As a Backend Engineer at Mistral AI, you will be at the epicenter of the generative AI revolution, building the foundational systems that power flagship products like Le Chat and AI Studio. Your daily work will involve architecting high-performance APIs and robust distributed systems that must remain resilient while serving millions of global users. You will not just be writing code; you will be designing the infrastructure for authentication, complex billing cycles, and developer-centric tooling that allows the world to interact with cutting-edge large language models. This is a high-impact role where your engineering decisions directly influence how accessible and efficient AI technology becomes for the next generation of creators. You will join a lean, high-velocity team that values technical rigor and a low-ego approach to problem-solving. Mistral AI is a unique environment that blends the spirit of open-source innovation with the scale of enterprise-grade solutions. The culture here is built on the principle of shipping early and iterating fast, meaning you will see your contributions move from development to production at an accelerated pace. Collaboration is deeply cross-functional, requiring you to interface with infrastructure specialists, product designers, and AI researchers to ensure a seamless end-to-end user experience across their expanding ecosystem. This position offers an unparalleled growth trajectory for engineers who want to master the intersection of backend systems and artificial intelligence. Whether you are joining as a rising talent or a seasoned staff engineer, you will be challenged to solve complex problems related to observability, system security, and scalability. As Mistral AI continues its global expansion, you will have the opportunity to define technical standards and mentor others, ultimately helping to shape the future of a company that is democratizing access to the world's most advanced AI models.