Research Engineer, Machine Learning

mistral.ai· Science
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📍 London📍 Paris📍 Warsaw📍 ZurichFullTime

About this role

About Mistral

Mistral provides full-stack AI solutions: from frontier models to developer tools, applications, and compute. We partner with enterprises tackling the hardest problems across high-stakes industries like finance, manufacturing, defense, healthcare, and the public sector, co-creating customized AI systems that they can run on their terms.

We are a dynamic, collaborative team passionate about AI and its potential to transform society. Our diverse workforce thrives in competitive environments and is committed to driving innovation. Our teams are distributed between Europe, North America, Asia and the Middle East. We are creative, low-ego and team-spirited.

About the Research Engineering team

 

The team spans Platform (shared infra & clean code) and Embedded (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, Safety …) and turn fresh ideas into repeatable, scalable code.

 
 

What You Will Do

 

• 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.

• Design, implement and benchmark ML algorithms; write clear, efficient code in Python.

• Deliver prototypes that become production-grade components for Vibe and our enterprise API.

 

What We're Looking For

 

• 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.

 

What We Offer

We offer a comprehensive benefits package designed to support your well-being, growth, and work-life balance. Benefits vary by country and may include healthcare coverage, parental leave, retirement plans, relocation support, wellness programs, meal and transportation allowances, and other location-specific perks.

For the most up-to-date details on benefits available in your location, please refer to our Benefits page.

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Frequently Asked Questions

Is the salary disclosed for the Research Engineer, Machine Learning position at mistral.ai?
The salary for this Research Engineer, Machine Learning role at mistral.ai is not publicly listed. Click "Apply Now" to learn more about the compensation package on their official careers page.
Where is the Research Engineer, Machine Learning position at mistral.ai located?
This Research Engineer, Machine Learning role at mistral.ai is based in London, Paris, Warsaw, Zurich. The position is listed as on-site or hybrid. Check the full job description or apply directly to confirm the work arrangement.
Is the Research Engineer, Machine Learning role at mistral.ai full-time or part-time?
This is listed as a FullTime position. It is posted as a Research Engineer, Machine Learning role in the Science department at mistral.ai.
Which team or department does the Research Engineer, Machine Learning at mistral.ai belong to?
This Research Engineer, Machine Learning position is part of the Science department at mistral.ai. See the full job description for more information about the team structure and responsibilities.
How do I apply for the Research Engineer, Machine Learning position at mistral.ai?
Click the "Apply Now" button on this page. You will be redirected to mistral.ai's official application portal hosted on ashby where you can submit your application directly.
When was the Research Engineer, Machine Learning job at mistral.ai posted?
This Research Engineer, Machine Learning position at mistral.ai was posted on Jul 2, 2026. Apply as soon as possible — early applications are often reviewed first.
Research Engineer, Machine Learning
mistral.ai
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You'll be redirected to mistral.ai's official application page on Ashby ATS.