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Open-Source AI · Paris
Mistral provides full-stack AI solutions: from frontier models to developer tools, applications, and compute. We partner with enterprises tackling the hardest problems—across high-stakes industries like finance, manufacturing, defense, healthcare, and the public sector—co-creating customized AI systems that they can run on their terms.
We are a dynamic, collaborative team passionate about AI and its potential to transform society. Our diverse workforce thrives in competitive environments and is committed to driving innovation. Our teams are distributed between Europe, North America, Asia and the Middle East. We are creative, low-ego and team-spirited.
We’re looking for passionate and talented software engineers to join our team. As a Backend Engineer, you’ll play a key role in developing the core systems that drive our Cloud solutions. Your work will involve building robust, high-performance backend systems and APIs to support our rapidly expanding enterprise user base.
Depending on your skills and field of expertise, you will be involved in key components of our technology, including:
Backend Development
- Design, develop and maintain scalable, robust backend features and APIs using modern frameworks.
- Ensure high performance and reliability across our distributed systems.
- Contribute to systems powering authentication, billing, AI tooling, observability, connectors, and developer experience.
System Architecture
- Design and implement efficient, secure and scalable architectures that support our fast-growing products.
- Collaborate with infrastructure teams on deployment, monitoring, and performance optimization.
Code Quality
- Write clean, maintainable and well-documented code.
- Participate in code reviews and contribute to technical standards and best practices.
Cross-functional Collaboration
- Work closely with product managers, front-end engineers, designers and data/AI engineers to deliver end-to-end features.
- Partner with teams across AI Studio, Le Chat & Mistral Code to ensure consistent platform-wide experience.
Problem-Solving & Innovation
- Tackle complex engineering challenges, from distributed systems to AI product integration.
- Stay up-to-date with new technologies (e.g., AI/LLM integration, observability, or backend frameworks) and bring them into production when relevant.
• Proficiency in Golang
• Strong understanding of backend fundamentals: APIs, databases, caching, messaging systems and distributed architectures.
• Experience with cloud-based (AWS, GCP, Azure) and bare-metal infrastructure
• Infrastructure management (Docker, CI/CD, Kubernetes, Helm, Terraform...)
• Observability and monitoring tools (Prometheus, Grafana, Datadog…).
• Strong problem-solving abilities and attention to detail.
• Ownership mindset capable of shipping end-to-end features with minimal oversight.
• Introduction Call - 45 min
• Technical Interview / Live Coding - 45 min
• Technical Interview / System Design - 45 min
• Culture-fit Discussion - 30 min
• References
We offer a comprehensive benefits package designed to support your well-being, growth, and work-life balance. Benefits vary by country and may include healthcare coverage, parental leave, retirement plans, relocation support, wellness programs, meal and transportation allowances, and other location-specific perks.
For the most up-to-date details on benefits available in your location, please refer to our Benefits page.
Your privacy matters to us. You can learn more about how we handle your personal data in our Applicant Privacy Policy.