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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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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.

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 2026-08-04. We don’t edit platform copy; honest framing is in the title and the “what this actually is” block above.