Portuguese Language Data Contributor (Multimodal) – Freelance AI Trainer Project

Invisible Technologies Inc.; United States; Remote; USD 8,300 - 90,000; Full time

Job summary

Invisible Technologies seeks a Portuguese Language Specialist (Brazil) to help train AI models remotely. You will discuss language scenarios, test model outputs, and document errors to improve model reasoning.

Ideal candidates have a degree in Portuguese language or linguistics, and can clearly explain their reasoning. This is an entry-level contractor role with flexible hours and remote work.

Qualifications

• Degree in Portuguese language or linguistics ideal.
• Peer‑reviewed publications, teaching experience, or hands‑on linguistic analysis projects signal fit.
• Clear, metacognitive communication—showing your work—essential.

Responsibilities

• Converse with the model on language scenarios.
• Verify factual accuracy and logical soundness of outputs.
• Capture reproducible error traces and document failures.
• Suggest improvements to prompt engineering and evaluation metrics.

Skills

Portuguese (Brazil) language

Education

Portuguese language/linguistics degree

Job description

Are you a Portuguese (Brazil) language expert eager to shape the future of AI? Large‑scale language models are evolving from clever chatbots into powerful engines of linguistic discovery. With high‑quality training data, tomorrow’s AI can democratize world‑class education, keep pace with cutting‑edge research, and streamline communication for Portuguese speakers everywhere. That training data begins with you—we need your expertise to help power the next generation of AI.

We’re looking for Portuguese (Brazil) language specialists who live and breathe phonetics, morphology, syntax, semantics, pragmatics, and sociolinguistics of the Portuguese language. You’ll challenge advanced language models on topics like verb conjugation, noun‑adjective agreement, sentence structure, word order, accentuation, and colloquial expressions—documenting every failure mode so we can harden model reasoning.

On a typical day, you will converse with the model on language scenarios, verify factual accuracy and logical soundness, capture reproducible error traces, and suggest improvements to our prompt engineering and evaluation metrics.

A degree in Portuguese language, linguistics, or a closely related field is ideal; peer‑reviewed publications, teaching experience, or hands‑on linguistic analysis projects signal fit. Clear, metacognitive communication—“showing your work”—is essential.

We offer a pay range of $6-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.

Data Collection & Participation Notice:

This engagement involves participation in AI data collection and evaluation. Services include providing audio, video, image, and written inputs—including recordings of your voice and likeness—to support the development and refinement of AI systems.

Eligibility for this project requires that you are 18 years or older and agree to the applicable participant and consent agreements.

When providing services, submit content featuring only yourself. Avoid the inclusion of third‑party or sensitive personal information to maintain project security standards.

Job title: Portuguese Language Specialist (Brazil) – AI Trainer
Employment type: Contract
Workplace type: Remote
Seniority level: Entry Level