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Mistral

Lead Applied AI, Fullstack Software Engineer, South Korea

Seoul
Level
Lead

Not stated in the posting: salary, work type, visa.

Open. First seen 2 October 2026.

Apply on the company's site →

About the role

Mistral's standard text

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.

About The Job

Mistral AI is seeking an Applied AI Engineer to facilitate the adoption of its products among customers and collaborate with them to address complex technical challenges.

The Applied AI Engineer - Software Engineer will be an integral part of our Applied AI Engineering team, which is dedicated to driving the successful deployment of Mistral AI products. They will work hand-in-hand with customers from the pre-sale stage to post-implementation, ensuring our solutions meet and exceed client expectations.

What you will do

- Deliver as an IC the critical lines of codes of our complex projects, you’ll be hands-on and de-risk the critical parts of our complex projects. You’ll stay deeply involved in coding, reviewing, and optimizing AI solutions.

- Lead technical teams of Applied AI Engineers, providing mentorship, technical guidance, and best practices for deploying state-of-the-art GenAI applications across industries.

- Lead technical discussions during pre-sales, translating customer requirements into actionable solutions and communicating Mistral’s technological advantages to diverse stakeholders.

- Design and oversee the implementation of complex AI systems, including fine-tuning, RAG, agentic workflows, and custom LLM applications, ensuring alignment with Mistral’s product roadmap and open-source initiatives.

- Drive innovation by identifying emerging trends in AI, evaluating new tools and methodologies, and championing best practices for fine-tuning, inference, and deployment.

- Work closely with product managers, researchers, and engineers to ensure seamless integration of customer feedback into Mistral’s product development cycle.

About you

  • You are fluent in English and Korean
  • You hold a degree in Computer Science, Software Engineering, or a related field.
  • You have 5+ years as a technical individual contributor on cutting-edge technologies
  • You have strong technical coding skills in Python and TypeScript
  • You have experience with front-end frameworks such as React, NextJS, or VueJS.
  • You have experience with back-end technologies such as NodeJS.
  • You have a solid understanding of software development principles, including design patterns, data structures, and algorithms.
  • You hold strong communication skills with an ability to explain complex technical concepts in simple terms with technical and non-technical audiences

Ideally you have:

  • Experience with LLM/GenAI models
  • Contributed to open-source projects or libraries
  • Experience as a Customer Engineer, Forward Deployed Engineer, Sales Engineer, Solutions Architect or Technical Product Manager

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.

Mistral's standard text

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

Privacy Policy

Your privacy matters to us. You can learn more about how we handle your personal data in our Applicant Privacy Policy.

What this role asks for

Particular to this role

Next.js · RAG · Vue

Rare in Mistral's other 137 open postings.

Standard for full stack roles

Node.js · React · TypeScript

Common in full stack postings at any company.

In most of Mistral's ads

Python

Named in most of its open postings, whatever the role.

75% of this description is written for the role. The rest is Mistral's standard text, folded away below.

Read against Mistral's other open postings on this site.

The team: Use-Case HIRES STEADILY

This role is one of 25 open in Use-Case. 6 were posted in the last 30 days and the oldest in June: a team that hires all year rather than one being built.

WHAT THE TEAM WORKS WITH, ACROSS ITS POSTINGS

Python (24 of 25), Generative AI (23 of 25), LLM (22 of 25), RAG (20 of 25), Machine Learning (19 of 25), PyTorch (14 of 25), NLP (11 of 25)

OTHER ROLES ON THIS TEAM

From the team and dates on Mistral's own job board.

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