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Search for STEM Specialist (Japanese Fluency) - Freelance AI Trainer

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Contract|$8/hr - $65/hr|Remote|Japan

Are you a passionate STEM professional fluent in Japanese, ready to influence the future of artificial intelligence? As large-scale language models evolve from simple chatbots to remarkable tools for scientific exploration and problem-solving, your expertise is essential. High-quality training data is the foundation for an AI that can democratize access to t…

Feb 12, 2026
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Contract|$8/hr - $65/hr|Remote|Japan

Are you a passionate Japanese language expert ready to influence the future of artificial intelligence? As large-scale language models transition from basic chatbots to advanced linguistic tools, your role is pivotal in providing high-quality training data. This data can revolutionize access to world-class education, keep up with cutting-edge research, and enhance communication for Japanese speakers globally. Your expertise will be the driving force behind the next generation of AI. We seek Japanese language specialists who possess a deep understanding of Japanese grammar, syntax, morphology, kanji, hiragana, katakana, phonology, and pragmatics. You will engage with advanced language models on intricate topics such as verb conjugation, sentence structure, honorifics, and the subtleties of formal and informal speech, as well as regional dialects and kanji readings. Your mission will be to document and analyze errors, enabling us to strengthen the model's reasoning capabilities. Your daily activities will include conversing with the model on various language scenarios, assessing factual accuracy, capturing reproducible error traces, and providing insights for improving our prompt engineering and evaluation metrics. The ideal candidate will hold a Master’s or PhD in Japanese language, linguistics, or a closely related field. Experience in peer-reviewed publications, teaching, or hands-on linguistic analysis projects will enhance your fit for this role. Exceptional metacognitive communication skills—clearly explaining your thought process—are essential. Are you ready to transform your Japanese language expertise into foundational knowledge for the AI of tomorrow? Apply now and contribute to the model that will educate the world!

Feb 17, 2026
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Contract|$6/hr - $65/hr|Remote|Japan

Are you a specialist in the Japanese language eager to influence the future of artificial intelligence? We are on the lookout for passionate Japanese language experts with access to Android devices to assist in extensive language model training. These models are transitioning from simple chatbots to sophisticated engines of linguistic exploration. With your high-quality training data, the AI of tomorrow can provide world-class education, keep up with cutting-edge research, and enhance communication and translation for Japanese speakers worldwide. Your expertise is crucial in powering the next generation of AI.We need Japanese language specialists who thoroughly understand the intricacies of Japanese grammar, syntax, morphology, semantics, phonetics, and pragmatics. You will evaluate advanced language models on various topics such as dialectal differences, formal versus colloquial expressions, Japanese orthography, translation precision, semantic ambiguity, and cultural context—documenting every challenge to strengthen model reasoning.Your daily tasks will include engaging with the model on language scenarios, verifying factual accuracy and logical consistency, capturing reproducible error traces, and proposing enhancements to our prompt engineering and evaluation metrics.An ideal candidate will possess a master’s or PhD in Japanese language, linguistics, or a closely related field, along with peer-reviewed publications, translation experience, or practical linguistic analysis projects. Clear, reflective communication—demonstrating your thought process—is essential.Are you ready to transform your Japanese language proficiency into foundational knowledge for the AI of tomorrow? Apply today and start training the model that will teach the world.

Feb 17, 2026
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Contract|$6/hr - $65/hr|Remote|Japan

Are you a mathematics aficionado fluent in Japanese, passionate about influencing the future of artificial intelligence? As large-scale language models transition from simple chatbots to sophisticated tools for scientific discovery, your expertise is crucial. By providing high-quality training data, you can help democratize world-class education, enable cutting-edge research, and facilitate academic workflows for students and professionals globally. Your journey in powering the next generation of AI starts here!We are seeking mathematics specialists who are deeply familiar with algebra, calculus, number theory, linear algebra, differential equations, statistics, geometry, mathematical logic, and discrete mathematics. You'll engage with advanced language models on topics such as real and complex analysis, optimization theory, mathematical proofs, set theory, probability distributions, cryptographic algorithms, and applied mathematics—documenting challenges to enhance model reasoning.On a typical day, you will interact with the model regarding classroom problems and theoretical mathematics inquiries, verify accuracy and logical consistency, document reproducible error traces, and propose enhancements to our prompt engineering and evaluation metrics.A Master's degree or PhD in mathematics or a closely related quantitative field is preferred; experience with peer-reviewed publications, teaching, research in pure or applied mathematics, or practical experience in mathematical modeling will enhance your application. Exceptional metacognitive communication—clearly demonstrating your thought process—is essential.Ready to leverage your mathematical skills to contribute to the knowledge base of tomorrow's AI? Apply today to start shaping the model that will educate the world.

