Software Engineer, Backend

About Mistral 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. What You Will Do 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 inference, billing, AI tooling, observability, 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 Collaborate with product managers, platform engineers, and AI/ML teams to design, build, and deliver scalable model-as-a-service solutions for developers and enterprise users. 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. What We're Looking For Degree in Computer Science, Software Engineering, or equivalent practical experience. Proficiency in Python or another backend language (Golang, Kotlin, C#). Engineers are assessed in their preferred language during a live coding session. Strong understanding of backend fundamentals: APIs, databases, caching, messaging systems and distributed architectures. Strong problem-solving abilities and attention to detail. Ownership mindset capable of shipping end-to-end features with minimal oversight. Excellent communication skills and collaborative attitude. Team-oriented, low-ego mindset and curiosity for learning. Ideal Experience Full-stack exposure Working closely with an API & developer ecosystem Deploying software to a diverse set of environments (cloud, on-premises, etc.) Infrastructure management (Docker, CI/CD, Kubernetes, Helm, Terraform...) AI/ML engineering Observability and monitoring tools (Prometheus, Grafana, Datadog...) UX and product-centric mindset. Hiring Process Introduction call - 30 min Live-coding interview - 45 min System Design interview - 45 min Hiring Manager interview - 30 min Deep Dive Interview (only for leads & staff engineers) - 60 min Culture-fit discussion - 30 min Reference checks What We Offer 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. Privacy Policy Your privacy matters to us. You can learn more about how we handle your personal data in our Applicant Privacy Policy. #J-18808-Ljbffr