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.
Annotate Polish text, audio, and images for AI training at $20/hr—verify transcriptions, tag entities, and apply sentiment and semantic labels. Flexible remote contractor roles for full-time (8 hrs/day) or part-time (min 20 hrs/week).
Posted Dec 18, 2025
Record five short Dutch conversations with another speaker (about 1.5 hours total) and earn a fixed $100 payment; four street-style and one in-car scenario. Fully remote and open worldwide — all recordings must be completed before Monday.
Posted Dec 17, 2025
Join OpenTrain AI as a part-time contractor annotating programming and related datasets; this remote role is open to Indian nationals based in India, requires a Bachelor's in Computer Science or related and expert annotation skills, and offers a fixed USD 10 payment with under 20 hours/week expected
Posted Dec 17, 2025
Generate a training dataset that maps natural-language vehicle use cases to lists of CAN signals using OpenTrain's proprietary tooling; fixed-price contractor role paying $2,000 USD. Subject-matter expertise in automotive CAN signals is required.
Posted Dec 15, 2025
Join OpenTrain AI to train and evaluate advanced models by writing computational mechanical engineering problems and verified Python solutions. Part-time, remote work (under 20 hrs/week) for candidates with BSc+1yr or MSc/PhD and C1 English—paid up to $45/hr.
Posted Dec 12, 2025
Proofread Malay dictionary entries: confirm Malay words, correct spellings, and fix phonemic pronunciations using a specified phoneme set. Remote contract for native Malay speakers with ~3+ hours/day availability; paid $6 per 1,000 words (project budget $100).
Posted Dec 10, 2025
Label polygon masks and occupancy types on architectural floor-plan images using Roboflow to train a room-detection segmentation model. Part-time contractor work, remote worldwide — pay $10/hr, about 20+ hours/week.
Posted Dec 5, 2025
Create anonymized financial document + structured JSON ground-truth pairs to help benchmark and evaluate AI models; contractor, part-time, fixed-price $300, remote worldwide. Intermediate applicants with retail wealth-management familiarity are strongly encouraged to apply.
Posted Dec 5, 2025
Share your experience training AI by answering ten open-ended questions about pay, job security, workplace, and the highs and lows of this work. Open worldwide to people who have worked in AI training; part-time contractor project with a fixed price of $0 USD.
Posted Dec 5, 2025
Design and implement realistic, end-to-end data science problems used to train and evaluate advanced AI systems. Senior quantitative candidates with 5+ years of hands-on data science, expert Python and strong SQL skills, paid $50/hr as a part-time contractor.
Posted Dec 3, 2025
Annotate cooking and food videos by marking precise start/end times for actions, classifying action types and objects, and writing visually grounded descriptions for CLIP training. Contract, remote, worldwide work paid at $0.05 per labeled moment using Label Studio.
Posted Nov 19, 2025
Watch NBA games and earn $0.20 per recorded in-game event; OpenTrain provides a paid streaming subscription and a simple template so you can label plays using our internal tool. Part-time contractor work, under 20 hrs/week, open worldwide.
Posted Nov 18, 2025
Join OpenTrain AI to red-team large language models and agents, building reproducible attack tests, automation, and security tooling. Part-time remote work for certified cybersecurity professionals with strong scripting and pentesting experience, flexible hours, pay up to $55/hr.
Posted Nov 17, 2025
Join OpenTrain AI to label volleyball actions in images (spike, block, serve, set, receive) using CVAT. Entry-level, part-time contractor work paid per label ($0.03), remote and flexible — under 20 hours/week with examples and guidelines provided.
Posted Nov 16, 2025
Label volleyballs in rally images using CVAT for a one-time, flexible task paid at $0.04 per label; open to entry-level contributors worldwide with less than 20 hours/week commitment.
Posted Nov 14, 2025
Annotate 200 high-resolution (20MP) smartphone front-screen photos to segment surface defects (scratches, pits, cracks, blemishes, discoloration). Entry-level, part-time contractor work using Label Studio — pre-annotations provided, remote worldwide, $2/hr, <20 hrs/week.
