This facet highlights remote AI training and data-labeling roles that explicitly accept applicants located in Japan. The work supports the human review and preparation of examples used to train or evaluate artificial-intelligence systems. OpenTrain is the hiring organization for the roles presented here and may place or refer successful candidates to the client whose project they will support. Candidates apply through OpenTrain and should read each live posting for the specific eligibility, qualifications, and other role-specific details.
Join OpenTrain as a part-time Video Content Data Labeling Associate to annotate short first-person household-task videos (classification and object detection). Entry-level friendly, remote worldwide, $10–$12/hr for 20+ hours/week.
Posted Jul 16, 2026
Evaluate LLM outputs on complex finance tasks, craft domain-specific rubrics, and help improve AI training and benchmarking. Remote, flexible contract work (10–30 hrs/week) with competitive pay around $100+/hr.
Posted Jul 15, 2026
Join OpenTrain as a part-time AI Quality Analyst evaluating a conversational AI personalization feature; Portuguese fluency required. Remote, contractor work at $15/hr with a 20+ hour weekly commitment—you'll design personal prompts, compare side-by-side responses, and write defensible rationales.
Posted Jul 15, 2026
Evaluate and improve large language models on real finance tasks — capital markets, trading, M&A, accounting and more. Contract, part-time role (20+ hrs/week) paid $100/hr; English required and open worldwide through OpenTrain.
Posted Jul 15, 2026
Evaluate a new personalization feature for a conversational AI in German: design multi-turn prompts, compare side-by-side responses, and write clear rationales. Contractor role, $15/hr, 3-month engagement, remote with required PST overlap.
Posted Jul 15, 2026
Join OpenTrain to evaluate large language model outputs, create challenging prompts, and deliver recorded verbal feedback; remote, contract role (20+ hrs/week) paying $20–$30/hr. Entry-level friendly for strong American English speakers with LLM experience.
Posted Jul 15, 2026
Join OpenTrain as a remote Economics Expert to create benchmark-quality economics responses, review advanced solutions, and document rationales for AI training—PhD required; $80–90/hr, 20+ hours/week, contract part-time.
Posted Jul 15, 2026
Join OpenTrain as a contractor producing authoritative computer‑science answers, creating golden responses, and reviewing technical solutions to improve AI. PhD required; 20+ hours/week; $80–$90/hr; fully remote and open worldwide (English).
Posted Jul 15, 2026
Bring your PhD in biology to improve AI systems: review and refine biology prompts, scenarios, and model outputs on a part-time, remote contract at $80–90/hr. Work <20 hrs/week on text-based evaluation and generation tasks with OpenTrain AI.
Posted Jul 15, 2026
Join OpenTrain as a remote Physics AI Training Specialist (contract, <20 hrs/week) to create and review advanced physics content that improves AI reasoning; requires a PhD in Physics and pays $80–$90/hr. Work focuses on text-based generation and evaluation tasks.
Posted Jul 15, 2026
Join OpenTrain as a contracted Math Expert (PhD) creating and refining precise model answers for advanced undergraduate and graduate math prompts. Part-time remote work, 20+ hours/week at $80–$90/hr; English required.
Posted Jul 15, 2026
Use your PhD-level statistics expertise to write, review, and explain model responses that teach AI systems; part-time remote contract paying $90–$120/hr for an estimated 1–3 month project with flexible hours.
Posted Jul 15, 2026
Join OpenTrain as a remote Chemistry AI Training Reviewer to write and rate advanced chemistry responses, create golden-reference answers, and improve model behavior — part-time contract paying $80–$90/hr for an estimated 1–3 month engagement.
Posted Jul 15, 2026
Record, transcribe, and rate German voice interactions for a next‑generation AI assistant on your Mac; $38/hr, 20+ hours/week, fully remote and contractor-friendly. Ideal for native German speakers with strong transcription attention to detail.
Posted Jul 14, 2026
Remote contract role transcribing and rating French voice interactions for a next‑generation AI assistant at $38/hr; requires an Apple Silicon Mac and native/near‑native French. Immediate start; typical 20+ hrs/week with a default 40‑hour commitment over a 3‑week timeline.
Posted Jul 14, 2026
Design grading rubrics and score AI and human consulting deliverables with evidence-based written justifications. Remote contractor role, 20+ hours/week, pay $150–$220/hr working for OpenTrain AI on evaluation and quality tasks.
