Applied Scientist / Research Engineer (Internship) · Mistral AI

Fri, 17 Apr 2026 12:47:54 GMT
Engineering

Mistral AI · Paris · onsite
About Mistral AI 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 are a global company with teams distributed between France, USA, UK, Germany, and Singapore. We offer a comprehensive AI platform that meets enterprise needs, whether on-premises or in cloud environments. Our offerings include le Chat, the AI assistant for life and work. Role Summary Mistral AI is seeking Applied Scientists Interns and Research Engineers Interns to drive innovative research and collaborate with clients on complex research projects. You will develop SOTA models across different modalities such as text, image, and speech. By developing novel methods and research ideas, you will apply these models across a diverse set of use cases and domains. Responsibilities • Run pre-training, post-training, and deploy state-of-the-art models on clusters with thousands of GPUs. • Generate and curate data for pre-training and post-training, working on evaluations and making sure the model's performance beats expectations. • Develop the necessary tools and frameworks to facilitate data generation, model training, evaluation, and deployment. • Collaborate with cross-functional teams to tackle complex use cases using agents and RAG pipelines. • Manage research projects and communications with client research teams. About You • You are fluent in English, and have excellent communication skills. You are at ease explaining complex technical concepts to both technical and non-technical audiences. • You're an expert with PyTorch or JAX. • You're not afraid of contributing to a big codebase and can find yourself around independently with little guidance. • You write clean, readable, high-performance, fault-tolerant Python code. • You don't need roadmaps: you just do. You don't need a manager: you just ship. • Low-ego, collaborative, and eager to learn. • You have a track record of success through personal projects, professional projects, or in academia. Benefits • Competitive salary • Food: Daily lunch vouchers • Sport: Monthly contribution to a Gympass subscription • Transportation: Monthly contribution to a mobility pass