Meridial (Invisible)Domain experts
Nuclear Physics Specialist - Freelance AI Trainer Project
up to $65/hr
About this role, in Meridial (Invisible)'s words
Are you a nuclear physics expert eager to shape the future of AI? Large‑scale language models are evolving from clever chatbots into powerful engines of scientific discovery. With high‑quality training data, tomorrow’s AI can democratize world‑class education, keep pace with cutting‑edge research, and streamline lab work for scientists everywhere. That training data begins with you—we need your expertise to help power the next generation of AI.
A closer look
More context, when you need it.
Full job descriptionThe original posting, in Meridial (Invisible)'s words
Posted by Meridial (Invisible), reproduced here so you can judge the role before clicking. Original posting ↗
Are you a nuclear physics expert eager to shape the future of AI? Large‑scale language models are evolving from clever chatbots into powerful engines of scientific discovery. With high‑quality training data, tomorrow’s AI can democratize world‑class education, keep pace with cutting‑edge research, and streamline lab work for scientists everywhere. That training data begins with you—we need your expertise to help power the next generation of AI.
We’re looking for nuclear physics specialists who live and breathe nuclear structure, particle interactions, nuclear decay processes, reactor physics, radiation transport, nuclear instrumentation, accelerator physics, and quantum chromodynamics. You’ll challenge advanced language models on topics like nuclear reaction mechanisms, fission and fusion processes, neutron scattering, isotope production, nuclear spectroscopy, and high-energy particle detection—documenting every failure mode so we can harden model reasoning.
On a typical day, you will converse with the model on experimental nuclear physics scenarios and theoretical questions, verify factual accuracy and logical soundness, capture reproducible error traces, and suggest improvements to our prompt engineering and evaluation metrics.
A PhD in nuclear physics or a closely related field is ideal; peer‑reviewed publications, experimental research, reactor operations, or hands‑on experience with nuclear instrumentation signal fit. Clear, metacognitive communication—“showing your work”—is essential.
Ready to turn your nuclear physics expertise into the knowledge base for tomorrow’s AI? Apply today and start teaching the model that will teach the world.
We offer a pay range of $8‑to‑$65 per hour, with the exact rate determined after evaluating your experience, expertise, and geographic location. Final offer amounts may vary from the pay range listed above. As a contractor you’ll supply a secure computer and high‑speed internet; company‑sponsored benefits such as health insurance and PTO do not apply.
Job title: Nuclear Physics Specialist – AI Trainer Employment type: Contract Workplace type: Remote Seniority level: Mid‑Senior Level
Working with Meridial (Invisible)Pay, getting started and work, from Meridial (Invisible)'s own pages
What the platform publishes in general. These are not extra terms confirmed for this particular role.
- Getting paid
- Earnings are processed every two weeks. Meridial says all time on projects is paid, with no platform cut. meridial.ai/faq, meridial.ai/become-an-expert
- Before your first paid task
- A profile, a brief confirmation step, then a signed Statement of Work once you are matched. Its postings say the exact rate is set after it evaluates your experience, expertise and location. meridial.ai/faq, job-boards.greenhouse.io/agency/jobs/4784908101
- How much work
- No guarantee of immediate work: Meridial reaches out when a project needs your domain, and your profile stays active until then. meridial.ai/faq
- Contract
- Independent contractor, not an employee of Meridial or Invisible Technologies. meridial.ai/faq
Read on the pages linked above on 23 Sep 2026. Platforms change these terms, so check the linked page before you rely on one.
How does the pay compare?Across Domain experts roles, not this role alone
From our own daily reads of every open listing on the platforms we follow, not from Meridial (Invisible)'s posting. How we count.
Pay across the field: Domain experts
Across 692 roles in this field with a stated hourly rate in US dollars, on 18 platforms, the middle half pays $65 to $130 an hour at the top of the range, and the median is $100. This role's top rate, $65, is in the middle half. Of the 259 distinct rates we count, 63 are lower and 185 are higher.
| Platform | Roles | Top of range, per hour |
|---|---|---|
| Alignerr | 149 | $24 to $200 · median $80 |
| micro1 | 130 | $28 to $400 · median $110 |
| AfterQuery | 88 | $45 to $175 · median $100 |
| Handshake AI | 79 | $30 to $300 · median $85 |
| Mercor | 78 | $55 to $450 · median $120 |
Sources and listing historyWhere this information comes from
This listing's history
- First seen here on 19 Aug 2026, and still on Meridial (Invisible)'s list when we last read it on 13 Oct 2026.
- Posted by Meridial (Invisible)
- First seen by AIPayList
- Last seen live
- Listing ID
- 4633486101
Pay as the source states it: “pay range of $8‑to‑$65 per hour”.
Platforms sometimes change a rate after posting. Every listing here is re-read at least once a day and corrected when its source moves, so a difference you see on the platform is usually a change made since the last read. How freshness works.
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