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Search for AI Benchmark Engineer - Japanese Language Specialist

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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/e…

Feb 23, 2026
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Agency logo
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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Agency logo
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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WGSN logo
Full-time|Remote|Japan

Position OverviewWGSN is actively seeking a dedicated Japanese Language Specialist to enhance our Localization team. This is a fully remote role based in Japan.About WGSNAt WGSN, we are pioneers in consumer and design forecasting, creating innovative trends across various sectors including fashion, beauty, interiors, and more. We empower our clients to shape a vibrant future through insightful analytics and expert advice.Role ResponsibilitiesAs a Japanese Language Specialist, you will be responsible for managing WGSN's localized Japanese content, ensuring its alignment with our brand voice. You will collaborate closely with various departments including Marketing, Design, and Product to optimize digital content across our platforms. Additionally, you will work in tandem with the Tech team to implement machine translation systems, refining our localization processes.Our Team MissionWe aim to create intuitive and culturally relevant localized content that resonates with audiences, fostering trust and credibility in the global market.

Oct 23, 2025
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Woven by Toyota logo
Contract|On-site|東京都中央区

About Woven by ToyotaWoven by Toyota is committed to contributing to Toyota's transformation into a mobility company that occurs once in a century. Inspired by our history of continuous invention for the benefit of others, our mission is to redefine mobility and extend the ways it can contribute to society, challenging conventional wisdom with innovations that prioritize people.Our operations are centered around four pillars: autonomous and advanced driver-assistance systems (AD/ADAS), Arene (a vehicle software production platform for software-defined vehicles), Woven City (a mobility test course), and digital infrastructure supporting collaboration through Cloud & AI. Essential business functions underpin the implementation of these teams as we collectively strive towards realizing a society with zero accidents and mass happiness.=========================================================================About the TeamThe Dojo Language team is part of the Learning & Development team. Our team aims to be a driving force for the leadership, mindset, and professional growth of employees at Woven by Toyota.Desired CandidateAs a Japanese Language Instructor on the Dojo Language team, you will be responsible for conducting diverse language lessons targeting adult learners at Woven by Toyota. You will report directly to the team leader of the Dojo Language team.In your role as an instructor, you will be crucial in enhancing the communication skills of employees, considering the diversity of the workforce at Woven by Toyota.Key ResponsibilitiesFor Learners- Conduct one-on-one and group Japanese lessons for employees ranging from beginners to advanced learners- Provide instruction according to the curriculum- Develop long-term learning plans tailored to each learner to enhance their learning outcomesFor the Team- Participate in assigned project activities within the team (e.g., curriculum development)- Execute other tasks assigned by the program leaderRequired Qualifications- Japanese: Native / English: Conversational- One of the following Japanese teaching qualifications: - Passed the Japanese Language Teaching Competency Test - Completed a 420-hour Japanese Teacher Training Course - Major or minor in Japanese at university - Passed the Registered Japanese Language Teacher Exam (not mandatory)- Teaching experience: - Over 5 years of experience in Japanese language education - At least 3 years of experience in corporate training

Feb 24, 2026
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Woven by Toyota logo
Temporary|On-site|Tokyo

Join Our Team as a Japanese Language InstructorWoven by Toyota is at the forefront of Toyota's groundbreaking transformation into a dynamic mobility company. Our mission is to reimagine mobility through human-centric innovation, enhancing the way it serves society.We operate on four key pillars: Autonomous Driving and Advanced Driver Assistance Systems (ADAS), Arene software development platform, Woven City test course, and Cloud & AI infrastructure, all aiming towards a safer and healthier world.About the Dojo Language TeamThe Dojo Language team is part of our Learning & Development department, dedicated to fostering leadership and professional growth among Woven by Toyota employees.Who Are We Looking For?We are seeking a passionate Japanese Language Instructor to join our Dojo Language team. You will design and deliver engaging language lessons to adult learners, reporting directly to the Language Program team lead. Your role is vital in enhancing communication skills across our diverse workforce.Key ResponsibilitiesFor Students:・Deliver personalized one-on-one and group lessons tailored to employees, from beginners to advanced learners.・Implement the curriculum and adapt lessons to meet learners' needs.・Develop long-term learning plans for students to maximize their language acquisition.For the Team:・Contribute to team projects, such as curriculum development and other initiatives as assigned.・Assist with additional tasks as directed by program leadership.

