Korean Marketing Document Specialist (Contract)

About OpenTrain

OpenTrain is the #1 platform for finding and building careers in AI training and data labeling. It helps people start and grow freelance careers teaching AI by consolidating opportunities, building a unified portfolio, and enabling fast, easy applications.

Working through OpenTrain puts you on the human side of AI development — contributors directly shape how models behave by providing the real-world examples and feedback that modern AI systems learn from.

About AI training and this work

AI training (also called data labeling or human feedback) is the human work that teaches models to understand language, follow instructions, and produce useful outputs. For marketing-focused projects, contributors supply real marketing content, review model outputs, and rate or refine examples so models learn culturally accurate, professional responses.

This role focuses on Korean-language marketing materials: documents, presentations, and spreadsheets that help models learn how real marketers write, organize, and critique content.

The role

OpenTrain is recruiting a Marketing Document Specialist with native-level Korean to create, edit, and evaluate marketing documents used for AI training. This is a contractor role open to candidates based in the United States; work is remote and hours are flexible.

You will apply real-world marketing experience — including Fortune 500 practices — to produce high-quality Korean marketing materials and provide written and verbal feedback that helps models perform marketing tasks accurately and professionally.

• Employment type: Contractor.
• Location: United States only (remote).
• Language: Native-level Korean required.

What you'll do

• Create, edit, and review marketing documents, presentations, and spreadsheets in Korean using Microsoft Word, Excel, and PowerPoint.
• Generate, analyze, and refine content that will be used to train and evaluate AI models on marketing tasks.
• Apply marketing best practices and Fortune 500 workflows to ensure accuracy, clarity, and professional formatting.
• Collaborate with a team to ensure cultural relevance and appropriate branding across materials.
• Provide expert written and verbal feedback to optimize model behavior for Korean-language marketing scenarios.

Requirements

• Native-level proficiency in Korean with excellent written and verbal communication.
• 3+ years of professional marketing experience creating and managing marketing documents.
• Expertise in Microsoft Word, Excel, and PowerPoint.
• Experience working with or for Fortune 500 companies in a marketing capacity.
• Deep understanding of marketing terminology, workflows, and documentation standards.
• Bachelor's degree or higher.
• Must be based in the United States and able to work as a contractor.

Helpful background

• Prior experience with AI, data annotation, or technology-driven projects.
• Familiarity with U.S.-based Korean business environments or cross-cultural marketing.
• Demonstrated ability to explain complex marketing concepts clearly to diverse audiences.

Compensation, workload, and logistics

This is a contract project with a flexible schedule. Hourly pay ranges from $10 to $55 USD; candidates should indicate their availability when applying.

Work involves document-based data collection, evaluation/rating, and text generation tasks that will feed AI training datasets.

• Pay: $10–$55 per hour (hourly contractor rate).
• Data types: Document-based tasks; label types include data collection, evaluation/rating, and text generation.
• (details provided during onboarding).

How to apply

Create a free OpenTrain account to apply and build a profile that showcases your marketing and language experience. Your application should include your resume, examples of marketing documents or presentations (if available), and a brief note about your availability.

OpenTrain and the project team will review applications and share onboarding details with selected candidates. Be prepared to demonstrate Korean writing skill and discuss past Fortune 500 marketing work.

• Include availability and your preferred hourly rate within the posted $10–$55 range.
• Applications from U.S.-based candidates only; fluency in Korean is required.