Hybrid Senior Staff Research Scientist

Posted 3 weeks ago

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About the role

  • Shape scientific strategy and vision for post-training across DeepL, identifying high-leverage directions, setting technical standards and leading research initiatives in a highly dynamic, fast-paced environment
  • Build and deploy state-of-the-art reinforcement learning pipelines at scale
  • Post-train large (multi-modal) models to align them with human intent and enable general capabilities such as reasoning, pushing the boundaries of model performance, safety, and efficiency
  • Drive the entire lifecycle of research and production: from idea conception, theoretical modeling, prototyping, ablation studies, all the way to production deployment
  • Work closely with cross-functional leadership to shape the technical strategy and priorities of the foundational models research track
  • Build and foster external collaborations with academic and industrial partners
  • Set scientific and technical standards for experimentation, reproducibility, and model evaluation
  • Collaborate deeply with Engineering, ML Platform, and HPC teams to deliver robust and reliable model updates to users
  • Mentor and guide senior scientists, researchers, and engineers, fostering a culture of excellence, curiosity, and impact

Requirements

  • PhD (or equivalent experience) in Computer Science, Machine Learning, Applied Mathematics, Physics or a related field
  • 5+ years of experience in ML research, including several years leading high-impact projects with responsibilities extending across different teams
  • Strong expertise in deep reinforcement learning (RLHF/RLAIF/RLVR)
  • Hands-on experience scaling and deploying LLMs or other foundation models in real-world systems
  • Strong programming skills and experience working with large compute clusters and ML infrastructure
  • Excellent communication skills — able to clearly explain complex topics to diverse audiences
  • Track record of mentoring other scientists and setting technical long-term vision.

Benefits

  • Competitive benefits
  • Open, welcoming work culture

Job title

Senior Staff Research Scientist

Job type

Experience level

Senior

Salary

Not specified

Degree requirement

Postgraduate Degree

Location requirements

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