Software Engineer, Mistral AI
Mistral Vibe
+ Equity
3-5 days a week in office
Generative AI model developers
Open for applications
Generative AI model developers
501-1000 employees
Open for applications
+ Equity
3-5 days a week in office
501-1000 employees
Company mission
To make frontier AI ubiquitous, and to provide tailor-made AI to all the builders.
Role
Who you are
- 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
Desirable
- AI Products, particularly with LLMs
- Distributed Systems
- Monitoring/Alerting
- JavaScript/TypeScript, UX development (Figma)
What the job involves
- 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
- 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
Application 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
Our take
Founded by Facebook AI researchers, Mistral AI focuses on developing open-source generative AI models to "make AI useful." It emerged in early 2023, quickly achieving a $260 million valuation.
Mistral features up to 176 billion parameters, and its open-source nature has sparked concerns about potential misuse. However, Mistral remains a formidable competitor in the AI landscape, challenging models from Google and Meta.
In 2025, Mistral secured a massive €1.7 billion funding round, raising its valuation to €11.7 billion. This Series B funding, led by European chip firm ASML, underscores significant interest in alternatives to ChatGPT and a push away from Silicon Valley dependence by European AI competitors.
Freddie
Company Specialist at Welcome to the Jungle
Company
Funding (last 2 of 5 rounds)
Sep 2025
$2.0bn
SERIES C
Jun 2024
$547.4m
SERIES B
Total funding: $3.1bn
Company benefits
- Competitive bonus structure
- Equity
- Opportunities for professional growth and development
Company HQ
Villette, Paris, France
Leadership
Timothee Lacroix
(Co-Founder & CTO)Previously PhD and Software Engineer Intern at Facebook and Visiting Undergraduate at CAlab UCSD
Guillaume Lample
(Co-Founder & Chief Scientist)Research Student and Scientist at Facebook AI and Research Intern at Jane Street Capital
Arthur Mensch
(Co-Founder & CEO)Previously Staff Research Scientist at DeepMind, Post-doc researcher at École normale supérieure, Visiting Researcher at NYU Courant Institute of Mathematical Sciences and PhD Student at Inria
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