Research Engineer, Machine Learning

Mistral AI
hybrid senior full-time Paris
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First indexed 10 Mar 2026

Description

About the Role ================

We are seeking a Research Engineer to join our Machine Learning team. As a Research Engineer, you will work on building and optimizing large-scale learning systems that power our open-weight models.

Responsibilities ---------------

  • Accelerate researchers by taking on the heavy parts of large-scale ML pipelines and building robust tools.
  • Interface cutting-edge research with production: integrate checkpoints, streamline evaluation, and expose APIs.
  • Conduct experiments on the latest deep-learning techniques.
  • Design, implement and benchmark ML algorithms; write clear, efficient code in Python.
  • Deliver prototypes that become production-grade components for Le Chat and our enterprise API.

Requirements ------------

  • Master's or PhD in Computer Science (or equivalent proven track record).
  • 4 + years working on large-scale ML codebases.
  • Hands-on with PyTorch, JAX or TensorFlow; comfortable with distributed training (DeepSpeed / FSDP / SLURM / K8s).
  • Experience in deep learning, NLP or LLMs; bonus for CUDA or data-pipeline chops.
  • Strong software-design instincts: testing, code review, CI/CD.
  • Self-starter, low-ego, collaborative.

Benefits -------

  • Competitive cash salary and equity
  • Food: Daily lunch vouchers
  • Sport: Monthly contribution to a Gympass subscription
  • Transportation: Monthly contribution to a mobility pass
  • Health: Full health insurance for you and your family
  • Parental: Generous parental leave policy
  • Visa sponsorship
This listing is enriched and indexed by YubHub. To apply, use the employer's original posting: https://jobs.lever.co/mistral/07447e1d-7900-46d4-b61b-186f2f76847f