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Xsolla (USA), Inc.

Principal Staff Data Scientist

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Description

Architect advanced machine learning solutions, lead complex initiatives, improve engineering standards, mentor junior engineers, and guide teams in building scalable production-ready systems. Create, deploy, monitor, and optimize models for fraud detection, recommendations, and other large-scale applications.

Responsibilities

  • Architect advanced machine learning solutions
  • Lead complex machine learning initiatives
  • Elevate engineering standards
  • Mentor junior machine learning engineers
  • Guide teams in building scalable production-ready machine learning systems
  • Create, train, and fine-tune machine learning models
  • Deploy, monitor, detect drift in, and retrain production models

Requirements

  • Advanced degree in statistics, machine learning, or a related area
  • Statistics and machine learning expertise
  • Experience leading large-scale data science initiatives
  • Hands-on experience creating, training, and fine-tuning models
  • Production model deployment, monitoring, drift detection, and retraining experience
  • Classical machine learning experience in fraud or anomaly detection, recommendation, or churn/LTV
  • Supervised learning and transfer learning
  • Neural networks
  • Basic LLM knowledge
  • MLOps foundations including feature stores, experiment tracking, model registries, and continuous training pipelines
  • Model serving and inference optimization
  • Graph-based fraud detection experience

Benefits

  • 100% company-paid medical plans
  • 100% company-paid dental plans
  • 100% company-paid vision plans
  • Unlimited Flexible Time Off

Skills

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