Feb 12, 2026
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Contract|$8/hr - $65/hr|Remote|Japan

Are you a passionate Korean language expert ready to influence the future of artificial intelligence? As large language models evolve from simple chatbots into sophisticated linguistic tools, your role will be pivotal in providing high-quality training data. This data is essential for developing AI that democratizes education, accelerates research, and enhances communication for Korean speakers globally. Your expertise will contribute to powering the next generation of AI. We are in search of Korean language specialists who possess an in-depth understanding of Korean grammar, syntax, morphology, phonetics, semantics, and pragmatics. You will engage with advanced language models, focusing on intricate aspects such as honorifics, sentence structure, verb conjugation, word order, regional dialects, idiomatic expressions, and script variations. Your task will involve documenting any errors to refine the model's reasoning capabilities. Your daily responsibilities will include interacting with the model through various language scenarios, ensuring factual accuracy and logical consistency, capturing reproducible error traces, and proposing enhancements to our prompt engineering and evaluation metrics. A master's degree or PhD in Korean language, linguistics, or a closely related field is preferred. Experience in peer-reviewed publications, teaching, or practical linguistic analysis projects will demonstrate your suitability for this role. Strong metacognitive communication skills—essentially showing your reasoning and thought processes—are crucial. Are you ready to transform your Korean language expertise into a foundational knowledge base for future AI? Apply now and start training the model that will educate the world!

Feb 17, 2026
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Contract|$8/hr - $65/hr|Remote|Japan

Are you a passionate Thai language expert with a desire to influence the future of artificial intelligence? As large-scale language models transition from sophisticated chatbots to transformative engines of linguistic exploration, the need for high-quality training data is paramount. This is your chance to contribute to the evolution of AI that democratizes access to world-class education, keeps pace with cutting-edge research, and enhances communication for Thai speakers globally.We are seeking dedicated Thai language specialists who possess a deep understanding of phonetics, syntax, morphology, semantics, pragmatics, sociolinguistics, and language acquisition. You will engage with advanced language models, focusing on areas such as tone marking, sentence structure, classifier usage, regional dialects, formal versus informal language, idiomatic expressions, and cultural references. Your role will involve documenting any discrepancies to strengthen and refine model reasoning.On a daily basis, you will interact with the model in various language scenarios, verify factual accuracy and logical coherence, track reproducible errors, and propose enhancements to our prompting strategies and evaluation metrics.A master's degree or PhD in Thai language, linguistics, or a closely related discipline is preferred. Indications of suitability include peer-reviewed publications, teaching experience, and involvement in linguistic analysis projects. Effective and clear communication—demonstrating your thought process—is essential.Are you ready to leverage your Thai language expertise to build the foundation for tomorrow's AI? Apply now and be part of the journey that will shape global education.

Feb 12, 2026
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Contract|Remote|Japan

Join our dynamic team as a Kansai Dialect Specialist for a cutting-edge AI Trainer Project. In this freelance role, you will leverage your expertise in the Kansai dialect to assist in training AI systems, ensuring accuracy and cultural relevance. Your insights will be invaluable in refining AI interactions for users in the Kansai region.

Mar 13, 2026
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Ergomed logo
Contract|On-site|Tokyo

Ergomed is seeking a Pharmacovigilance Physician I / II for a 1-year contract position in Tokyo. This role is part of the Pharmacovigilance Medical Group and focuses on maintaining drug safety and efficacy. Japanese fluency is essential for this position. Key Responsibilities Monitor and evaluate adverse drug reactions to ensure patient safety. Prepare and submit safety reports in line with regulatory requirements. Collaborate with team members to support ongoing pharmacovigilance activities. Requirements Fluency in Japanese. Relevant medical background. Demonstrated interest in drug safety and pharmacovigilance. Contract Details This is a full-time, 1-year contract role based in Tokyo.

Apr 21, 2026
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Contract|Remote|Japan

We are seeking a talented Tsugaru Language Specialist to join our team as a Freelance AI Trainer. In this role, you will contribute your expertise in the Tsugaru language to enhance AI training models. This is a unique opportunity to work with cutting-edge technology while promoting and preserving the Tsugaru language.

Mar 13, 2026
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LILT logo
Contract|Remote|Japan (Remote)

Are you enthusiastic about artificial intelligence and proficient in analyzing text and multimedia content?We are seeking meticulous linguists with native proficiency in Japanese to assist in an AI-focused project that involves prompt evaluation, video content comprehension, text review, and correction, among other tasks.This is a freelance opportunity available remotely.

