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Remote AI training and data labeling jobs in Japan

Find remote AI training and data labeling jobs open to applicants in Japan.

  • 100% remote
  • Flexible hours
  • Hourly / per-task pay
  • 214 open roles

Open Source Software Engineer for AI Training

Build and improve open source software for AI training, including feature work, bug fixes, refactoring, code review, and technical explanations. Remote work takes less than 20 hours per week, with $50 to $100 per hour equivalent, paid per task that meets project specifications.

Coding & Software
Computer Code Programming
Remote · United Arab Emirates, Argentina, Austria +49 more
English
Part-time · Flexible
Mid-Senior level
Per task · $50–$100/hr equivalent

Posted Sep 15, 2026

Big Data Engineer

Remote, part-time contract work for a Big Data Engineer building Python pipelines, distributed data systems, and reliable databases. Pay is $30 to $80 per hour, with applications open across 50 countries.

Coding & Software
Computer Code Programming
Remote · United Arab Emirates, Argentina, Austria +49 more
English
Part-time · Flexible
Mid-Senior level
Hourly · $30–$80/hr

Posted Sep 15, 2026

AI Behavioral Analysis Expert

Analyze behavioral cues in text, audio, and video, create detailed annotations, and evaluate AI-generated responses. This part-time contractor role pays $20 to $70 per hour and is open across several regions.

Generative AI & RLHF
Text
Remote · United Arab Emirates, Argentina, Austria +49 more
English
Part-time · Flexible
Entry level
Hourly · $20–$70/hr

Posted Sep 15, 2026

SaaS Revenue Operations And CRM Systems Specialist

Analyze connected CRM, billing, and ticketing systems, resolve operational inconsistencies, and document complex revenue decisions. This remote contractor role pays $45 to $90 per hour.

General Annotation
Document
Remote · United Arab Emirates, Argentina, Austria +49 more
English
Part-time · Flexible
Entry level
Hourly · $45–$90/hr

Posted Sep 15, 2026

Bilingual Mental Health Expert

Review AI-generated psychological content, case studies, assessments, and conversations using mental health expertise. The role pays $100 to $200 per hour and requires advanced English plus professional fluency in at least one listed language.

Medical & Health
Text
Remote · France, India, Japan +2 more
French, Malay +15 more
Part-time · Flexible
Mid-Senior level
Hourly · $100–$200/hr

Posted Sep 15, 2026

Equity Research AI Training Expert

Review equity research datasets, financial models, earnings analysis, and valuation work to improve AI systems. This remote contractor role pays $175 to $300 per hour and requires deep equity research expertise.

Legal & Finance
Document
Remote · United Arab Emirates, Argentina, Austria +49 more
English
Part-time · Flexible
Mid-Senior level
Hourly · $175–$300/hr

Posted Sep 14, 2026

Investment Banking AI Training Expert

Use investment banking judgment to review financial research, valuation models, transaction analysis, and pitchbook materials for AI training. This remote contractor role pays $175 to $300 per hour and is open in listed countries.

Legal & Finance
Document
Remote · United Arab Emirates, Argentina, Austria +49 more
English
Part-time · Flexible
Mid-Senior level
Hourly · $175–$300/hr

Posted Sep 14, 2026

Code Generation And Model Evaluation Engineer

Build and review coding tasks, debug software, and evaluate AI-generated code across major programming languages. Pay is $50 to $100 per hour equivalent, paid per task that meets the project specifications, with less than 20 hours per week.

Coding & Software
Computer Code Programming
Remote · United Arab Emirates, Argentina, Austria +49 more
English
Part-time · Flexible
Mid-Senior level
Per task · $50–$100/hr equivalent

Posted Sep 14, 2026

Video and Audio AI Data Reviewer (English)

Review short video and audio clips, assess AI-generated descriptions, and provide clear feedback that improves labeling quality. This part-time contract role is open to fluent English speakers in selected countries and does not require prior AI experience.

Image & Video Annotation
Video
Remote · United Arab Emirates, Argentina, Austria +49 more
English
Part-time · Flexible
Entry level
Hourly · $8–$10/hr

Posted Sep 14, 2026

Physicist (PhD), Atomic, Molecular & Optical Physics

Review AI systems on advanced atomic and optical physics, including ytterbium calculations and sigma versus pi transitions. Pay is $100 to $200 per hour for less than 20 hours per week.

Generative AI & RLHF
Document
Remote · United States
English
Part-time · Flexible
Mid-Senior level
Hourly · $100–$200/hr

Posted Sep 12, 2026

Evaluator (Cantonese)

Review Cantonese text, speech, and AI model responses for accuracy and fluency in a part-time contract role paying $30 to $40 per hour. Apply through OpenTrain, then complete the application on the hiring site.

