Product Behaviour Architect, Mistral AI
Fixed Term Contract
Generative AI model developers
Job no longer available
Generative AI model developers
501-1000 employees
Job no longer available
501-1000 employees
Company mission
To make frontier AI ubiquitous, and to provide tailor-made AI to all the builders.
Role
Who you are
- We’re looking for people who have experience with Web Search, Prosumer Products, and are experts in model evaluation, prompt engineering, and policy writing
- Join us if you are passionate about tackling cutting-edge, open-ended research challenges and transforming your findings into real-world products
- You have a deep understanding of Search, Consumer Products, and Conversational Design
- You have prior knowledge in training and optimising model behaviour and building evaluations
- You are willing to dive into prompt generations and unit tests
- You thrive in dynamic and technically complex environments
- You have a track record of delivering innovative, out-of-the-box solutions to address real-world constraints
What the job involves
- The Product team conducts research, defines product behavior, and evaluates our models to guide the behavior of models behind le Chat and APIs
- The team is responsible for improving the overall quality of both our models and products - defining and delivering the new frontier
- As a Product Behaviour Architect, you’ll be at the forefront of shaping LLM system behavior to align to our product goals
- Conduct research around new search capabilities, conversational design, and tool calling, leveraging and developing tools such as synthetic data, context distillation, and model training to shape the product and model behaviour of le Chat, our APIs, and our models
- Build evaluations and pipelines to facilitate the development and research in this area
- Integrate your research into the final products of Mistral AI
Salary benchmarks
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
$1.9bn
SERIES C
Jun 2024
$536.5m
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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