Oct 16, 2025
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Pixelogic Media Partners, LLC logo
Contract|Remote|Remote — Japan

Freelance Japanese to English Subtitling Translator/QC Specialist About Pixelogic Media Partners, LLC Pixelogic Media Partners, LLC is a subsidiary of IMAGICA GROUP, providing content localization and distribution services to the media and entertainment industry. Our operations span several global locations, including Burbank, Culver City, London, Cairo, and Cape Town. Clients include Hollywood studios, broadcasters, and digital platforms. We help studios and content creators reach audiences worldwide through language services such as scripting, subtitling, access services, and dubbing. Our technology solutions support everything from digital extras packages to physical disc authoring. Pixelogic has delivered thousands of titles to platforms like iTunes, Google, Netflix, and Amazon, and contributed to iTunes Extras as well as award-winning mobile applications and content. Role Overview Pixelogic is expanding its language services for the APAC region and is looking for experienced Japanese to English subtitling translators and QC specialists. This freelance role supports our language services department in delivering projects to a high standard. What You Will Do Translate Japanese content into English subtitles with accuracy and cultural sensitivity Perform quality control (QC) on subtitle files to ensure consistency and correctness Collaborate with team members to meet client expectations and delivery schedules Adapt to shifting project priorities and timelines as needed What We’re Looking For Experience in Japanese to English subtitling translation and/or QC Ability to work independently and as part of a remote team Proactive approach and adaptability to changing requirements Comfort with flexible hours to accommodate delivery schedules Location: Remote , Japan

Apr 16, 2026
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Welo Data logo
Freelance|Remote|Japan

Join Welo Data, a leading global AI data company under Welocalize, where we harness the power of human contribution to build smarter, more ethical AI systems. With over 500,000 contributors across 100+ countries, we are dedicated to delivering high-quality data that fuels the world’s most advanced AI technologies.At Welo Data, our motto, 'Limitless AI. Limitless You.', reflects our commitment to providing limitless opportunities for growth and contribution within a diverse and inclusive community.AIの未来をあなたの手で形作りましょうWelo Dataでは、高品質な言語データを通じて人間中心のAIを支えています。私たちと共に、言語を通じてより包括的な技術を実現し、世界中のクライアントに貢献しませんか?私たちは、言語学者や文化に精通した貢献者で構成されるグローバルなコミュニティを拡大しています。リモートで柔軟に働きながら、アノテーション、評価、プロンプト作成といった意義のある仕事に挑戦してみませんか?

May 30, 2025
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Lilt, Inc. logo
Contract|Remote|Japan (Remote)

At Lilt, we are innovating the way large language models are evaluated through our advanced Terminal-Bench tasks. Our comprehensive evaluation suite is designed to push the boundaries of multilingual software capabilities, focusing on assessing multilingual robustness in handling prompt language variations, non-English data processing, and intricate locale/encoding scenarios within terminal workflows.We are looking for seasoned native-speaking software engineers who can conceptualize, develop, and validate these benchmarks. Your role will involve crafting high-quality, impactful tasks that accurately evaluate a model's proficiency in navigating multilingual contexts without the aid of English translations.Please note that this position is a remote, freelance opportunity.Target Languages: Spanish, German, Czech, Turkish, Arabic (Egyptian), Korean, Japanese, Hausa, Hindi, Marathi.Key Responsibilities:Task Engineering: Assessing the performance of Coding Agents.Asset Creation: Develop realistic task scenarios utilizing datasets and files in your native language, ensuring that these remain in the target language for authentic multilingual evaluation.Prompting & Translation: Identify and analyze failure points in AI performance within your native language.Implementation & Verification: Aid in crafting robust solutions (reference implementations) and write dependable, deterministic verifier scripts (utilizing rubric-based judging only when absolutely necessary).Calibration & Execution: Examine execution logs and adjust task difficulty levels (from Easy to Very Hard) using standard Terminal-Bench configurations across various model tiers (Haiku, Sonnet, Opus).Quality Assurance: Engage in a meticulous, 4-layer human quality control process (creation, human review, calibration review, and audit) in conjunction with automated LLM-based checks to maintain fairness, grammatical precision, and benchmark integrity.

Feb 23, 2026
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Keywords Studios logo
Contract|Remote|Remote — Tokyo, Tokyo, Japan

Are you a passionate gamer with exceptional translation skills? Join us in enhancing the gaming experience for players around the world as a Freelance English to Japanese Translator!We are seeking talented linguists to become part of our dynamic pool of translators specializing in video games. You will collaborate with renowned gaming publishers both within Japan and internationally. Project lengths vary, offering you flexibility based on your availability.This freelance position allows you to work from the comfort of your home, regardless of your location.Don't miss the opportunity to apply and learn more!