Posted Jul 14, 2026
Create graduate-level multiple-choice questions and exam-quality rationales, review AI-generated mechanical engineering content, and help ensure technical accuracy; contract, remote role paying $60–$130/hr for ~20+ hours/week.
Posted Jul 14, 2026
Remote, contractor role recording, annotating and evaluating German speech to improve AI pronunciation and language understanding; part-time (20+ hrs/week) and paid $30–$65/hr. Native German fluency and phonetics awareness required.
Posted Jul 14, 2026
Remote, part-time contract role writing and reviewing graduate-level electrical engineering exam questions and model outputs; flexible under 20 hrs/week, paid $40–$130/hr. Ideal for PhD or advanced master's holders with university teaching and assessment experience.
Posted Jul 14, 2026
Provide authoritative adjudication and written evaluations on contested high-energy and mathematical physics arguments to train next-generation AI. Part-time remote contractor role (under 20 hrs/week), $80–$160/hr, OpenTrain AI hiring.
Posted Jul 14, 2026
Join OpenTrain as a French Voice Coach delivering personalized pronunciation, diction, and fluency coaching in French; contractor, part-time role paying $30–$65/hr. Work remotely under 20 hours/week designing exercises, giving actionable feedback, and keeping progress records.
Posted Jul 14, 2026
Join OpenTrain as a part-time Hindi Voice Coach helping learners improve pronunciation, intonation, and conversational fluency through remote coaching and audio review. Flexible contractor role (under 20 hrs/week), paid $30–$65/hr, open worldwide to native or near-native Hindi speakers.
Posted Jul 14, 2026
Rate and annotate AI‑generated German-language music for up to 6 months, using music-production and audio-engineering terminology. Remote part‑time contract, 20+ hours/week, $32.48–$58.46/hr; native German and strong English required.
Posted Jul 13, 2026
Review and annotate Vietnamese AI-generated music—judge lyrics, vocal quality, musicality, creativity, and production, and tag songs with genre, structure, and performance features. Remote contractor role for experienced music producers or audio engineers, 20+ hrs/week, USD $13.01–$23.43/hr; Vietnam
Posted Jul 13, 2026
Evaluate AI-generated Thai music—lyrics, vocals, and full mixes—on a flexible part-time contract. Intermediate role (20+ hrs/week) paying $13.01–$23.43/hr; native or near-native Thai and English required.
Posted Jul 13, 2026
Join OpenTrain as an AI Safety Red Teamer testing conversational models with jailbreaks, prompt injections, and adversarial attacks. This contract, remote role pays $20–$22/hr, requires native English and Odia, and expects 20+ hours/week.
Posted Jul 13, 2026
Join OpenTrain AI to evaluate Odia-language model responses and write clear English evaluations that improve LLM behavior. Part-time contractor role (20+ hrs/week), $15–$20/hr — native Odia fluency and strong English writing required.
Posted Jul 13, 2026
Join OpenTrain AI to evaluate Telugu AI-generated responses and write clear English assessment notes that improve model behavior; remote contract, 20+ hrs/week, $15–$20/hr. Ideal for native Telugu speakers with strong English writing and LLM experience.
Posted Jul 13, 2026
Evaluate Urdu AI-generated responses for factual accuracy, clarity, tone, and reasoning, and write clear English analyses that guide model improvement. Remote contractor role, 20+ hours/week, $15–$20 per hour.
Posted Jul 13, 2026
Join OpenTrain as a remote Bengali AI Response Evaluator to review and rate Bengali LLM outputs, provide detailed English feedback, and help improve model behavior; part-time contract work, flexible hours, $15–$20/hr.
Posted Jul 13, 2026
Tasks in these listings support AI-training and data-labeling projects and can include annotating images or video, transcribing or recording audio, rating or writing model outputs, evaluating search results, translating text, and applying subject-matter review.
Each posting describes the exact responsibilities and deliverables for its project; review the live posting to understand what a particular role requires.
Useful strengths include careful attention to detail, clear written communication, consistency in applying labels, and the ability to work with language-specific instructions when a posting lists a language requirement.
Think of these as helpful attributes to evaluate whether a listing matches your strengths; the live posting specifies which skills or credentials are required.
The live posting is the source of truth for eligibility, location rules, language requirements, qualifications, responsibilities, and other role-specific details. If a posting explicitly accepts applicants located in Japan it will state that in its eligibility or location rules.
Do not assume details across listings; always read the individual listing to confirm whether it suits your situation before applying.
