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.
Write original computational mechanical-engineering problem sets and deliver fully reproducible Python solutions using NumPy, Pandas, and SciPy; part-time contractor role (20+ hrs/week) with pay up to $50/hr. CV in English required; some locations are restricted.
Posted Mar 29, 2026
Author and verify original electrical engineering computational problems using Python and scientific libraries for OpenTrain AI; part-time contractor role (<20 hrs/week) requiring an EE degree and 2+ years' professional or teaching experience.
Posted Mar 29, 2026
Design original civil/computational engineering problems and verify reproducible solutions using Python to create high-quality training data for generative models. Part-time contract (20+ hrs/week), up to $50/hr; requires a Civil Engineering degree, 2+ years relevant experience, and strong written E
Posted Mar 29, 2026
Annotate fields on images of US driver's licenses (names, DOB, address, portrait, signature, and more) using Label Studio. Entry-level, remote, part-time contract work worldwide; pay listed at $5/hr (range $1–$7/hr), under 20 hrs/week.
Posted Mar 24, 2026
Design and build high-converting landing pages and brand storefronts using no-code platforms (Shopify, Webflow, Squarespace, WordPress). Part-time contractor role (<20 hrs/week) with hourly pay ($10–$25/hr, typical $20/hr); strong portfolio with live links required.
Posted Mar 11, 2026
Review AI-extracted records from PDFs, emails and scanned files: confirm, correct, fill missing fields, and flag ambiguities for escalation. Part-time contractor role, $12/hr, under 20 hours/week — ideal for people with invoices, orders, or logistics experience.
Posted Mar 3, 2026
Join OpenTrain to build a supervised fine-tuning dataset and run QLoRA on Qwen3-Coder for JUCE/C++ audio DSP. This contract role requires expert JUCE/DSP experience to extract code from 40+ repos, craft 3,000–5,000 ChatML examples, and fine-tune with Unsloth.
Posted Feb 27, 2026
Join OpenTrain AI to build end-to-end Python scraping pipelines and deliver clean structured datasets (CSV/JSON/Sheets). Remote, 20+ hrs/week at $20/hr; you must have hands-on experience with dynamic/JS-rendered sites and B2+ English.
Posted Feb 26, 2026
Record high-quality US English speech samples to train and evaluate AI speech systems for $30/hr. This contractor role is remote and requires professional recording equipment and native or near-native US English pronunciation.
Posted Feb 22, 2026
Review AI prompts and model responses, labeling for accuracy, relevance, clarity, and safety in a flexible remote contract role. Entry-level position paying $5/hr for under 20 hours per week with clear guidelines, examples, and random quality audits.
Posted Feb 22, 2026
OpenTrain AI seeks native-level French speakers to produce ARPABET phoneme- and word-level transcriptions for 1–2 minute audio clips. This remote, contract role requires 20+ hrs/week, passing a qualification quiz, and pays $18–$20 USD/hour.
Posted Feb 20, 2026
OpenTrain AI seeks experienced local teams to run on-the-ground facial image collection projects; part-time contractor work pays $25–30/hour for under 20 hours/week. Teams must demonstrate prior offline face-collection experience and basic English.
Posted Feb 6, 2026
OpenTrain AI seeks native Japanese speakers in Japan to transcribe short audio clips and verify audio quality; long-term, flexible schedule (~1 hour/day, Mon–Fri) at $15/hr. Must follow strict guidelines and complete a short screening sample.
Posted Feb 5, 2026
Join OpenTrain to transcribe short Italian audio clips for a long-term, flexible role (~1 hour/day, Mon–Fri). Work remotely from Italy using Labelbox, complete a short screening sample, and earn $11/hr while helping train speech AI.
Posted Feb 5, 2026
OpenTrain is hiring part-time contractor annotators to create dense, multi-tier captions and sub-second trajectory labels for first-person video. C1 English, strong timestamping skills, and availability for a February pilot required; pay is USD 8/hour.
