Science Specialist (Fluent in Portuguese - Brazil) - Freelance AI Trainer Project

3 months ago
Contract
Senior
Artificial Intelligence and Machine Learning
Meridial Marketplace, by Invisible

Meridial Marketplace, by Invisible

Meridial Marketplace, operated by Invisible Technologies, is a platform that connects independent contractors and domain experts with specialized AI training projects. It enables skilled individuals, including software developers, STEM experts, and professionals in various fields, to contribute their expertise in shaping advanced AI models. The platform facilitates remote participation in AI development by matching users with projects that require high-quality training data. Contractors can engage in tasks such as data annotation, safety checks, and writing domain tests, all tailored to their specific skills. Meridial Marketplace is part of a broader ecosystem that supports AI scaling for various sectors, including enterprises and governments, ensuring that AI systems are integrated into existing workflows effectively.

information technology & services
501-1000
Founded 2015

Description

  • Converse with the model on real-world and theoretical science questions across physical science, earth science, environmental science, chemistry, physics, astronomy, and scientific literacy.
  • Challenge the model on topics such as energy transformation, atomic structure, planetary motion, ecological systems, the water cycle, and scientific inquiry.
  • Verify factual accuracy and logical soundness in model responses.
  • Document failure modes and capture reproducible error traces to support model hardening.
  • Suggest improvements to prompt engineering and evaluation metrics.
  • Work through scientific scenarios in a way that demonstrates clear, metacognitive communication and shows the reasoning process.

Requirements

  • Fluency in Portuguese (Brazil) is required.
  • A bachelor’s, master’s, or PhD in a science field is ideal.
  • Experience in teaching, published work, lab or field research, or science communication projects is preferred.
  • Strong knowledge of physical science, earth science, environmental science, chemistry, physics, astronomy, and scientific literacy.
  • Ability to communicate clearly and show your work when explaining reasoning.
  • Willingness to work as an independent contractor in a remote role.
  • Ability to supply a secure computer and high-speed internet.
  • Mid- to senior-level experience is preferred.

Benefits

  • Pay range of $8 to $65 per hour, with the exact rate determined by experience, expertise, and geographic location.
  • Remote work.
  • Contract employment type.
  • No company-sponsored benefits such as health insurance or PTO, as this is an independent contractor role.

Interested in this position?

Apply directly on the company website

Apply Now

Similar Roles

Dermatologist (AI Evaluation)

Gramian Consultancy Group Professional Services

Gramian Consultancy is seeking India-based Dermatologists for a four-week remote contractor assignment evaluating dermatology images and AI-generated clinical content to improve healthcare AI reliability and safety.

5 hours, 53 minutes ago

AI Conversation Specialist - (Khaleeji/Gulf) Saudi Arabic

RWS Group 5K-10K Internet Software & Services

RWS is seeking freelance AI Business Conversation Analysts fluent in Saudi Arabic (Khaleeji Gulf) to conduct structured bilingual conversations that support the development and improvement of AI models in business and analytical domains.

1 day, 5 hours ago

Generative Audio Evaluation - Arabic (Qatar)

RWS Group 5K-10K Internet Software & Services

RWS is seeking remote, part-time Generative Audio Evaluation Specialists in Qatar/GCC to assess AI-generated audio and provide structured feedback that improves a generative audio model.

Generative AI
1 day, 5 hours ago

Generative Audio Evaluation - Arabic (UAE)

RWS Group 5K-10K Internet Software & Services

RWS is seeking remote UAE/GCC freelance Generative Audio Evaluation Specialists to assess AI-generated audio for video and text-to-audio tasks and provide structured feedback to improve model performance.

Generative AI
1 day, 5 hours ago

You're on a roll! Sign up now to keep applying.

Sign Up

Already have an account? Log in

Used by 14,729+ remote workers