Applied AI Engineer, Prototyping

Mistral; Paris; On-site; EUR 65,000 - 90,000; Full time

Benefits offered by this job

Healthcare coverage

Retirement plans

Relocation support

Wellness programs

Meal and transportation allowances

Job summary

Mistral in Paris is seeking an Applied AI Engineer for the Proto team to design and deliver production-grade AI systems in rapid cycles. You will work at the intersection of product and customer, translating business needs into scalable technical solutions.

You will guide architecture, collaborate with internal teams and clients, and contribute to open-source initiatives while enabling new business opportunities and ongoing product improvement.

Qualifications

• At least 2 years building and deploying production AI products
• Strong Python and FastAPI experience
• Experience with frontend frameworks such as React or Vue
• Experience with GenAI stacks (RAG, Agent, Evaluation & Orchestration)
• Ability to translate business needs into technical plans and communicate with stakeholders

Responsibilities

• Deliver end-to-end full-stack AI solutions from scoping through deployment
• Partner with customers to clarify needs and architect robust systems
• Ship ready-to-use applications for clients and internal teams
• Lead architecture and technical choices for scalable, reliable solutions
• Diagnose and solve complex technical problems across industries and use cases
• Contribute to internal tools, product improvements, and open-source initiatives
• Evaluate and integrate new technology capabilities into existing systems

Skills

Python

FastAPI

React

Vue.js

Code quality

Architecture

Communication

Tools

RAG tooling

Job description

About Mistral

Mistral provides full-stack AI solutions: from frontier models to developer tools, applications, and compute. We partner with enterprises tackling the hardest problems—across high-stakes industries like finance, manufacturing, defense, healthcare, and the public sector—co-creating customized AI systems that they can run on their terms.

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 Europe, North America, Asia and the Middle East. We are creative, low-ego and team-spirited.

The Role

As an Applied AI Engineer on the Proto team, you will lead the design and delivery of robust, production-grade AI systems in rapid development cycles. The Proto team sits at the intersection of product and customer, turning advanced technology into meaningful, real-world solutions. You will be deeply involved in both client-facing and internal projects, ensuring Mistral’s capabilities directly address business needs and drive measurable value.

You will translate complex, often ambiguous business requirements into engineered solutions that work at scale. In this role, you guide technical decisions, collaborate closely with internal teams and customers, and help shape product direction by pressure-testing what’s possible. Your work will unlock new business opportunities and help drive continuous product improvement.

What You Will Do

• Deliver end-to-end full-stack AI solutions from project scoping through deployment
• Partner with customers to clarify needs, define requirements, and architect robust systems
• Ship ready-to-use applications for both clients and Mistral’s internal teams
• Lead architecture and technical choices, ensuring solutions are scalable and reliable
• Diagnose and solve complex technical problems across various industries and use cases
• Contribute to internal tools, product improvements, and open-source initiatives
• Evaluate and integrate new technology capabilities into existing systems

What We’re Looking For

• At least 2 years building and deploying production AI products or systems
• Strong experience with vibe coding tool, with high regards for clean code & high architecture standards
• Experience working with modern GenAI stacks with expertise in RAG, Agent, Evaluation & Orchestration.
• Strong Python skills, with experience in scalable backend frameworks like FastAPI
• Familiarity with frontend development, ideally using frameworks such as React or Vue
• Ability to quickly understand business needs and translate them into technical plans
• Skilled at explaining complex technical ideas to diverse stakeholders
• Track record of collaborating effectively across different teams

What We Offer

We offer a comprehensive benefits package designed to support your well-being, growth, and work-life balance. Benefits vary by country and may include healthcare coverage, parental leave, retirement plans, relocation support, wellness programs, meal and transportation allowances, and other location-specific perks.

For the most up-to-date details on benefits available in your location, please refer to our Benefits page.

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