Science Specialist (Fluent in Portuguese - Portugal) - Freelance AI Trainer Project
Meridial · Portugal · Research / analysis
Science Specialist (Fluent in Portuguese - Portugal) - Freelance AI Trainer Project is an open role at Meridial, located in Portugal, with pay listed as $8–$65/hr.
Applications open on Meridial’s own site. How we make money.
At a glance
- Pay
- $8–$65/hrStated by Meridial
- Location
- Portugal
- Education
- Preferred: bachelor's, master's or PhD in a science field
- Languages
- Fluent Portuguese (Portugal)
- Work type
- Research / analysis
- Field
- Science / STEM
- Listed
- Since Jul 19, last confirmed Oct 24
The work
Test advanced language models with science questions, check their answers for accuracy, and log the errors you find.
What you would do
- Chat with AI models about science scenarios and theory questions
- Check model answers for factual accuracy and sound logic
- Record reproducible error traces
You're a fit if you
- are fluent in Portuguese
- communicate clearly and explain your reasoning
- have strong knowledge of subjects such as chemistry, physics, astronomy and earth science
- own a protected computer and a fast internet connection
Summarised by HumanSourcer from Meridial’s listing. Check the listing before you apply.
How the pay compares
Higher than 34% of the 106 distinct hourly rates advertised for Science / STEM roles right now. Hourly USD, top of each advertised range, one count per distinct rate. Same method as the Pay Index.
From Meridial’s listing
“Are you a science specialist fluent in Portuguese (Portugal), eager to shape the future of AI? Large-scale language models are evolving from clever chatbots into powerful engines of scientific discovery.”
About Meridial: part of Invisible Technologies. See the full profile →
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Frequently asked questions
How do I apply for the Science Specialist (Fluent in Portuguese - Portugal) - Freelance AI Trainer Project role at Meridial?
Applications go through Meridial's own portal - HumanSourcer links to the listing and never collects applications or handles hiring. Meridial's access model is "Apply" (Join network / apply to projects). This listing was first seen here on July 19, 2026 and was still live at the last check.
Is the Science Specialist (Fluent in Portuguese - Portugal) - Freelance AI Trainer Project role at Meridial remote?
This role is listed for: Portugal.
What does the Science Specialist (Fluent in Portuguese - Portugal) - Freelance AI Trainer Project role at Meridial pay?
Meridial lists this role's pay as $8–$65/hr, quoted from the listing rather than estimated.
What kind of work is Science Specialist (Fluent in Portuguese - Portugal) - Freelance AI Trainer Project?
Research / analysis. Law, STEM, finance, coding, linguistics, safety and AI training
Is Meridial a legitimate AI-training platform?
Invisible-powered expert contractor network - and that relationship is rated "Confirmed" here because it can be checked against www.meridial.ai rather than taken on Meridial's word. Confidence describes how well the ownership is evidenced. It is not a rating of how the platform treats the people who work for it, which no public source covers reliably.
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