Harper
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Senior/Staff Applied AI, Machine Learning Engineer

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
Senior/Staff Applied AI, Machine Learning Engineer

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

Location
Seoul (On-site)

Company Description
One of the world's most important AI labs — European, building open-weight, open-source frontier models that go head-to-head with the best closed labs. 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

  • Deploy high-business-impact use cases into production across industries — you own the outcome.
  • Take state-of-the-art GenAI from consumer products to heavy industrial use cases.
  • Lead the most complex customer projects — advanced fine-tuning, SOTA LLM applications — and contribute to the open-source codebases (inference, fine-tuning).
  • Run pre-sales with CEOs/CTOs, data scientists, and engineers, and translate frontier research into something they can ship.
  • Improve the models with the research and product teams based on what you see in the field.

Who You Are

  • 7–10+ years as a hands-on IC (data scientist or software engineer) on AI products. PhD/Master's in AI/DS — or self-made.
  • You've fine-tuned LLMs and shipped advanced RAG / agentic use cases.
  • Deep understanding of ML and LLM internals, plus cloud infra and how to deploy AI in production.
  • You've built or deployed products with a large-scale user base.
  • You explain complex systems simply, to any audience.
  • Fluent in English.
  • Bonus: open-source LLM contributions; Forward Deployed Engineer, Staff ML Engineer, or Staff Data Scientist background.

Why Join

  • Own frontier deployments end to end, on open-weight models the whole field builds on.
  • Be the senior technical anchor for the Seoul team.
  • Direct collaboration with a global research + product org.
  • Low-ego, ship-fast culture. Competitive comp + equity.

How Harper Works

  • Sign up and talk to Harper.

    Tell Harper about the work you've done and the kind of environment you'd like to work in next.

  • Show interest in a role you like.

    Harper will review the role and assess how well it fits you, using information the company has shared privately with Harper.

  • Harper connects you with the company.

    If it looks like a good fit, Harper may recommend you to the company first or ask whether you'd like to move forward with the role, depending on your settings. If you say yes, Harper helps make the connection right away.

  • Keep the door open while you work.

    Harper keeps looking for opportunities that match what you want and suggests new connections. You don't have to be actively job searching. You can consider each company's proposal before deciding whether to move forward, and Harper will help you through the process.

    • FAQ

    Are these real job opportunities?

    Yes. These are roles companies have asked Harper to help with, and Harper is in direct contact with them.

    Am I applying directly here?

    No. Harper uses information the company has shared privately to assess how well the role fits you. If it looks like a good fit, Harper may recommend you to the company first or ask whether you'd like to move forward with the role first. If you accept, Harper helps make the connection right away. For now, tell Harper which role interests you. Harper will review it first and prepare what it needs to introduce you well.

    How is this different from applying directly to the company?

    You're more likely to reach a meeting, and Harper helps you through the process.

    Will my information be shared with the company?

    You can choose between two approaches. With Exceptional only, Harper shows you a strong opportunity first and shares your profile with the company only after you accept and allow profile sharing. With Open to matches, Harper may introduce your profile to a company first when there's a strong fit. This can lead to more opportunities, and you can review the company's proposal before deciding whether to move forward.

    What if I'm not looking to move right now?

    That's fine. Tell Harper you're not planning a move right now. You can look at a proposal you like and decide then.

    Does a person review my profile along the way?

    Harper Agent reviews the fit first. Before an introduction to a company, a Harper team member gives the connection a final check. Your profile is shared with the company according to your settings and consent.

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