Research Engineer Machine Learning - Paris - London - Zurich - Warsaw H/F Mistral AI

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The team spans (shared infra & clean code) and (inside research squads). Engineers can move along the research↔production spectrum as needs or interests evolve.
As a Research Engineer - ML track, you'll build and optimise the large-scale learning systems that power our open-weight models. Working hand-in-hand with Research Scientists, you'll either join:
- Platform RE Team: Enhance the shared training framework, data pipelines and cluster tooling used by every team; or- Embedded RE Team: Sit inside a research squad (Alignment, Pre-training, Multimodal, ...) and turn fresh ideas into repeatable, scalable code.


-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 (sparsified 70 B + runs, distributed training on thousands of GPUs).-Design, implement and benchmark ML algorithms; write clear, efficient code in .-Deliver prototypes that become production-grade components for and our enterprise API.

-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.

France💰 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
UK💰 Competitive cash salary and equity🚑 Insurance🚴 Transportation: Reimburse office parking charges, or £90 per month for public transport🥎Sport: £90 per month reimbursement for gym membership🥕 Meal voucher: £200 monthly allowance for meals💰Pension plan: SmartPension (percentages are 5% Employee & 3% Employer)