.2025

Responsibilities
  • Model Development: Design and implement core decision models for identity, onboarding, authentication, abuse, scam, product-specific models.
  • Anomaly Detection: Develop and refine algorithms for detecting anomalies and identifying potential fraud patterns.
  • Supervised Learning: Apply supervised learning techniques to build predictive models that accurately identify fraudulent activities.
  • Continual Learning: Utilize continual learning methods to continuously improve model performance and adapt to new fraud tactics.
  • Collaboration: Work closely with cross-functional teams, including tech, operations, and product teams, to integrate fraud prediction models into various systems and processes.
  • Experimentation and Analysis: Conduct experiments, analyze results, and interpret findings to drive innovation and enhance decision-making processes.
  • Data Integrity: Ensure data integrity and consistency by working closely with business stakeholders and engineers to address critical data challenges.
  • Advocacy: Promote and maintain a data-driven culture by engaging with diverse internal teams and advocating for best practices in data science and fraud prevention.
Requirements
  • Education : Master's degree or PhD in Computer Science, Statistics, Data Science, Machine Learning, Artificial Intelligence, or a related quantitative field (STEM).
  • Experience : 5+ years of experience within Data Science, ML Engineering, or AI Research roles, with demonstrated expertise in building and deploying real-world predictive models.
  • Skills : Strong understanding of anomaly detection, supervised learning techniques, and experiential learning methods. Experience in fraud prevention is a plus.
  • Communication : Strong interpersonal, written, and verbal communication skills, with experience collaborating across multiple business functions.
Preferred Qualifications
  • Expertise : Familiarity with decision models for identity and authentication.
  • Domain Knowledge : Experience in fraud prevention and detection.
  • Instrumentation : Experience driving data instrumentation for experimentation and large-scale data collection.
  • Real-time Systems : Familiarity with building systems that incorporate real-time feedback and continuous learning.
  • Advanced Techniques : Knowledge of reinforcement learning, contextual bandits, sequence models, optimization, or graph mining.

Travel Percent:

The total compensation for this practice may include an annual performance bonus (or other incentive compensation, as applicable), equity, and medical, dental, vision, and other benefits. For more information, visit .

The US national annual pay range for this role is $159,500 to $236,500


Our Benefits:

Any general requests for consideration of your skills, please