Posted Nov 14, 2025
Join OpenTrain as a part-time, contract Portuguese QA Annotator reviewing Portuguese AI outputs for quality, correctness, and guideline alignment. Flexible hours (<20 hrs/week), $15/hr, must reside in Portugal with C1+ European Portuguese and B2+ English.
Posted Nov 12, 2025
Italy-based contract role reviewing and scoring Italian AI outputs — C1+ Italian and B2+ English required. Flexible part-time work (<20 hrs/week) with $17/hr pay; audit labels, tag entities and sentiment, write reviewer notes, and suggest guideline improvements.
Posted Nov 12, 2025
Annotate recycling images by outlining individual objects with polygons using CVAT and the Segment Anything interactor; entry-level, remote contractor work paid at $5/hr. Start with a small paid trial and earn more by meeting speed and accuracy targets.
Posted Nov 11, 2025
Join OpenTrain AI to annotate images for a PPE-detection model—create precise bounding boxes and polygon masks across eight classes using Roboflow. Fixed-price contractor role: $2,000 total, fully remote and open worldwide to expert labelers.
Posted Nov 4, 2025
Annotate conversational banking data for an AI financial advisor: intent labels, merchant/transaction categories, assistant-response evaluation, function-call tagging, and SQL-safety checks. Contractor project (remote worldwide) using AWS SageMaker; fixed-price $2,000.
Posted Oct 30, 2025
Join OpenTrain AI to label buttons and icons in product photos using bounding boxes and polygons; this entry-level, remote contractor role pays $0.05 per labeled item. Work on small batches of images in Label Studio — flexible, part-time work that helps train real machine-learning systems.
Posted Oct 27, 2025
Remote contract role building polished, responsive web UIs — 17–20 hrs/week, $35/hr. You must have 2–6 years frontend/full‑stack experience, strong JS/TS with React/Next.js/Vue/Angular, and a public live portfolio link to apply.
Posted Oct 27, 2025
Join OpenTrain AI as a remote contractor verifying and annotating company records (name, jurisdiction, website, directors, shareholders, revenue range, payment types) using careful human research and Excel highlights; $15/hr, intermediate-level, worldwide.
Posted Oct 27, 2025
Paid remote contractor role reviewing AI-generated chemistry reasoning at $80/hr. Requires a BS/MS/PhD (or in progress) in chemistry, strong quantitative and lab literacy, and 17–20 hrs/week availability; includes paid qualification and project exams.
Posted Oct 24, 2025
Evaluate AI-generated biology responses for correctness, experimental design, and reasoning depth. PhD in Biology required; $80/hr, minimum 17–20 hrs/week, paid onboarding exams, contractor part-time role with remote work worldwide.
Posted Oct 24, 2025
Join OpenTrain AI to evaluate and improve physics-focused AI outputs—paid contract work at $80/hr, part-time (minimum ~17–20 hrs/week). Use your physics degree to spot subtle errors, write step-by-step solutions, and rate model responses with detailed rubrics.
Posted Oct 24, 2025
Evaluate and rate AI-generated mathematical solutions, author exemplar step-by-step answers, and catch subtle conceptual or computational errors; $80/hr, contractor part-time role requiring a BS/MS/PhD in mathematics from a top-100 university and 17–20 hrs/week minimum.
Posted Oct 24, 2025
Part-time contractor role testing and evaluating an internal AI coding tool; $100/hr, remote, under 20 hrs/week. Ideal for intermediate Python engineers with hands-on experience using AI coding assistants like Cursor, Windsurf, or Claude Code.
Posted Oct 17, 2025
OpenTrain AI is hiring a part‑time Frontend UI Developer with 2–4 years' experience in React, Angular, Next.js, or Svelte to build and polish responsive, accessible web interfaces. Remote, 17–20 hrs/week; baseline $10–$30/hr with top candidates paid up to $40–$50/hr.
Posted Oct 6, 2025
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.
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.
