Software Engineer, Mistral Vibe
Mistral AI
Software Engineering
Paris, France
Posted on Dec 24, 2025
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 is designed to meet enterprise needs, whether on-premises or 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. Together, we can make a meaningful impact. See more about our culture on https://mistral.ai/careers.
Role summary
We are seeking passionate and talented Fullstack Engineers to join our growing Mistral Vibe team and help shape the future of AI-powered coding. With the recent launch of Devstral 2 (our next-gen coding model) and Mistral Vibe (our open-source CLI for end-to-end code automation), this role offers a unique chance to build and refine our AI-driven developer tools. Your work will directly influence how users interact with our products — making them faster, smarter, and more intuitive. This role is for you if you’re excited about pushing the boundaries of AI in software development.
What you will do
Depending on your skills and field of expertise, you will be involved in key components of our technology, including:
• Full Stack Development: Design, develop, and maintain scalable and robust features, ensuring seamless integration between front-end and back-end systems
• 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 quality standards.
• 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
• Degree in Computer Science, Software Engineering, or equivalent practical experience.
• Proficiency in Python
• Comfortable shipping products end-to-end
• Strong problem-solving abilities and attention to detail
• Excellent communication
• Low Ego and team spirit mindset
• Autonomous and self-starter
Now it would be ideal if you have experience with :
• AI Products, particularly with LLMs
• Distributed Systems
• Monitoring/Alerting
• JavaScript/TypeScript, UX development (Figma)
Hiring Process
• Introduction call - 30 min
• Technical rounds
--- Live-coding interview - 45 min
--- System Design interview - 45 min
--- Project Deep Dive Interview (only for leads & staff engineers) - 60 min
• Hiring Manager interview - 30 min
• Culture-fit discussion - 30 min
• Reference checks
Location & Remote
The position is based in our Paris HQ offices and we encourage going to the office as much as we can (at least 3 days per week) to create bonds and smooth communication. Our remote policy aims to provide flexibility, improve work-life balance and increase productivity. Each manager can decide the amount of days worked remotely based on autonomy and a specific context (e.g. more flexibility can occur during summer). In any case, employees are expected to maintain regular communication with their teams 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