Open-Source Software, Machine Learning Engineer

Mistral; Paris; Sur place; EUR 90 000 - 150 000; Plein temps

Avantages offerts par ce poste

Health insurance

Equity

Transportation allowance

Sport allowance

Meal vouchers

Private pension plan

Parental leave

Visa sponsorship

Résumé du poste

Mistral AI is seeking an Open Source Software engineer to lead the release and maintenance of state-of-the-art models as open-source libraries. You will work across production and research, contributing to widely used ML libraries and tooling for a vibrant OSS ecosystem.

The role fosters collaboration with PyTorch, vLLM, and Hugging Face communities, requiring deep ML knowledge, Python expertise, and a proactive, team-oriented mindset.

Qualifications

• Master’s degree in Computer Science, ML or Data Science.
• Experience contributing to popular open-source libraries.
• Expert programming in Python and PyTorch.
• Strong MLOps and production-ready tooling.
• Autonomous, proactive and detail-oriented.
• Deep understanding of ML, especially LLMs.

Responsabilités

• Release models to open-source platforms and libraries.
• Maintain open-source libraries like mistral-common and mistral-inference.
• Create and maintain internal and external tooling.
• Implement and optimize libraries for performance and accuracy.
• Collaborate with PyTorch, vLLM and Hugging Face communities.

Connaissances

Python

PyTorch

MLOps

Open-source

Transformers

vLLM

Llama.cpp

JAX

TensorFlow

Formation

Master’s degree in Computer Science

Machine Learning

Data Science

Outils

PyTorch

Transformers

vLLM

Llama.cpp

Description du poste

About Mistral

At Mistral AI, we believe in the power of AI to simplify tasks, save time, and enhance learning and creativity. Our technology is designed to integrate seamlessly into daily working life. We democratize AI through high-performance, optimized, open-source and cutting-edge models, products and solutions. Our comprehensive AI platform is designed to meet enterprise needs, whether on-premises or in cloud environments. Our offerings include le Chat, the AI assistant for life and work. 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 France, USA, UK, Germany and Singapore. We are creative, low-ego and team-spirited. Join us to be part of a pioneering company shaping the future of AI. Together, we can make a meaningful impact. See more about our culture on https://mistral.ai/careers.

Role Summary

You will be in charge of open-sourcing state-of-the-art models, whilst maintaining and improving Mistral’s publicly available libraries. Your work is critical in helping turn research breakthroughs into tangible solutions and improve Mistral\'s open-source ecosystem.

About the Open Source Software team

Our OSS team is embedded in our Science team and works very closely with various engineering and marketing teams. All OSS team members can fluidly move on the production / research spectrum depending on where the needs are or where their interests lie.

What you will do

• Releasing our models to open-source platforms and libraries, e.g., vLLM, GitHub, Hugging Face
• Maintaining Mistral’s open-source libraries (mistral-common, mistral-finetune, mistral-inference)
• Create and maintain tooling and services: both internal facing (internal research) and external facing (open-source libraries)
• Implement and optimize open-source and internal libraries for performance and accuracy, ensuring production readiness and employing cutting-edge technology and innovative approaches
• Collaborate with the open-source community (PyTorch, vLLM, Hugging Face)

About you

• Master’s degree in Computer Science, Machine Learning, Data Science, or a related field
• Experience contributing to popular open-source libraries such as PyTorch, Tensorflow, JAX, vLLM, Transformers, Llama.cpp
• Passion for contributing to the open-source software ecosystem
• Expert programming skills in Python, PyTorch, MLOps
• Adaptable, proactive, and autonomous
• Attention to detail and a drive to go the last mile to build almost perfect tools
• Deep understanding of machine learning approaches, especially LLMs and algorithms
• Low-ego, collaborative and have a real team player mindset

Now, it would be ideal if you have:

• Experience with training and fine-tuning large language models (e.g., distillation, supervised fine-tuning, policy optimization)
• Experience working with Slurm
• Worked with research teams before
• Experience as a core-maintainer of a popular ML open-source library

By applying, you agree to our Applicant Privacy Policy.

Location & Remote

This role is primarily based at one of our European offices (Paris, France and London, UK). We will prioritize candidates who either reside there or are open to relocating. We strongly believe in the value of in-person collaboration to foster strong relationships and seamless communication within our team.

In certain specific situations, we will also consider remote candidates based in one of the countries listed in this job posting — currently France & UK. In that case, we ask all new hires to visit our local office:

• for the first week of their onboarding (accommodation and travelling covered)
• then at least 3 days per month

What we offer

• Competitive salary and equity
• Health insurance
• Transportation allowance
• Sport allowance
• Meal vouchers
• Private pension plan
• Parental: Generous parental leave policy
• Visa sponsorship

By applying, you agree to our Applicant Privacy Policy.