--- title: 'AI Scientist Intern - (Internship, Masters or Phd) at Mistral' canonical: 'https://feeny.ai/job/ai-scientist-intern-internship-masters-or-phd-mistral-paris-43jzbe0kx4mv' type: 'job' last_seen: '2026-11-08' --- # AI Scientist Intern - (Internship, Masters or Phd) at Mistral - **Company:** [Mistral](https://feeny.ai/companies/mistral) - **Location:** Paris, France - **Employment:** internship - **Work type:** hybrid - **Posted:** 2026-11-06 - **Last confirmed live:** 2026-11-08 - **Apply:** https://jobs.ashbyhq.com/mistral.ai/f7245b49-92a0-4111-bba1-343183de7d97 ## Job description ## 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 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. Mistral AI are hiring experts in the role of pre-training and fine-tuning large language models. ## Role Summary -You will be working with the fine tuning team on making state-of-the-art generative models. -You will run autonomous work streams under the supervision of experienced scientists. -The role is based in one of our offices in Paris, London, Zurich or Warsaw. -Internship duration : 6 months. We will only consider candidates looking for end of studies internships (Master or Phd) ## What you will do -Explore state-of-the-art LLM algorithms for fine tuning LLMs, with the supervision of top level scientists. -Assist in the design and implementation of machine learning models and algorithms. -Conduct research on the latest advancements in natural language processing and LLMs. -Contribute to the development and optimization of our LLM systems. -Collaborate with cross-functional teams to integrate LLM technologies into various applications. -Perform data analysis and visualization to support research and development efforts. -Document research findings and contribute to technical reports and publications. -Participate in team meetings and brainstorming sessions to share ideas and insights ## About you -Currently doing a Master or PhD at a tier 1 engineering schools / Universities. -High scientific understanding of the field of generative AI. -Broad knowledge of the field of AI, and specific knowledge or interest in fine-tuning and using language models for applications. -Strong programming skills in Python, with experience in libraries such as TensorFlow, PyTorch, or similar. -Familiarity with natural language processing techniques and machine learning algorithms. -Design complex software and make them usable in production. -Navigate the full MLOps technical stack, with a focus on architecture development and model evaluation and usage. -Previous experience with LLMs or related technologies. -Knowledge of deep learning frameworks and techniques..Experience with version control systems (e.g., Git) and linux shell environment. Now, it would be ideal if you : -Have experience in fine tuning LLMs. -Have used complex HPC infrastructure with full autonomy. ## 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](https://app.notion.com/p/mistralai/Benefits-at-Mistral-36e6ba59a7fe836b93dd01737fcc27ef?source=copy_link). Privacy Policy Your privacy matters to us. You can learn more about how we handle your personal data in our [Applicant Privacy Policy](https://legal.mistral.ai/terms/applicant-privacy-policy). ## About Mistral ## Company Overview - **One-liner**: Mistral is a French AI company building open, frontier-grade large language models, developer platforms, and applied AI solutions for enterprises and governments. - **Entity Type**: Private (Series C) - **Headquarters**: Paris, France (15 rue des Halles) - **Founded**: April 2023 - **Founders**: Arthur Mensch (CEO), Guillaume Lample (Chief Science Officer), Timothée Lacroix (CTO) ## Core Business - **Primary industry/industries**: Artificial Intelligence, Large Language Models, Enterprise AI Software - **Target customers**: B2B, Enterprise, Government, and Developers (B2D) - **Mission or purpose statement**: "To make frontier AI open to all, and together solve the world's hardest problems." ## Products & Services - **Mistral Large**: Frontier-grade large language model for complex reasoning and enterprise tasks. - **Mistral Small 3**: Efficient, lightweight model for cost-sensitive deployments. - **Mistral Code / Vibe**: AI agent for long-horizon, autonomous software development and task completion. - **Le Chat**: Consumer-facing AI assistant and chatbot. - **Mistral OCR 4**: State-of-the-art document intelligence model for extracting and understanding text from images and PDFs. - **Mistral Forge**: Custom model development service for training, aligning, and evaluating proprietary AI models on private data. - **Mistral Studio**: Platform for building, testing, and running AI agents and applications with full control. - **Mistral Compute**: Infrastructure and orchestration platform for frontier-scale training and inference (edge to cloud). - **Mistral Search Toolkit**: Tools for integrating search and retrieval into AI applications. - **Voxtral**: