Senior/Staff Applied Scientist/Research Engineer

The Role

As a Senior/Staff Applied Scientist/Research Engineer on the Mistral AI research team, you will drive key research efforts and partner with clients to solve challenging problems in artificial intelligence. Your work will focus on building and applying advanced models across text, image, and speech, aiming to deliver real, measurable impact. Collaborating closely with internal and external teams in science, engineering, and product, you will play a central role in developing AI solutions with tangible results.

What You Will Do

• Run pre-training and post-training sessions, deploying state-of-the-art models across large GPU clusters.

• Generate, curate, and evaluate datasets for model development, ensuring high model performance.

• Build and refine tools and frameworks supporting data generation, training, and deployment.

• Collaborate with diverse teams to address complex challenges using deep learning agents and retrieval-augmented generation pipelines.

• Lead research projects and maintain clear communication lines with client research groups.

• Diagnose and resolve technical challenges in model development and deployment.

• Improve existing systems for performance, maintainability, and reliability.

• Ensure projects meet or exceed expected outcomes.

• Fluency in English with clear communication skills for technical and non-technical audiences

• Deep expertise in PyTorch or JAX

• Proven ability to independently contribute to large codebases and write robust Python code

• Experience driving research or engineering projects in personal, academic, or professional settings

• Collaborative approach and openness to feedback

• High initiative, ability to deliver without rigid direction

• Expertise in multiple modalities such as agents, multi-modality, robotics, diffusion, or time-series appreciated

• Advanced degree in a relevant field or equivalent experience valued