AI Data Annotator Role in Brazil

last updated December 31, 2025 12:30 UTC

Welo Data

HQ: New York, NY

  • OFF: Brazil
  • Full-Time
  • All Other Remote

Overview
We are looking for skilled, detail-focused individuals to join our team as AI Data Annotators. In this position, you will carry out rating and annotation tasks that play a crucial role in our AI development efforts. If you are precise, thorough, and eager to support the growth of AI technology, we encourage you to apply and become part of our team.

This is a temporary, part-time role that offers flexibility, with the possibility of extending the contract depending on performance and project demands.

Main Duties
• Complete rating and annotation assignments accurately and in accordance with project instructions
• Maintain strong accuracy and attention to detail across all tasks
• Meet project timelines and support team goals
• Communicate effectively in both Brazilian Portuguese and English

Project Details
Duration: 2 months, with potential for extension
Schedule: At least 15 to 20 hours per week
This is a freelance position, and workload depends on project requirements, so weekly hours may fluctuate.
Employment Type: Freelance/Independent Contractor
Location: Remote
Language: Brazilian Portuguese

By applying, you will join our Freelance community, giving you access to various projects that match your skills and availability. You will contribute to the current project while becoming part of a dynamic, collaborative network. This is a valuable opportunity to improve global user experiences and make meaningful use of your language expertise.

Qualifications
• Native-level proficiency in Brazilian Portuguese
• Linguistic ability equivalent to ILR Level 5 or CEFR C2
• Strong English skills for understanding instructions and communicating with the team
• Availability to commit 15–20 hours per week
• Excellent attention to detail and accuracy
• Ability to conduct necessary research efficiently and work within tight timeframes
• A reliable computer and stable internet connection
• Willingness to sign a Non-Disclosure Agreement to ensure client confidentiality

When you join Welocalize, you gain opportunities to advance your career, including:
• Consistent workloads and long-term collaboration when applicable
• Professional growth through engaging projects that support ongoing learning
• Experience working with multicultural, global teams and a wide range of content types
• Access to support from our Community team six days a week, 24 hours a day

If this role interests you, please apply below.

Welocalize is a trusted global transformation partner that helps brands reach, connect with, and grow international audiences. We provide multilingual content transformation services—including translation, localization, and adaptation—in more than 250 languages, supported by a network of over 400,000 in‑country linguistic experts. We also deliver high-quality training data solutions for NLP-driven machine learning by combining advanced technology with human expertise to collect, annotate, and evaluate all types of content. Our teams operate across North America, Europe, and Asia, serving global clients in the markets most important to them.

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