Chinese Mandarin PDF Bounding Box Annotator

About OpenTrain

OpenTrain AI is the hiring and contracting organization for this role. OpenTrain is the #1 platform for finding and building careers in AI training and data labeling, helping people discover opportunities to teach and improve artificial intelligence.

Creating an OpenTrain account is free, and candidates can apply in minutes. This opportunity is structured as part-time contract work.

About AI Training and Document Annotation

AI training is the human side of building artificial intelligence. People prepare and review examples that help modern AI systems understand documents, images, language, and other information.

In document annotation, contributors identify relevant areas of a file and apply consistent labels. Careful annotation helps AI models recognize and interpret document content more accurately.

The Role

As a Chinese Mandarin PDF Bounding Box Annotator, you will create bounding boxes on PDF documents and assign the correct class labels. You will need to interpret annotation guidelines accurately and apply them consistently across general documents.

This is an intermediate-level, part-time contractor opportunity requiring less than 20 hours per week. The pay range is $10 to $15 USD per hour.

• Role type: Part-time contractor
• Workload: Less than 20 hours per week
• Pay: $10-$15 USD per hour
• Subject matter: General documents
• Eligible locations: Malaysia, Hong Kong, and Taiwan

What You'll Do

Your work will focus on accurately marking document content and organizing it with the required labels. Consistency and attention to detail are important because annotated examples are used to support the development of AI systems.

• Create bounding boxes on PDF documents
• Assign the correct class labels to document items
• Follow annotation guidelines accurately
• Apply consistent judgment across general document data
• Communicate in English when reviewing guidelines and project instructions

Requirements

This opportunity is intended for native Chinese Mandarin speakers with previous experience creating bounding boxes and classifying items. You must also be able to understand project guidelines and communicate in English at a B1 or B2 proficiency level.

• Native Chinese Mandarin speaker
• Experience creating bounding boxes
• Experience with item classification
• English proficiency at B1 or B2 level
• Ability to follow annotation guidelines accurately
• Based in Malaysia, Hong Kong, or Taiwan

Why Work in AI Training

AI training is a fast-growing area of tech where human contributors directly influence how advanced AI systems learn and behave. Many projects offer flexible schedules, making this work suitable for people balancing studies, another job, or family commitments.

By annotating documents carefully, you contribute to the data quality behind the next generation of AI tools while building experience in an expanding field.

• Flexible part-time work
• Opportunity to contribute to cutting-edge AI development
• Practical experience in data annotation and labeling
• A pathway to build skills in the growing AI training industry

How to Apply

Create a free OpenTrain account and apply through OpenTrain. Be prepared to demonstrate your Mandarin fluency, English communication ability, bounding box experience, and understanding of accurate classification.

• Confirm that you are based in Malaysia, Hong Kong, or Taiwan
• Highlight your PDF or document annotation experience
• Show your ability to follow detailed guidelines
• Apply for this part-time contractor opportunity through OpenTrain