Voice AI model for speech-based interactions. ## Market Standing - **Valuation/Market Cap**: $4.016 billion (latest reported valuation, per CB Insights; date not specified but likely post-Series C) - **Key Metric**: Total funding raised across Seed, Series A, Series B, and Series C rounds (specific amounts not disclosed in search results). - **Notable Investors/Partners**: Not explicitly named in search results, but the company partners with organizations in finance, manufacturing, defense, energy, and the public sector. - **Growth Signals**: - Rapid scaling: 900+ employees across 30+ nationalities as of mid-2026. - 50% of leadership roles held by women. - Key product launches on a near-monthly cadence (e.g., Mistral OCR, Forge, Vibe, Compute, Search Toolkit, Voxtral). - Strong presence in high-stakes, regulated industries (defense, energy, public sector). ## Competitive Advantages - **Open-source DNA**: Commitment to openness, transparency, and cost efficiency differentiates Mistral from closed, Big Tech AI labs. - **Full-stack ownership**: Controls the entire stack from frontier models to developer tools, applications, and compute infrastructure, enabling deep customization and reliability. - **European leadership**: Positioned as a sovereign, European AI champion, appealing to governments and enterprises seeking data control and regulatory compliance. - **Speed and rigor**: Culture of rapid experimentation, iteration, and data-driven decision-making. ## Strategic Focus - **Enterprise and government partnerships**: Co-creating tailored AI systems for mission-critical use cases in finance, manufacturing, defense, energy, and public sector. - **Open platform ecosystem**: Expanding Mistral Studio and Forge to enable customers to build custom models and agents on their own data. - **Infrastructure as a product**: Commercializing Mistral Compute to become a platform for others to train and run AI workloads. - **Continuous model innovation**: Releasing new frontier models and capabilities (OCR, voice, code agents) at a rapid pace. ## Why Work Here - **Culture**: Flat structure, high ownership, low ego, and a "builders, not order takers" mentality. The company values audacity, speed, rigor, and customer centricity. - **Remote/Hybrid/Office**: Based in Paris (15 rue des Halles); relocation support and visa sponsorship offered. Specific remote/hybrid policy not detailed, but global team suggests flexibility. - **Notable perks and benefits** (from careers page): - 20 weeks paid parental leave for all birthing parents. - 100% employer-sponsored medical, dental, and vision coverage for employees and dependents. - 6% 401k match (US) / 5% pension contribution (UK). - Childcare support (reserved daycare seats or financial assistance). - Meal allowances and transportation support. - Fitness and wellness subsidies. - Relocation and settling-in services. - Financial and career planning support. - **Team composition**: 900+ employees from 30+ nationalities; 50% female leaders. - **Interview process**: For science, product, and engineering roles: intro conversation → 2-5 technical exercises → 1-3 interviews (hiring manager + teammates) → values conversation → reference checks. ## Sources 1. [Mistral AI - About Page](https://mistral.ai/about/) 2. [Mistral AI - Careers Page](https://mistral.ai/careers/) 3. [Mistral AI - Homepage](https://mistral.ai/) 4. [CB Insights - Mistral AI Company Profile](https://www.cbinsights.com/company/mistral-ai) 5. [Mistral AI - LinkedIn](https://www.linkedin.com/company/mistralai) ## Other roles at Mistral - [Engineering Manager, Serverless Containers](https://feeny.ai/job/engineering-manager-serverless-containers-mistral-paris-m06we4kkhq7s) — Paris, France - [Engineering Manager, Fleet Delivery](https://feeny.ai/job/engineering-manager-fleet-delivery-mistral-paris-zsspnkk7y0k5) — Paris, France - [Engineering Manager, Storage](https://feeny.ai/job/engineering-manager-storage-mistral-paris-ekf23bqg33ar) — Paris, France - [Engineering Manager, Sandbox](https://feeny.ai/job/engineering-manager-sandbox-mistral-paris-5wx65405emb2) — Paris, France - [Senior Engineering Manager, IaaS](https://feeny.ai/job/senior-engineering-manager-iaas-mistral-paris-n545rbk6r28j) — Paris, France - [Forward Software Engineer](https://feeny.ai/job/forward-software-engineer-mistral-paris-gp4fe2vxk8pe) — Paris, France - [Forward Software Engineer, Data](https://feeny.ai/job/forward-software-engineer-data-mistral-paris-5j7fnp825t2q) — Paris, France - [Network Development Engineer, WAN & Edge](https://feeny.ai/job/network-development-engineer-wan-edge-mistral-paris-bb54t43jf8db) — Paris, France - [Network Development Engineer, Data Center Fabrics](https://feeny.ai/job/network-development-engineer-data-center-fabrics-mistral-paris-3sgd968rfyhv) — Paris, France - [Robotics Operations Specialist](https://feeny.ai/job/robotics-operations-specialist-mistral-paris-vfvdqhhr93t4) — Paris, France