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Language Data Annotation Expert (Portuguese)

Review and annotate Portuguese text, assess translations, and improve language data used in AI projects. This part-time contractor role pays $30 to $65 per hour and requires professional Portuguese and fluent English.

Also available in: Português do Brasil

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OpenTrain AI

Translation & Localization

Remote Hourly · $30–$65/hr

$30–$65/hr

Compensation

Contract, part-time

Engagement

Remote

Location

Jul 17, 2026

Posted

Open in 52 countries

United States
+ more
  • Algeria
  • Argentina
  • Austria
  • Bahrain
  • Bangladesh
  • Belgium
  • Brazil
  • Canada
  • Chile
  • Colombia
  • Denmark
  • Egypt
  • France
  • Germany
  • Ghana
  • Greece
  • India
  • Indonesia
  • Italy
  • Japan
  • Jordan
  • Kazakhstan
  • Kenya
  • Kuwait
  • Kyrgyzstan
  • Lebanon
  • Malaysia
  • Mexico
  • Morocco
  • Netherlands
  • Nigeria
  • Oman
  • Pakistan
  • Palestine
  • Peru
  • Philippines
  • Portugal
  • Qatar
  • Saudi Arabia
  • Singapore
  • South Africa
  • Spain
  • Sri Lanka
  • Switzerland
  • Taiwan
  • Thailand
  • Tunisia
  • United Arab Emirates
  • United Kingdom
  • United States
  • Uzbekistan
  • Vietnam

The work

You will help prepare and review Portuguese text data for AI and machine learning projects. The work combines language annotation, translation review, quality checks, and feedback on how Portuguese is used.

You will work independently in a remote setting, document annotation processes, suggest workflow improvements, and share insights about language nuances and regional variations.

  • Annotate, label, and review Portuguese text data.
  • Check grammar, syntax, linguistic accuracy, and consistency.
  • Review translations and provide feedback on language usage and data quality.
  • Support data curation workflows and project-specific language resources.
  • Document annotation processes and suggest improvements.

What it pays and takes

This role is open to candidates in the following countries:

  • Argentina, Austria, Bangladesh, Bahrain, Belgium, Brazil, Canada, Chile, Colombia, Denmark, Egypt, France, Germany, Ghana, Greece, India, Indonesia, Ireland, Italy, Japan, Jordan, Kazakhstan, Kenya, Kuwait.
  • Lebanon, Malaysia, Mexico, Morocco, Netherlands, Nigeria, Oman, Pakistan, Peru, Philippines, Poland, Portugal, Qatar, Saudi Arabia, Singapore, South Africa, South Korea, Spain, Sri Lanka, Switzerland, Taiwan, Thailand, Tunisia.
  • Türkiye, United Arab Emirates, United Kingdom, United States, Uzbekistan, Vietnam, and Zambia.

How it works

Apply on OpenTrain with your resume, then complete the application on the hiring site.

About AI training work

AI training work is the human side of building artificial intelligence. People prepare and review examples, including text and translations, so AI systems can learn language patterns and produce more useful results.

Experienced language specialists are needed because accurate annotation depends on grammar knowledge, context, regional variation, and consistent judgment.

Requirements

  • Experience: Intermediate level
  • Languages: Portuguese, English

How to apply

  1. Apply here on OpenTrain. You create a free account, and we send you to the hiring platform.
  2. Complete your application on the hiring platform.

Ready to apply?

Create a free OpenTrain account and apply for this role in minutes.

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