Feb 24, 2026
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Agency logo
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 top-tier education, keep up with cutting-edge research, and enhance the efficiency of engineers, scientists, and analysts globally. This journey begins with you—help us power the next generation of artificial intelligence. We are seeking STEM specialists who are deeply knowledgeable in mathematics, physics, chemistry, engineering, data science, computer science, and scientific computing. You will engage with advanced language models on complex topics such as thermodynamics, mechanics, calculus, statistics, materials science, electronics, algorithm design, and quantitative modeling. Your role will involve documenting failure modes to strengthen model reasoning. On a typical day, you will interact with the model, tackling real-world STEM problem-solving scenarios and theoretical technical questions, verifying factual accuracy and logical consistency, capturing reproducible error traces, and proposing enhancements to our prompt engineering and evaluation metrics. A bachelor’s or master’s degree in a STEM field is preferred, along with indicators of suitability such as published research, engineering design experience, data analysis projects, or coding portfolios. Effective communication, with an emphasis on clarity and metacognition—“showing your work”—is crucial. Are you prepared to leverage your STEM expertise to build the knowledge base for tomorrow’s AI? Apply now and start shaping the model that will educate the world. We offer a pay range of $8 to $65 per hour, with the specific rate determined based on your experience, expertise, and geographic location. Final offer amounts may differ from the stated pay range. As a contractor, you will need to provide a secure computer and high-speed internet; benefits such as health insurance and PTO are not applicable.

Feb 12, 2026
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agency logo
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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Lifted An Upwork Company logo
Contract|Remote|Tokyo

Join our dynamic team as a Japanese Audio Transcription Quality Assurance Specialist. In this role, you will be responsible for ensuring the accuracy and quality of audio transcriptions in Japanese. This is an exciting opportunity for detail-oriented individuals who are passionate about language and transcription.

Mar 18, 2026
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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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liquid-ai logo
Full-time|On-site|Tokyo

Join Our Innovative TeamAt liquid-ai, we are not merely creating AI models—we are revolutionizing the very framework of intelligence. Emerging from MIT, our goal is to develop cutting-edge AI systems that excel at any scale. Our Liquid Foundation Models (LFMs) perform where others fall short: on devices, at the edge, and under the pressure of real-time demands. We are not just iterating on traditional concepts—we are designing the future.We recognize that exceptional talent drives remarkable technology. The liquid-ai team is a collective of elite engineers, researchers, and innovators dedicated to crafting the next generation of artificial intelligence. Whether you are involved in shaping model architectures, enhancing our development platforms, or facilitating enterprise deployments—your efforts will directly influence the evolution of intelligent systems.

Sep 29, 2025
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Agency logo
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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Agency logo
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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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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Welocalize logo
Full-time|On-site|Japan

Welocalize is seeking a Japanese Linguist to support translation and localization projects. This role centers on ensuring that content is both accurate and culturally appropriate for Japanese audiences. Role overview As part of a collaborative team, the Japanese Linguist will review and translate materials to maintain quality and consistency across projects. The position involves working closely with other language professionals to deliver clear and effective communication for a global audience. What you will do Translate and review content for accuracy and cultural fit Work with a team of experts on a variety of projects Help ensure communications are clear and appropriate for Japanese-speaking users Requirements Fluency in Japanese Strong interest in languages and translation Ability to work collaboratively with others

Apr 30, 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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Figma logo
Full-time|On-site|Tokyo, Japan

