Software Engineer, Full-stack / Front-end

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About Mistral At Mistral AI, we believe in the power of AI to simplify tasks, save time, and enhance learning and creativity. Our technology is designed to integrate seamlessly into daily working life. We democratize AI through high‑performance, optimized, open‑source, and cutting‑edge models, products and solutions. Our comprehensive AI platform meets enterprise needs both on‑premises and in cloud environments. Our offerings include le Chat, the AI assistant for life and work. 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 France, USA, UK, Germany and Singapore. We are creative, low‑ego and team‑spirited. Join us to be part of a pioneering company shaping the future of AI. See more about our culture at

Role Summary

We are seeking a passionate and skilled Senior Full‑Stack Engineer to join our growing team. In this role, you will work on our complete range of products, contributing to development and enhancement. Your work will directly impact the user experience, making it more engaging, efficient, and intuitive.

What You Will Do

• Full‑Stack Development: Design, develop, and maintain scalable and robust features, ensuring seamless integration between front‑end and back‑end systems using a modern stack.
• User‑Centric Design: Prioritize user experience and ensure that our products meet the needs and expectations of our user base.
• Code Quality: Write clean, maintainable, and well‑documented code, and participate in code reviews to uphold our high standards of quality.
• Collaboration: Work closely with cross‑functional teams, including product managers, designers, and other engineers, to deliver high‑quality software solutions.
• Problem‑Solving: Tackle complex technical challenges and develop elegant, efficient solutions that improve performance and reliability.
• Innovation: Stay up‑to‑date with the latest technologies and trends in AI and software development, and apply them to enhance our products.

About You

• Proficient in TypeScript and Node JS with a preference for experience in B2C contexts.
• Experience in a front‑end framework like React, Next.js, Remix, or Vue.js.
• Knowledge of web libraries such as TanStack React Query, tRPC, Framer Motion, and similar.
• Comfortable shipping products end‑to‑end.
• Strong problem‑solving abilities and attention to detail.
• Excellent communication skills.
• Low‑ego and team‑spirited mindset.
• Autonomous and self‑starter.

Additional Experience (Nice to Have)

• Experience with AI products, particularly LLMs.
• Python.
• Distributed systems.
• Monitoring/Alerting.
• UX development (Figma).

Hiring Process

• Introduction call – 45 min.
• Hiring manager interview – 30 min.
• Technical rounds.
• Live‑coding interview (TypeScript) – 45 min.
• System design interview – 45 min.
• Optional: deep‑dive interview – 60 min.
• Culture‑fit discussion – 30 min.
• References.

Location & Remote

The position is based in our Paris HQ offices and encourages office presence at least three days per week to create bonds and smooth communication. Our remote policy provides flexibility, improves work‑life balance, and increases productivity. Each manager decides the number of remote days based on autonomy and specific context (e.g. more flexibility during summer). Employees are expected to maintain regular communication and be available during core working hours.

What We Offer

• Competitive salary and equity package.
• Health insurance.
• Transportation allowance.
• Sport allowance.
• Meal vouchers.
• Private pension plan.
• Generous parental leave policy.
• We may use AI tools to support parts of the hiring process; final decisions remain human.

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Senior Level

Not applicable

Employment Type

Full‑time

Job Function

Engineering and Information Technology

Industry

Technology, Information and Internet