Freelance Data Annotator (Portugese) (m/f/d)

For an AI lab we are looking for a Portugese speaking data annotation specialist:

Annotation is what helps AI make sense of the world. As a QA Annotator, you may be invited to take part in online projects such as rating AI-generated content, evaluating factual accuracy, or comparing responses — when projects are available.

This flexible role accommodates both experts seeking part-time engagement (minimum few hours/week) and those interested in full-time opportunities

Responsibilities:

• Carefully review provided data (text, images, or videos).
• Review tasks submitted by the Annotators team and ensure quality assurance/quality control.
• Label or classify content based on project guidelines.
• Identify and flag factually incorrect, sensitive, inappropriate, or unclear material.

• You hold or are currently pursuing a Bachelor’s, Master’s or PhD Degree in any professional field.
• You have advanced proficiency in Portugese (C1) and at least English (B2), both written and spoken.
• Experience in QA, editing, teaching, consulting, or reviewing work in a professional or academic setting, including mentoring or training others (e.g., onboarding junior staff, conducting workshops, reviewing peer work).
• Excellent written communication and ability to give clear, structured and constructive feedback
• Proven experience in annotation or data labeling.
• Attention to details and ability to understand and follow instructions.
• Genuine interest in technology and artificial intelligence.