Product Designer, Le Chat

Mistral AI; City Of London; Hybrid; GBP 70,000 - 90,000; Full time

Job summary

A leading AI technology company seeks an experienced designer to join its founding design team in London. The role involves designing user-centric experiences for an AI assistant, collaborating with diverse teams, and contributing to the design culture. Candidates should have over 7 years in product design, a strong portfolio, and a passion for crafting delightful user experiences. The position offers competitive salary, equity, and a supportive work environment focused on innovation and collaboration.

Benefits

Competitive salary and stock options

Health insurance

Transportation allowance

Sport allowance

Meal vouchers

Private pension plan

Generous parental leave policy

Visa sponsorship

Qualifications

• 7+ years of product design experience with a strong portfolio.
• Experience with consumer-facing products, especially AI or chat.
• Fluent in user-centered design and prototyping tools.

Responsibilities

• Design end-to-end experiences for Le Chat.
• Prototype and iterate designs quickly.
• Collaborate deeply with cross-functional teams.
• Contribute to the design system for consistency across products.

Skills

Product design experience

Visual design

Interaction design

Figma proficiency

Prototype development

Collaborative teamwork

Job description

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 the needs of enterprises, 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, the USA, the 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.

Why this role matters

We’re assembling our founding design team to shape how people use AI for the next decade. At Mistral, we’re not just designing products—we’re designing for positive outcomes, building AI that feels human, intuitive, and delightful. If you’re a designer at heart—independent, craft‑obsessed, and excited to define the future of AI—let’s talk.

About Le Chat

We’re building a world‑class AI assistant. From personal productivity to teams using it in enterprises, Le Chat should be powerful but simple to use. It lives across web, mobile, and more, adapting seamlessly to how people work and create.

What you will do

• Design end‑to‑end experiences for Le Chat, from onboarding to advanced features.
• Prototype, iterate, and ship—fast. You’ll be hands‑on, turning ideas into tangible experiences.
• Collaborate deeply with research, engineering, and product teams. Clear communication and a low ego are key.
• Contribute to our design system, ensuring consistency and craft (including motion design) across Mistral’s products.

You're a great fit if

• ✔ You have 7+ years of product design experience, with a portfolio that shows explorations and delivered work. Experience with consumer‑facing products (especially AI, chat, or social) is a plus.
• ✔ You’re obsessed with craft—visual, interaction, and motion design. You know that great design is invisible until it’s missed.
• ✔ You’re fluent in Figma, prototyping tools, and user‑centered design, but more importantly, you know how to use them to solve real problems.
• ✔ You’re independent and resourceful, with a bias toward action.
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• ✔ You’re a self‑starter—results‑oriented, resourceful, innovative, intellectually curious, and willing to take initiative and risks.
• ✔ You’re highly collaborative, able to balance multiple projects and stakeholders.
• ✔ You’re professional, accountable, and driven, with a relentless focus on impact.
• ✔ You’re target‑driven, detail‑oriented, and approachable, able to prioritize and work well in an environment with competing demands.
• ✔ Bonus: Experience with AI prototyping (e.g., building interactive demos for LLMs or AI tools).

Why Mistral?

• •Founding team: This is your chance to help build the design culture and processes that will define Mistral for years to come.
• •Designing for good: Your work will shape how the world interacts with AI, focusing on positive outcomes.
• •Zero‑to‑one impact: You’ll design products from scratch, not just features.
• •Builder energy: We’re all builders at heart, more interested in making the best experiences than politics.

Hiring Process

• Recruiter's screen
• Portfolio review: Show us explorations and delivered work—we care about how you think, not just how it looks.
• Take‑home challenge: A product‑focused exercise to see how you tackle problems.
• Team Interview: Chat with Design, Engineering, and Leadership. We’re looking for collaborators, not egos.
• Culture fit: We want people who want to be here—who see Mistral as more than a job, but as a place to do their best work.

Location & Remote

This role is based in one of our European offices (Paris, France and London, UK). We will only consider candidates who either reside or are open to relocating there. We strongly believe in the value of in‑person collaboration 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.

What we offer

• 💰 Competitive salary and equity (stock‑options)
• 🧑⚕️ Health insurance
• 🚴 Transportation allowance
• 🥎 Sport allowance
• 🥕 Meal vouchers
• 💰 Private pension plan
• 🍼 Generous parental leave policy
• 🌎 Visa sponsorship