Zendesk

Senior Machine Learning Scientist

Zendesk

full-time

Posted on:

Origin:  • 🇩🇪 Germany

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Job Level

Senior

Tech Stack

AWSDockerElasticSearchKafkaKubernetesMySQLPythonPyTorchRedisRuby

About the role

  • Research, prototype, and develop state-of-the-art NLP/ML models for use cases to drive automated resolutions for end-user issues.
  • Design and execute rigorous experiments and evaluations (offline/online, A/B) to improve model accuracy and robustness.
  • Improve prompts and hyperparameters to optimize our state-of-the-art retrieval and generative capabilities.
  • Work closely with ML Engineers to productionize ML solutions—including data pipelines, scalable model serving, and monitoring.
  • Analyze large, multi-lingual customer interaction datasets to uncover insights and power new solutions.
  • Participate in technical reviews and share knowledge of underlying ML methodologies and best practices.
  • Present your work to a multi-disciplinary, global audience.
  • Stay up to date with recent literature in Machine Learning and Natural Language Processing (NLP) and share knowledge internally.
  • Champion initiatives to improve the quality and robustness of Zendesk AI capabilities.
  • Mentor junior scientists and help grow the ML research culture.

Requirements

  • MSc degree (PhD preferred) in computer science, electrical engineering, math, or related areas.
  • Deep knowledge of ML theory, algorithms, and modern NLP/LLM techniques.
  • Demonstrated ability to conduct independent research and deliver production-grade ML solutions.
  • Strong coding skills in Python; experience with ML frameworks (preferably PyTorch).
  • Experience with large-scale experimentation (e.g., A/B testing), data analysis, and performance tracking.
  • Strong collaboration and communication abilities.
  • Be pragmatic and results oriented.
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