QA Annotator / Quality Reviewer
Its $15/hr is below the $30/hr median of the Data Annotation & Labeling roles open now, whose typical pay runs $15–$105/hr. How that pay moves week by week is in our research on Data Annotation & Labeling work.
Half of all Data Annotation & Labeling roles come down within 18 days of being listed, and 42.5% are still up after four weeks. This one was posted 351 days ago.
About the role
The Work
You will review and score Portuguese-language data and AI outputs for quality, correctness, and alignment with detailed guidelines. The work includes checking completed annotations and improving the accuracy of text data.
You may also review occasional sensitive content and suggest better guidelines or workflows based on recurring issues.
- Audit completed labels and correct errors
- Classify text and tag entities and sentiment
- Review and score AI outputs
- Write concise, structured reviewer notes
- Suggest improvements to guidelines and workflows
What It Pays And Takes
This is project-based contract work for an intermediate-level contributor. A bachelor’s degree or higher is preferred, and you should be comfortable following detailed instructions and reviewing occasional sensitive content.
- $15 per hour, paid in USD
- Part-time work for less than 20 hours per week
- Flexible hours on a project-based contract
- Open to candidates who reside in Portugal
- Professional fluency in European Portuguese at C1 level
- English proficiency at B2 level or higher
- Proven experience in data annotation or quality assurance
- Strong attention to detail and clear, structured written feedback
How It Works
Apply on OpenTrain, where the employer reviews applications.
About AI Training Work
AI training work uses human-reviewed examples to help artificial intelligence understand language, follow instructions, and produce better answers. People with strong language skills and careful review experience help shape how these systems perform.
Where you can work
This role is 100% remote, for applicants located in Portugal.
From OpenTrain AI's job posting, checked 29 Oct 2026.
About OpenTrain AI
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How it pays: Stripe payouts to your bank, in the 120 countries its payout docs list.
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