Figma is hiring a Japanese Speaking Enterprise Support Specialist in Tokyo to join the Product Support team. This position centers on supporting some of Figma’s largest enterprise clients, providing reliable and high-quality assistance tailored to complex business needs. The role works closely with the Enterprise Support Manager and regularly collaborates with Sales, Product, and Engineering teams to ensure a smooth support experience. Key responsibilities Build deep expertise in Figma’s products and understand the customer journey, from Product Designers to Account Administrators, to resolve complex support issues. Communicate daily with enterprise customers in Japanese via email, managing support cases from first contact through resolution. Work with Sales to help large organizations configure workspaces and respond quickly to technical concerns, supporting smooth account setups. Represent customer perspectives by identifying product or process gaps and presenting data-driven recommendations for new features or automation. Act as the main contact for high-risk escalations, coordinating with stakeholders and managing communication until resolution. Spot patterns and share insights with Product and Engineering to advocate for bug fixes, process improvements, and feature enhancements. Participate in pilot programs and experiments to find efficient ways to deliver prompt, personalized support that meets performance standards and customer expectations. Recommend essential tools and processes in partnership with Product Support Operations to keep the support experience effective. Location This position is based in Figma’s Tokyo office.

Apr 22, 2026
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Appier logo
Full-time|On-site|Tokyo, Japan

About Appier Appier is a cutting-edge Software-as-a-Service (SaaS) firm that harnesses the power of artificial intelligence (AI) to enhance business decision-making. Established in 2012, Appier aims to democratize AI and transform it into tangible returns on investment by creating intelligent software solutions. With a presence in 17 offices across the Asia-Pacific, Europe, and the United States, Appier is publicly traded on the Tokyo Stock Exchange (Ticker number: 4180). Discover more at www.appier.com. About the Role Engage deeply with our customers to analyze their business cases, data, and constraints, ensuring optimal utilization of Appier’s AI-driven advertising solutions. Possess comprehensive knowledge of Appier’s advertising solutions, from development and service operations to sales strategies. Collaborate with Product and HQ’s Technical Solutions teams to facilitate the successful adoption of Appier's solutions, providing necessary documentation and technical support. Design customer solutions through data integration and service application recommendations. Clarify product definitions, implementations, and operations with customers while consolidating feedback for the product team. Enhance customer business outcomes by leveraging Appier’s AI capabilities and data assets. Responsibilities Guide clients through the onboarding process, ensuring timely and successful implementation of our solutions. Act as a liaison between clients and stakeholders to define project requirements, scope, schedule, and deliverables. Prepare technical specifications for developers to implement solutions. Create user and training documentation to ensure smooth operations. Troubleshoot technical issues in close collaboration with developers. Develop internal tools and scripts to optimize operations and analyze data. Facilitate feature enhancements and coordinate between clients and project managers. Analyze data to provide valuable insights to customers and internal teams. Understand the client's current status and proactively follow up based on project timelines.

Oct 6, 2025
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lilt-production logo
Full-time|Remote|Japan (Remote)

We are seeking a detail-oriented and motivated Legal & Compliance AI Evaluator fluent in Japanese to join our innovative team at Lilt. As a remote position, you will have the opportunity to work from anywhere in Japan while contributing to the development of our AI-driven solutions.Your primary responsibility will involve evaluating AI outputs to ensure they meet legal and compliance standards. You will be instrumental in enhancing the quality and accuracy of our AI systems through your expert insights.

Apr 8, 2026
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Weloglobal logo
Full-time|On-site|Japan

Weloglobal is seeking a Senior Japanese Linguist based in Japan. This position centers on providing expert linguistic services in Japanese for a range of international projects. Role overview The Senior Japanese Linguist will apply advanced knowledge of the Japanese language to support accurate and culturally appropriate communication. The work aims to maintain high standards of quality and relevance in all language-related deliverables. What you will do Deliver precise linguistic services for various projects Ensure that translations and communications reflect cultural nuances Contribute to projects serving a global client base Location This role is based in Japan.

Apr 30, 2026

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