Translation & Localization
Document
Remote · United Arab Emirates, Argentina, Austria +49 more
Cantonese
Part-time · Flexible
Entry level
Hourly · $30–$40/hr

Posted Sep 12, 2026

Industrial Design CAD Question Writer

Review multi-part FreeCAD assemblies and write precise technical questions with exact answers. This remote contract role pays $40 to $80 per hour and requires CAD and industrial design, mechanical engineering, or aerospace knowledge.

Writing & Editing
Document
Remote · United Arab Emirates, Argentina, Austria +49 more
English
Part-time · Flexible
Mid-Senior level
Hourly · $40–$80/hr

Posted Sep 11, 2026

FreeCAD Engineering Question Author

Create precise, verifiable engineering questions from multi-part FreeCAD assemblies. This part-time contract role pays $40 to $80 per hour and requires strong mechanical CAD knowledge.

Writing & Editing
Document
Remote · United Arab Emirates, Argentina, Austria +49 more
English
Part-time · Flexible
Mid-Senior level
Hourly · $40–$80/hr

Posted Sep 11, 2026

Aerospace CAD Question Authoring Expert

Review complex aerospace assemblies and write precise questions and answers about design features, functions, and component relationships. This remote, part-time contractor role pays $40 to $80 per hour.

Generative AI & RLHF
Document
Remote · United Arab Emirates, Argentina, Austria +49 more
English
Part-time · Flexible
Mid-Senior level
Hourly · $40–$80/hr

Posted Sep 11, 2026

Mechanical Assembly CAD AI Training Expert

Review FreeCAD-format mechanical assemblies and create precise question-and-answer sets for AI training. This part-time contractor role pays $40 to $80 per hour and requires strong mechanical CAD knowledge.

General Annotation
Document
Remote · United Arab Emirates, Argentina, Austria +49 more
English
Part-time · Flexible
Mid-Senior level
Hourly · $40–$80/hr

Posted Sep 11, 2026

Business Analyst (Turkish)

Review Turkish and English content that helps language models improve. Research claims, summarize material, solve reasoning tasks, and provide clear feedback in a remote role requiring 20 or more hours each week.

Generative AI & RLHF
Text
Remote · Worldwide
Turkish, English
Part-time · Flexible
Entry level

Posted Sep 11, 2026

Multilingual LLM Data Analyst (Norwegian)

Help improve large language models by answering analytical questions, checking written claims, creating reasoning scenarios, and explaining your decisions in English and Norwegian. This remote contractor role requires 20 or more hours per week.

Generative AI & RLHF
Text
Remote · Worldwide
Norwegian, English
Part-time · Flexible
Entry level

Posted Sep 11, 2026

AI Language Model Analyst (Japanese)

Review Japanese and English content, solve analytical questions, and give clear feedback that helps improve AI language models. This worldwide contract role requires 20 or more hours each week and does not require prior AI training experience.

Generative AI & RLHF
Text
Remote · Worldwide
Japanese, English
Part-time · Flexible
Entry level

Posted Sep 11, 2026

Multilingual LLM Data Analyst (French)

Help improve language models by researching claims, solving analytical questions, creating reasoning examples, and reviewing French and English responses. This remote, entry-level contract requires at least 20 hours per week.

Generative AI & RLHF
Text
Remote · Worldwide
French, English
Part-time · Flexible
Entry level

Posted Sep 11, 2026

AI Content Analyst (Spanish)

Review and improve AI-generated answers using Spanish and English, online research, logical reasoning, and clear written feedback. This remote contractor role requires 20 or more hours each week and some overlap with US hours.

Generative AI & RLHF
Text
Remote · Worldwide
Spanish, English
Part-time · Flexible
Entry level

Posted Sep 11, 2026

Visual Content Curation and Evaluation Expert

Review curated image collections for artistic quality, originality, composition, lighting, color, styling, and technical execution. This remote contractor role pays $21 to $70 per hour and requires strong visual judgment and written feedback skills.

Image & Video Annotation
Image
Remote · United Arab Emirates, Argentina, Austria +49 more
English
Part-time · Flexible
Entry level
Hourly · $21–$70/hr

Posted Sep 9, 2026

Business Data Quality Analyst

Review business datasets and documents for accuracy, completeness, privacy, and consistency. This remote contract role pays USD $31 to $60 per hour and is open to candidates in listed countries.

General Annotation
Document
Remote · United Arab Emirates, Argentina, Austria +49 more
English
Part-time · Flexible
Entry level
Hourly · $31–$60/hr

Posted Sep 9, 2026

CAD and Simulation Engineer for AI Training

Support AI training by creating and reviewing CAD models, simulation models, calculations, schematics, and engineering documentation. This remote 8-week contract requires 20 to 40 hours weekly and at least 10 years of relevant experience.

