Marketing Documents Specialist (Japanese, Remote Contract)

About OpenTrain

OpenTrain is the #1 platform for finding and building careers in AI training and data labeling. We connect skilled contributors with projects that help shape how modern AI systems behave and grow durable freelance careers in a fast-growing industry.

Why AI training and data-labeling work matters

AI models learn from high-quality examples prepared and reviewed by people. Tasks like translating and polishing marketing documents, rating responses, and providing structured feedback directly improve model outputs and user experiences.

This kind of work is often 100% remote, flexible, and accessible to professionals with domain expertise — a great way to apply marketing skills to cutting-edge AI projects.

• Remote, flexible work you can do from anywhere with a computer and internet.
• Contribute directly to how AI systems understand language and brand tone.

The role — Marketing Documents Specialist (Japanese)

OpenTrain is recruiting a Marketing Documents Specialist (Japanese) on a contract, part-time basis to support AI training and evaluation through high-quality marketing content review and creation. This role requires native-level Japanese and strong marketing documentation experience.

Hours: 20+ hours/week. Employment type: Contractor, Part-time. Pay range: $30–$70 per hour. Work is remote, with a preference for candidates in the US or those with strong US–Japan business context understanding.

• Support AI projects that use documents as training data (text generation, summarization, translation/localization, evaluation/rating, RLHF).
• Tools: Microsoft Word, Excel, PowerPoint (proficiency required).

What you'll do

• Create, review, and refine marketing documents, spreadsheets, and presentations in Japanese.
• Translate and adapt marketing content for linguistic and cultural accuracy for Japanese-speaking audiences.
• Provide high-quality input and structured feedback that supports AI model training and evaluation.
• Analyze marketing materials for clarity, effectiveness, and brand alignment.
• Document project outcomes and contribute feedback that improves AI learning and documentation practices.
• Communicate clearly with both technical and non-technical stakeholders in projects.

Requirements

• Native-level Japanese language proficiency (required).
• Strong written and verbal communication skills in Japanese.
• Bachelor’s degree or higher.
• Minimum 3 years of experience in marketing with hands-on marketing documentation.
• Proficiency in Microsoft Word, Excel, and PowerPoint.
• Attention to detail, strong analytical skills, and ability to meet tight deadlines.
• Comfort working remotely in a collaborative environment and coordinating with distributed teams.
• Located in the US or demonstrate a strong understanding of US–Japan business contexts.

Helpful background (nice to have)

Experience at Fortune 500 companies or exposure to global marketing environments can be advantageous. Familiarity with AI, digital transformation, or technology-driven marketing initiatives is also beneficial.

• Previous work on localization or marketing for Japanese markets.
• Experience contributing to AI training, evaluation, or documentation projects.

How to apply

Create or sign in to your OpenTrain account to apply. When you apply, include a brief summary of relevant marketing documentation work, examples or portfolio items (if available), and your availability for 20+ hours/week.

OpenTrain will review applications and contact qualified candidates for a short remote interview and sample task to confirm fit and style alignment.