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Remote AI training and data labeling jobs in Japan

Looking for remote AI training or data labeling work while located in Japan? OpenTrain is the hiring organization for roles that explicitly accept applicants located in Japan; candidates apply through OpenTrain, and OpenTrain may place or refer successful candidates to the client whose project they will support. Review each live posting carefully because eligibility, hours, qualifications, and pay are specified per role.

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

Scala Developer for AI/LLM Training (Remote Contract)

Join OpenTrain AI as a remote Scala developer on a long-term (6+ month) AI/LLM training project, writing and debugging Scala code to create training datasets; flexible 20–40 hrs/week (preferred 25–40) at $9.28/hr. Apply with a proposal and complete a Scala coding assessment as the next step.

Coding & Software
Computer Code Programming
Remote · Worldwide
Part-time · Flexible
Entry level
Hourly · $9.28/hr

Posted Jun 22, 2024

C Programmer, Remote AI Training (Long-Term, Part-Time)

Join a long-term, remote AI training project creating and debugging C code for model training; 20–40 hrs/week, contractor role paying $8.85/hr with a required C coding assessment after application. Candidates need 2+ years of C development experience and a relevant degree.

Coding & Software
Computer Code Programming
Remote · Worldwide
Part-time · Flexible
Entry level
Hourly · $8.85/hr

Posted Jun 22, 2024

Kotlin Developer, AI Training (Long-Term, Remote)

Join OpenTrain AI to create and debug Kotlin code used to train next-generation AI models; remote, long-term contract work requiring 20–40 hours/week and at least 2 years of Kotlin experience. Paid at $9.50/hr and includes a coding assessment after application.

Coding & Software
Computer Code Programming
Remote · Worldwide
Part-time · Flexible
Entry level
Hourly · $9.5/hr

Posted Jun 22, 2024

C# Developer, AI Training & Code Annotation

Join a remote, long-term AI training project writing and debugging C# code for model training datasets; 20–40 hours/week at $9/hr. Apply to receive a C# coding assessment and help improve AI code quality by creating accurate, optimized examples.

Coding & Software
Computer Code Programming
Remote · Worldwide
Part-time · Flexible
Entry level
Hourly · $9/hr

Posted Jun 22, 2024

Go Developer, Code Writing & AI-Training Project

Join OpenTrain to write and debug Go code that trains AI models. Long-term remote contract (20–40 hrs/week, 6+ months) paying $9/hr — requires a CS degree, fluent English, and at least 2 years of professional Go experience.

Coding & Software
Computer Code Programming
Remote · Worldwide
Part-time · Flexible
Entry level
Hourly · $9/hr

Posted Jun 22, 2024

Swift/iOS Code Reviewer (QA), 30–40 hrs/week

OpenTrain AI is hiring an experienced Swift/iOS developer to review and QA Swift code used for AI model training; 30–40 hrs/week, 3–6 month contract, remote, USD $14/hr. Applicants must have 5+ years Swift experience and B2+ English (state your CEFR level).

Coding & Software
Computer Code Programming
Remote · Worldwide
Part-time · Flexible
Intermediate level
Hourly · $14/hr

Posted Jun 18, 2024

Python AI Data Trainer, Coding & Debugging (20–40 hrs/wk)

Join OpenTrain AI as a Python Data Trainer to create and debug Python code that teaches models; 20–40 hours/week, 3–6 month contract at $8/hr. Ideal for Python developers with 2+ years' experience and strong English.

Coding & Software
Computer Code Programming
Remote · Worldwide
Part-time · Flexible
Intermediate level
Hourly · $8/hr

Posted Jun 18, 2024

Swift iOS Developer, LLM Training

Join OpenTrain AI to create coding prompts and model responses that teach LLMs to write and understand Swift; part-time contractor work (20+ hrs/week) at $12/hr. Requires strong Swift/iOS experience (2+ years) and excellent English.

Coding & Software
Text
Remote · Worldwide
Part-time · Flexible
Intermediate level
Hourly · $12/hr

Posted May 17, 2024

Classify People in Dashcam Images

Entry-level, part-time contract to label 100 dashcam images for presence of people; remote and worldwide, using Label Studio for a fixed price of $5.95.

Image & Video Annotation
Image
Remote · Worldwide
Part-time · Flexible
Entry level
Fixed price · $5.95

Posted May 4, 2024

What this work can involve

Work labeled for applicants in Japan covers tasks that help teach and evaluate machine-learning systems. Depending on the posting, that can 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 to label or verify content. Exact responsibilities, acceptance criteria, and deliverables vary by assignment, so inspect the individual posting for the project you want to apply to.

  • Annotation and labeling: marking objects, bounding boxes, categories, or attributes in images and video clips.
  • Language and content tasks: transcribing audio, translating text, writing or rating conversational responses, and evaluating search relevance.
  • Specialized reviews: code review, expert validation, or applying subject-matter knowledge to judge accuracy or safety.

How hiring works through OpenTrain

All applications for these roles go through OpenTrain. OpenTrain is the hiring organization for roles open to applicants located in Japan, and OpenTrain may place or refer successful candidates to the client whose project they will support. The live posting for each role is the authoritative source for eligibility, qualifications, hours, pay, location rules, and any client-specific requirements.

  • Apply through OpenTrain; individual listings state required qualifications and eligibility.
  • OpenTrain may place or refer selected candidates to the client whose project they support.

Frequently asked questions

What can this work involve?
AI training work for applicants located in Japan can involve many different tasks used to improve models: tagging or labeling images and video, transcribing or recording speech, translating or checking text, writing or rating model outputs, judging search results, or reviewing code and expert content. Each posting specifies the exact duties, required skills, and any language or regional requirements you must meet, so read the live posting for the role you are considering.
Where can I find role-specific details?
Individual live postings are the only source of truth for details such as who is eligible, what the responsibilities are, required qualifications, hours, schedule, and pay. If a listing accepts applicants located in Japan, that acceptance and any additional restrictions will be named on the posting. Inspect the posting closely to confirm whether you meet the listed requirements before applying.
How does hiring work through OpenTrain?
Hiring for these roles is handled through OpenTrain; candidates apply through OpenTrain, and OpenTrain may place or refer successful candidates to the client whose project they will support. The live posting will indicate any role-specific eligibility, qualifications, and client rules you must meet.