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Mercor · Finance & specialist

Inorganic Materials, Semiconductor & Superconductor Experts

Listed on Mercor as “Inorganic Materials, Semiconductor & Superconductor Experts”

$84/hrRemoteContractPaid in USD
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How this rate compares

This listing

$84 per hour

Typical in Finance & specialist

$60–$100 per hour

Within the typical range

Typical: the middle of the lowest and highest rates posted by 345 listings in this category on Seoulstart, in US dollars.

What this actually is

You bring your specialist expertise to AI evaluation. The shape of the work varies but the pattern is the same: review outputs, rate quality, write prompts, flag errors. The platform title (Inorganic Materials, Semiconductor & Superconductor Experts) reflects the rate band and the expertise required, not the day-to-day work.

How Mercor picks people

  1. Upload your CV and answer the role's written questions.
  2. Do a video interview with Mercor's AI interviewer. Most take about 20 minutes, in English unless the role says otherwise.
  3. Some roles add a skills test. A test you pass once counts for similar roles.
  4. The project team reviews your results and sends offers to the people it picks.

Before you start

  • Take Mercor's free practice interview first. It does not count toward any application.
  • Use Chrome on a computer with a camera and microphone, in a quiet room.
  • You can retake an official interview up to 3 times, but hiring teams see how many times you retook it.

Not every applicant gets an offer. Prepare well for the interview.

How to prepare for the Mercor interview

Source: Mercor's help pages. talent.docs.mercor.com

Can you do this on your visa?

F-2 / F-4 / F-5 / F-6: open. E-1 to E-7: needs concurrent-employment permit. D-2 / D-4 students: S-3 permit, 20 hr/week cap. D-10 / D-8: case by case.

Korean tax on USD income

First 5 years in Korea: foreign-source income only taxed if remitted into Korea. After year 5: worldwide income. Full tax guide.

Original posting from Mercor

Mercor is seeking experimental scientists and engineers across inorganic synthesis, characterization, superconductors, and semiconductors (including advanced packaging) to support a frontier AI research lab building models for materials science and the physical sciences. This is hands-on, expert-level work: you'll apply deep, specialized knowledge to generate, structure, and evaluate the scientific data these models learn from - and your input will directly shape how advanced models reason about materials, devices, and processes.

Key Responsibilities:

  • Contribute domain expertise across synthesis, characterization, fabrication, and device physics to build high-quality training and evaluation data.
  • Review and evaluate AI-generated scientific reasoning, catching errors and improving technical accuracy.
  • Design and solve challenging, expert-level problems in your area of specialization.
  • Rate and rank model outputs against defined scientific criteria, with clear written reasoning.
  • Structure technical knowledge - experimental procedures, characterization results, process data - into well-organized, model-ready data.
  • Deliver reliable, high-quality work within defined timelines.

You're a strong fit if you have:

  • Hands-on experimental experience in one or more of: inorganic synthesis (solid-state, solution, solvothermal, sol-gel), superconducting materials, or semiconductors and advanced packaging.
  • Strong materials or device characterization skills (XRD, SEM, TEM, spectroscopy, electrical/transport measurements).
  • Experience with thin-film growth or device fabrication (MBE/epitaxy, MOCVD, CVD, sputtering, IBAD, etch, clean-room microfabrication) - a plus.
  • An advanced degree (PhD/MS) or equivalent hands-on experience in materials science, chemistry, physics, or a related engineering field.
  • Clear written English and the ability to explain technical reasoning concisely.

Role Details:

  • Type: Long-term, ongoing engagement
  • Engagement: Up to 40 hours/week (minimum 10)
  • Work arrangement: Remote (US-based)

Quoted from Mercor's public listing on 2026-11-13. We don't edit platform copy; honest framing is in the title and the “what this actually is” block above.

Mercor pays MantaWork a fee if it hires you through this link. Your pay is the same.