General Annotation
Document
Remote · Worldwide
English
Part-time · Flexible
Entry level

Posted Sep 8, 2026

Physicist

Solve advanced physics problems and create clear, reproducible derivations for AI training. This remote contractor role pays $100 to $200 per hour and requires less than 20 hours per week.

General Annotation
Document
Remote · United States
English
Part-time · Flexible
Mid-Senior level
Hourly · $100–$200/hr

Posted Sep 8, 2026

Software Engineering AI Evaluation Specialist

Evaluate AI models on complex software engineering problems by building coding environments, reference solutions, and expert reviews. Pay is $50 to $100 per hour equivalent, paid per task that meets the project specifications.

Coding & Software
Computer Code Programming
Remote · United Arab Emirates, Argentina, Austria +49 more
English
Part-time · Flexible
Mid-Senior level
Per task · $50–$100/hr equivalent

Posted Sep 7, 2026

Transcription Expert (Mandarin)

Transcribe and review Mandarin and English audio to help train AI systems. This remote role offers $20 to $30 per hour equivalent, paid per task, with a 20+ hour weekly commitment.

Audio & Speech
Audio
Remote · United Arab Emirates, Argentina, Austria +49 more
Chinese, English
Part-time · Flexible
Entry level
Per task · $20–$30/hr equivalent

Posted Sep 7, 2026

Audio Transcription Expert (Cantonese)

Transcribe and annotate Cantonese and English audio, review automated transcripts, and create time-stamped files. Pay is $20 to $35 per hour equivalent, paid per task.

Audio & Speech
Audio
Remote · United Arab Emirates, Argentina, Austria +49 more
Cantonese, English
Part-time · Flexible
Entry level
Per task · $20–$35/hr equivalent

Posted Sep 7, 2026

Computational Fluid Dynamics AI Evaluation Engineer

Evaluate AI-generated answers to advanced CFD problems involving meshing, turbulence, heat transfer, multiphysics, and solver setup. This remote contractor role pays $50 to $150 per hour equivalent, paid per task that meets the project specifications.

Generative AI & RLHF
Text
Remote · United Arab Emirates, Argentina, Austria +49 more
English
Part-time · Flexible
Mid-Senior level
Per task · $50–$150/hr equivalent

Posted Sep 7, 2026

Audio Transcription Expert (Dutch)

Transcribe and review Dutch and English audio, capture linguistic details, and support AI training. The role offers $25 to $30 per hour equivalent, paid per task, with 20+ hours per week.

Audio & Speech
Audio
Remote · United Arab Emirates, Argentina, Austria +49 more
Dutch, English
Part-time · Flexible
Entry level
Per task · $25–$30/hr equivalent

Posted Sep 7, 2026

What this work can involve

AI training is the human work used to prepare and review examples for artificial-intelligence systems. Depending on the assignment, work may involve labeling images or video, transcribing or recording audio, writing or rating model responses, evaluating search results, translating text, reviewing code, or applying subject-matter knowledge. For roles open to applicants located in Japan, read each posting to understand the specific task and requirements.

  • Possible work areas include image and video annotation, language tasks, search evaluation, response review, and code review.
  • The live posting explains the responsibilities and eligibility for that particular assignment.

How hiring works through OpenTrain

OpenTrain is the hiring organization for the public roles available through OpenTrain. Candidates apply through OpenTrain, and successful candidates may be placed or referred to the client whose project they will support. Because eligibility and other terms can differ by assignment, use the individual posting as the source for role-specific information.

  • Apply through OpenTrain for the role you are considering.
  • Review the posting carefully for its applicant-location rules and other requirements.

Frequently asked questions

What can this work involve?
Remote AI training and data labeling work can involve preparing or reviewing examples for artificial-intelligence systems. Depending on the assignment, tasks may include annotating images or video, transcribing or recording audio, writing or rating model responses, evaluating search results, translating text, reviewing code, or applying subject-matter knowledge. The individual posting explains the actual responsibilities.
Where can I find role-specific details?
The individual live posting is the only source of truth for eligibility, responsibilities, qualifications, experience, pay, hours, schedule, location rules, and client-specific requirements. Check each posting to confirm whether applicants located in Japan can apply and to understand the details of that role.
How does hiring work through OpenTrain?
OpenTrain is the hiring organization for roles available through OpenTrain. Candidates apply through OpenTrain. OpenTrain may place or refer successful candidates to the client whose project they will support, while the individual posting provides the role-specific information.