Mandarin Translation & Interpretation Specialist

About OpenTrain

OpenTrain is the #1 platform for building careers in AI training and data labeling. We help language experts find and grow freelance work that directly shapes how AI systems understand and produce language.

As the hiring organization for this role, OpenTrain offers a single place to build a verified portfolio of translation and annotation work that helps you secure more projects over time.

About AI training and language work

AI training (also called data labeling or annotation) is the human side of building intelligent systems. For language work, human translators and reviewers provide the accurate, culturally informed examples that models learn from—everything from raw translations to localization decisions and summarized content.

This role contributes directly to model quality: your translations, edits, and feedback will be used as structured training data so AI better handles Mandarin business contexts.

The role

OpenTrain is recruiting a Mandarin Language Expert to perform translation, interpretation, localization, and quality review for business-oriented text. This is a remote, part-time contractor role focused on text-based tasks that improve model performance in Mandarin and English.

The position is entry-level friendly so long as you bring strong real-world Mandarin translation and interpretation skills and professional attention to detail.

What you'll do

• Translate and interpret between Mandarin and English across business documents, presentations, and marketing materials.
• Review, edit, and proofread written materials for linguistic accuracy, tone, and cultural relevance.
• Support localization efforts to adapt content for Mandarin-speaking audiences.
• Facilitate clear communication between teams and stakeholders, and act as a cultural liaison for cross-cultural nuances.
• Maintain messaging consistency and high standards across assigned materials.

Requirements

You must have hands-on experience with translation, interpretation, or localization in professional settings and be comfortable working independently in a remote environment under deadlines.

• Native or near-native Mandarin (zh) proficiency and fluency in English (en) for business contexts.
• Relevant professional, academic, or demonstrable language expertise in Mandarin translation and interpretation.
• Strong written communication, careful attention to detail, and proven proofreading skills.
• Cultural sensitivity and the ability to adapt messaging for Mandarin-speaking audiences.
• Comfort delivering high-quality work under tight deadlines; entry-level contributors with strong skills are welcome.

Schedule, pay, and task details

This is part-time contractor work with a time commitment of less than 20 hours per week. The role is fully remote and available worldwide.

Pay is on an hourly basis in USD with rates between $45 and $95 per hour. Tasks are text-based and include translation/localization and text summarization annotation types.

• Employment type: Contractor, Part-time.
• Data type: TEXT. Labeling tasks: TRANSLATION_LOCALIZATION and TEXT_SUMMARIZATION.
• Worldwide applicants accepted; work remotely with flexible scheduling.

How it works and how to apply

Create or sign in to your OpenTrain profile, complete your language and experience details, and apply through the project listing. Building your OpenTrain profile helps you showcase verified translation work and qualify for future projects.

If selected, you'll receive instructions for tasks, guidelines for translation and localization, and feedback channels to help you produce training-quality outputs.

• Prepare examples of translation/localization work or describe relevant experience on your profile.
• Applications are reviewed by OpenTrain; selected contributors will be briefed on project guidelines and quality standards.