Research Software Engineer

Join Mistral, a leading AI solutions provider, as a Research Software Engineer. In this role, you will design and enhance the codebase, tools, and distributed services that enable our scientists to train and deploy frontier-scale models. You will work closely with researchers and product teams, writing efficient and well-tested code, optimizing distributed services, and prototyping utilities. This position offers a hybrid work model with locations in Paris, Warsaw, Zurich, London, or remote within the EU/UK.

• Accelerate researchers by owning the complex parts of large-scale pipelines and delivering robust internal tooling.
• Interface research with product: expose clean APIs, automate model pushes, surface live metrics.
• Write efficient, well-tested Python and systems code; enforce code review, CI, and observability.