Harper
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AI / Solutions

Applied AI / ML Engineer ($150K–$300K + Equity)

Full-time🇰🇷 Seoul

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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, Machine Learning Engineer

Salary

Competitive base + Equity: top-tier comp at a world-leading AI lab

Location

Seoul (On-site)

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 state-of-the-art GenAI from research into production, across consumer and industrial use cases with real business impact.
  • Own customer onboarding on the models and APIs: prompting, evals, fine-tuning, and production integration.
  • Ship the hard parts (complex fine-tuning, agentic and RAG pipelines) and contribute to the open-source codebases for inference and fine-tuning.
  • Join pre-sales calls and explain the technology plainly.
  • Feed what you learn in the field back into the models with the research and product teams.

Required Qualifications

  • 2+ years as a hands-on IC (data scientist or software engineer) on AI products.
  • PhD or Master's in AI or data science.
  • You've fine-tuned LLMs and built advanced RAG or agentic use cases.
  • Deep grasp of the concepts and algorithms under ML and LLMs, not just the API.
  • Strong Python; deep learning with PyTorch; agent frameworks (LangChain) and vector DBs.
  • You can make a complex model decision clear to non-experts.
  • Fluent in English and Korean.

Nice to Have

  • Open-source LLM contributions.
  • A background as a Forward Deployed, Customer, or Sales Engineer, Solutions Architect, or Technical PM.

Why Join

  • Work on open-weight models the whole field builds on, and ship them into production.
  • Take frontier research to Korean enterprises, hands-on.
  • Direct collaboration with a global research and product team.
  • Low-ego, ship-fast culture. Competitive comp + equity.