Applied AI Engineer, Full-Stack at a Samsung & Nvidia-backed $24B AI Lab

About The Job The client is hiring for this role. Harper is an AI career agent that works for you, the candidate. Skip the application form: just talk to Harper, and it puts strong candidates straight in front of the client, plus other frontier roles worth your time. Job Title Applied AI Engineer, Full-Stack Salary Competitive base + Equity: top-tier comp at a world-leading AI lab Location Seoul (Hybrid) Company Description A European AI lab building open-weight, open-source frontier models that go head-to-head with the best closed labs. In September 2026 it raised a €3B Series D led by Samsung, with Nvidia participating, at a €21B (about $24B) valuation. They train the models, not wrap them. Teams across France, the US, UK, Germany, and Singapore, now building in Seoul. Low-ego, ship-fast, research-meets-production. What You'll Do Take frontier models into real enterprise software. You own the integration end to end.Design and ship scalable full-stack apps where the front end and back end actually fit together.Build complex customer use cases and get them running in production, not just in a demo.Work shoulder to shoulder with researchers, AI engineers, and product engineers, and push their feedback back into the models.Required Qualifications 2+ years as a hands-on IC on hard technical problems.Strong in Python and TypeScript.Comfortable across the stack: React, Next.js, or Vue on the front, Node.js on the back.You know your fundamentals (design patterns, data structures, algorithms) and when to ignore them.You can explain a hard technical tradeoff to an engineer and a CTO in the same meeting.Fluent in English and Korean.Nice to Have You have shipped with LLMs or GenAI.Open-source contributions.Experience as a Forward Deployed, Sales, or Solutions Engineer, or a Technical PM.Why Join Build on open-weight frontier models, the ones people actually fine-tune and self-host.Bring frontier AI to Korean enterprises from the front line.Work directly with a global team across France, the US, UK, Germany, and Singapore.Low-ego, ship-fast culture. Competitive comp + equity.