Posted Feb 2, 2026
Native Japanese speakers in Japan needed to annotate and QA Japanese PDFs: draw bounding boxes, classify elements, correct OCR, and create simple HTML table descriptions. Pilot 2–3 hours; ongoing flexible contractor work. Pay: $18/hr (Annotator), $20/hr (QA).
Posted Jan 29, 2026
OpenTrain is hiring an entry-level content writer to produce and review energy-focused text with occasional annotation work in AWS SageMaker; this contract is roughly one paid hour per month for a fixed $100 fee. Remote worldwide — you must set up equipment/accounts and be punctual for any scheduled
Posted Jan 17, 2026
Seeking US-based, board-certified radiologists (MD) to perform CT and MRI DICOM annotation (polygon, segmentation, diagnostic labels) for a contract radiology project; hourly pay $150 and contracted through OpenTrain AI.
Posted Jan 15, 2026
Label bounding boxes around purple-outlined characters for a YOLO training dataset using Roboflow; pay is $0.02 per labeled image. Part-time contractor work (worldwide, <20 hrs/week) for intermediate image-annotation contributors.
Posted Jan 13, 2026
Design structured evaluation scenarios and gold-standard behaviors for LLM-based agents in a remote, part-time contractor role (20+ hrs/week). Pay $18–$24/hr; requires QA-style thinking, basic Python/JavaScript, and strong written English.
Posted Jan 13, 2026
Long-term, part-time contract for native Korean speakers based in South Korea to transcribe short audio clips; flexible ~1 hour/day schedule at $14/hour. Ideal for detail-oriented listeners with strong written Korean and steady internet.
Posted Jan 7, 2026
Long-term remote contract for native France-based French speakers to transcribe short conversational audio ~1 hour/day on a flexible schedule at $15/hr. Accurate, rule-driven transcripts and simple audio verification tasks required; a short screening sample is part of the process.
Posted Jan 7, 2026
Work remotely as a Hebrew–English bilingual evaluator, reviewing and improving AI-generated text for accuracy, clarity, and reasoning. Part-time contractor role at $32/hr (under 20 hrs/week) for experienced translators, editors, or linguistic QA specialists.
Posted Dec 26, 2025
Create 150 private-wealth Q&A pairs and evaluate model responses against certified-advisor standards, assigning 1–10 ratings. Remote, contract, part-time project (under 20 hrs/week) with a fixed fee of $500, open worldwide to finance professionals.
Posted Dec 19, 2025
Part-time contract role for Korean–English localization experts based in South Korea: evaluate and improve AI-generated Korean outputs using MQM/LQA, CAT workflows, and terminology management. Up to 20 hrs/week at $27/hr.
Posted Dec 19, 2025
OpenTrain AI is hiring an experienced Japanese–English localization and LQA specialist to evaluate AI-generated translations, correct outputs, and rate responses using structured criteria. Part-time contractor (remote, worldwide) under 20 hrs/week at $30/hr.
Posted Dec 19, 2025
Part-time contractor role for Spain-based localization professionals to evaluate and improve AI-generated Spanish (Spain) outputs; $24/hr, under 20 hrs/week. Requires native/nearly native Spanish, C1+ English, 5+ years localization experience, and strong MQM/LQA and CAT-tool skills.
Posted Dec 19, 2025
OpenTrain AI seeks a Germany-based contract localization expert to evaluate and improve AI-generated German outputs. Part-time (up to 20 hrs/week) work using MQM/LQA and CAT-tool workflows at $35/hr — ideal for seasoned localization professionals.
Posted Dec 19, 2025
OpenTrain seeks an experienced Chinese (Simplified)–English localization and LQA specialist to review and improve AI-generated translations. Part-time, remote contractor role (worldwide), under 20 hrs/week at $24/hr.
Posted Dec 19, 2025
Evaluate AI-generated Bash and PowerShell scripts: find bugs, security risks, and portability issues; rate responses and author model solutions. Mid‑senior US‑based contractors with 2–3+ years of scripting experience, Bachelor's required — part‑time up to 20 hrs/week at $40/hr.
Posted Dec 19, 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.
