> Markdown version of [/jobs/ext/1416185-software-engineer-backend](https://www.wearedevelopers.com/jobs/ext/1416185-software-engineer-backend). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Software Engineer, Backend - **Company:** Mistral AI - **Location:** Paris, France - **Contract:** Permanent contract - **Skills:** Application Programming Interfaces (APIs), Artificial Intelligence, User Authentication, Distributed Systems, Modular Design, Performance Tuning, Systems Architecture, Backend, AI Platforms - **Published:** July 24, 2026 - **Apply:** https://fr.indeed.com/viewjob?jk=4feb8a8698210ac9 ## About the Role * Experience designing and building scalable backend systems and APIs. * Strong problem-solving skills and ability to tackle complex engineering challenges. * Experience with distributed systems and performance optimization. * Ability to write clean, maintainable, and well-documented code. * Experience with system architecture and secure, scalable design. * Strong collaboration skills and ability to work with cross-functional teams. * Experience with modern backend frameworks and technologies. * Eagerness to learn, iterate, and deliver products. ## Description As a Backend Engineer on the Engineering team, you will build the core systems that power our AI platform. Our team develops the backend infrastructure and APIs that enable Studio, Vibe, and Vibe Code, shaping how millions of users and developers interact with our technology. Your work will directly affect the reliability, performance, and scalability of our products. We focus on creating robust, high-performance systems that support authentication, billing, AI tooling, and developer experience. By joining us, you will contribute to a platform that enables both internal teams and external users to build and deploy AI applications. What You Will Do * Design, develop, and maintain scalable backend features and APIs that power our AI platform. * Ensure high performance and reliability across distributed systems serving millions of users. * Build and improve systems for authentication, billing, AI tooling, and developer experience. * Design and implement secure, scalable architectures to support our growing products. * Collaborate with infrastructure teams on deployment, monitoring, and performance optimization. * Write clean, maintainable, and well-documented code. * Partner with cross-functional teams to deliver end-to-end features. * Solve complex engineering challenges and integrate new technologies into production. ## Related Videos - [This App Reached 10,000 Users in One Week. Here's How.](https://www.wearedevelopers.com/videos/100329-this-app-reached-10-000-users-in-one-week-here-s-how) - [Developing the Backend with Stefan Lingler, CTO at Shpock](https://www.wearedevelopers.com/videos/100360-developing-the-backend-with-stefan-lingler-cto-at-shpock) - [Pioneering AI Assistants in Banking](https://www.wearedevelopers.com/videos/1627-pioneering-ai-assistants-in-banking) - [Inside Bitpanda's Tech Stack: Scaling a European Fintech Leader - Markus Dorner](https://www.wearedevelopers.com/videos/1979-inside-bitpanda-s-tech-stack-scaling-a-european-fintech-leader-markus-dorner) - [Developer Experience, Platform Engineering and AI powered Apps](https://www.wearedevelopers.com/videos/990-developer-experience-platform-engineering-and-ai-powered-apps) - [Nest.js - TypeScript in the backend can also be clean](https://www.wearedevelopers.com/videos/1033-nest-js-typescript-in-the-backend-can-also-be-clean) ## Related Articles - [Navigating the AI Shift](https://www.wearedevelopers.com/magazine/629-navigating-the-ai-shift) - [Dev Digest 120 - Apple and peers](https://www.wearedevelopers.com/magazine/455-dev-digest-120-apple-and-peers) - [The 7 Most Popular Backend Frameworks for Developers](https://www.wearedevelopers.com/magazine/403-the-7-most-popular-backend-frameworks-for-developers) - [How to Become an AI Engineer](https://www.wearedevelopers.com/magazine/331-how-to-become-an-ai-engineer) - [Top-Paying Tech Jobs (with Salaries)](https://www.wearedevelopers.com/magazine/372-top-paying-tech-jobs-with-salaries) - [MLOps And AI Driven Development](https://www.wearedevelopers.com/magazine/82-mlops-and-ai-driven-development)