Ubisoft

Senior Machine Learning Engineer (W/M/X)

Ubisoft
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27 days ago
Saint-Mandé, FranceSenior

Responsibilities

  • Design, train, deploy, and monitor machine learning models for player safety and security use cases.
  • Adapt state-of-the-art deep learning, NLP, and graph-learning research to production constraints.
  • Own projects end to end by working with stakeholders, defining success metrics, monitoring live systems, and iterating.
  • Write, optimize, test, and ship high-quality Python code at scale using MLOps practices.
  • Deliver models and prediction pipelines to internal or public cloud infrastructure in collaboration with data and software engineers.

Requirements

  • Strong Python software engineering skills, including clean code, testing, documentation, and CI/CD.
  • Proven experience deploying and monitoring production machine learning models, including model serving and drift monitoring.
  • Hands-on experience with NLP and LLMs, such as fine-tuning transformer models, prompt engineering, RAG, or LLM-based pipelines.
  • Experience with graph-based machine learning, anomaly detection, or fraud and trust-and-safety systems is required or strongly preferred.
  • Experience with distributed data processing using Spark and cloud data platforms.
  • Familiarity with Databricks, DAB, Delta Live Tables, or Azure-specific services is preferred.
  • Strong English communication skills for presentations, cross-team collaboration, and reporting.
  • Experience with token classification, NER, sequence labelling, GNN training, node classification, link prediction, or graph construction pipelines is preferred.

Benefits

  • Profit sharing and a yearly company saving plan.
  • 25 paid time off days plus 12 additional paid days off.
  • 50% reimbursement of the transportation pass and €9-per-day lunch vouchers.
  • Healthcare coverage for the employee and family.
  • 20 weeks of maternity leave and 7 weeks of paternity/co-parental leave.
  • Gym available in the building and additional Ubisoft perks.
  • Permanent, office-based role in Saint-Mandé near Saint-Mandé Metro station.

Tech Stack

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Ubisoft

About Ubisoft

10,000+ employees

Ubisoft develops and publishes video games for console, PC, and mobile players worldwide, monetized through premium titles, downloadable content, live services, and the Ubisoft+ subscription. Founded in 1986 and headquartered in Saint-Mandé, France, it operates studios globally and is publicly traded on Euronext Paris. Franchises include Assassin’s Creed, Far Cry, Tom Clancy’s Rainbow Six, and Just Dance.

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