Dec 24, 2025
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Welo Data, part of Welocalize logo
Japanese Bilingual Audio Specialist

Welo Data, part of Welocalize

Contract|Remote|Japan

Welo Data, a division of Welocalize, is a leading global provider of AI data solutions, boasting a network of over 500,000 contributors dedicated to delivering premium, ethical data for the advancement of AI technologies. Our mission is to create smarter and more human-like AI by leveraging the diverse talents of our community across more than 100 countries.At Welo Data, we believe in the mantra: Limitless AI. Limitless You. This is not just a catchphrase; it reflects our commitment to harnessing human potential to develop cutting-edge AI systems, offering endless opportunities for our global network to excel and contribute flexibly.Role OverviewAre you proficient in both Japanese and another language, and do you have a strong interest in audio quality and linguistic data? Do you want to utilize your voice to influence the development of next-gen AI technologies?We are seeking enthusiastic Japanese Bilingual Audio Specialists for an exciting audio recording initiative. Your fluency in both languages will be instrumental in recording, assessing, and validating audio data that enhances AI systems' understanding and interaction with human language.

Oct 24, 2025
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Contract|$8/hr - $65/hr|Remote|Japan

Are you a passionate science specialist fluent in Arabic, ready to influence the future of artificial intelligence? As large-scale language models transition from sophisticated chatbots to indispensable tools for scientific innovation, your knowledge is crucial. With quality training data, we envision a future where AI democratizes top-tier education, aligns with groundbreaking research, and enhances problem-solving capabilities for scientists and learners globally. Your expertise is the foundation of this endeavor—help us empower the next generation of AI. We seek science specialists deeply immersed in physical science, earth science, environmental science, chemistry, physics, astronomy, and scientific literacy. You will engage with advanced language models on critical topics such as energy transformation, atomic structure, planetary motion, ecological systems, the water cycle, and scientific inquiry—documenting every error so we can strengthen model reasoning. Your daily routine will involve discussing real-world scenarios and theoretical science questions with the model, verifying factual accuracy, capturing reproducible error traces, and recommending enhancements to our prompt engineering and evaluation metrics. A bachelor’s, master’s, or PhD in a science field is preferred; teaching experience, published research, laboratory or field experience, or science communication projects are strong indicators of suitability. Fluency in Arabic and the ability to communicate clearly and metacognitively—“showing your work”—are essential attributes. Ready to transform your scientific knowledge into the backbone of tomorrow’s AI? Apply now and start training the model that will educate the world. We offer a pay range of $8 to $65 per hour, with the exact rate determined based on your experience, expertise, and geographic location. Please note that final offer amounts may differ from the initial range provided. As a contractor, you will need to provide a secure computer and high-speed internet; company-sponsored benefits, including health insurance and PTO, are not included.

Feb 12, 2026
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keywords-intl1 logo
Contract|Remote|Remote — Tokyo, Japan

Join a leading international Localization Service Provider dedicated to the global gaming industry! We are expanding our team and seeking skilled freelance translators specializing in legal translations from English to Japanese.We are looking for experienced professionals to enhance our global linguist team. Eligible candidates will be invited to submit additional documents and undertake a translation test. Successful applicants will collaborate on various legal translation projects.

Jul 1, 2025
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keywords-intl1 logo
Contract|Remote|Remote — Tokyo, Tokyo, Japan

Are you passionate about gaming and fluent in both English and Japanese? Join our dynamic team as a Freelance English to Japanese MOBA Game Translator! Your translation expertise will enhance the gaming experience for players around the world.We are on the lookout for talented linguists to become part of our exclusive pool of English to Japanese translators. You will have the opportunity to work on diverse projects with renowned gaming publishers, both within Japan and internationally. Project durations are flexible, allowing you to manage your workload according to your availability.This freelance position enables you to work from the comfort of your own home, regardless of your location. Seize this chance to apply and discover more about this exciting opportunity!

May 26, 2025
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Keywords Studios logo
Contract|Remote|Remote — Tokyo, Japan

Join a dynamic team at Keywords Studios, a premier international technical service provider dedicated to the global gaming industry. Our studios span across Asia, Europe, North and South America, and we are expanding our team of Japanese to English freelance translators.We are in search of skilled and experienced translators who are passionate about gaming and localization. If you meet our eligibility criteria, you will be invited to complete a translation test that will be evaluated by our expert translation leads. Successful candidates will be onboarded as part of our vibrant global team.Please note: This opportunity is exclusively for freelancers.For those interested in full-time employment, please visit our careers page: Keywords Studios CareersBy submitting your application, you consent to the collection and processing of your personal information as per our Applicant Privacy Notice.

Dec 24, 2025
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TransPerfect Games logo
Contract|On-site|Shinjuku-ku, Tokyo, Japan

TransPerfect Games supports the video game industry with services such as translation, localization, functional and certification testing, player support, community management, cybersecurity, tool development, art design, game writing, GDPR consultancy, and voice-over recording. Role overview This freelance position focuses on localization QA testing for video games. As a native Japanese speaker, you will work directly with both indie studios and well-known AAA publishers. The work involves hands-on testing to help ensure the quality and accuracy of upcoming game releases. Location This role is based in Shinjuku-ku, Tokyo, Japan.

Apr 21, 2026

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