Japan Invisible Agency

Are you a mathematics expert fluent in Japanese, eager to shape the future of AI? Large‑scale language models are evolving from clever chatbots into powerful engines of scientific discovery. With high‑quality training data, tomorrow's AI can democratize world‑class education, keep pace with cutting‑edge research, and streamline academic work for students and professionals everywhere. That training data begins with you—we need your expertise to help power the next generation of AI.

We're looking for mathematics specialists who live and breathe algebra, calculus, number theory, linear algebra, differential equations, statistics, geometry, mathematical logic, and discrete mathematics. You'll challenge advanced language models on topics like real and complex analysis, optimization theory, mathematical proofs, set theory, probability distributions, cryptographic algorithms, and applied mathematics—documenting every failure mode so we can harden model reasoning.

On a typical day, you will converse with the model on classroom problems and theoretical mathematics questions, verify factual accuracy and logical soundness, capture reproducible error traces, and suggest improvements to our prompt engineering and evaluation metrics.

A master's or PhD in mathematics or a closely related quantitative field is ideal; peer‑reviewed publications, teaching experience, research in pure or applied mathematics, or hands‑on experience with mathematical modeling signal fit. Clear, metacognitive communication—"showing your work"—is essential.

Ready to turn your mathematics expertise into the knowledge base for tomorrow's AI? Apply today and start teaching the model that will teach the world.

We offer a pay range of $6-to‑$65 per hour, with the exact rate determined after evaluating your experience, expertise, and geographic location. Final offer amounts may vary from the pay range listed above. As a contractor you'll supply a secure computer and high‑speed internet; company‑sponsored benefits such as health insurance and PTO do not apply.

Job title: Mathematics Specialist (Fluent in Japanese) – AI Trainer
Employment type: Contract
Workplace type: Remote
Seniority level: Mid‑Senior Level



  • Japan Invisible Agency

    Are you a mathematics expert fluent in Japanese eager to shape the future of AI Large‑scale language models are evolving from clever chatbots into powerful engines of scientific discovery With high‑quality training data tomorrow's AI can democratize world‑class education keep pac ...


  • Tokyo Alignerr ¥6,000,000 - ¥10,500,000 per year

    We are seeking a mathematician with deep training in rigorous proof construction and hands-on experience with formal proof languages—especially Lean. · This role sits at the intersection of mathematics and computer science, · focusing on translating human-written mathematical arg ...


  • Tokyo Alignerr $50 - $150

    We recruit top mathematicians and specialists to solve tasks where automated tools fail, advancing AI reliability, formalization, and high-integrity dataset creation. · ...


  • Tokyo Alignerr

    We are seeking a mathematician with deep training in rigorous proof construction and hands-on experience with formal proof languages—especially Lean.This role sits at the intersection of mathematics and computer science, focusing on translating human-written mathematical argument ...

  • STEM Specialist

    7日前


    Japan Invisible Agency

    +We're looking for STEM specialists who live and breathe mathematics, physics, chemistry, engineering, data science, computer science, · and scientific computing. · +You'll challenge advanced language models on topics like thermodynamics, · mechanics, · calculus, · statistics, · ...


  • Japan Barrington James ¥120,000 - ¥240,000 per year

    We are hiring a Quantum Algorithms Engineer to join a world-class quantum computing team pushing the boundaries of what's possible with near-term quantum systems. · PhD in physics, computer science, mathematics, or a related discipline · Original research or engineering experienc ...


  • Tokyo NVIDIA

    NVIDIA is looking for Senior Networking (ETH/IB) Solutions Architect to join its NVIDIA Infrastructure Specialist Team. · ...


  • Tokyo The JAM l People in Robotics

    We're partnering with a fast-growing robotics company to drive cross-functional execution across robotics, · software, and product.The team is scaling a next-generation multi-robot automation platform. · ...


  • Tokyo Arthrex APAC

    The Organizational Development and Training Specialist is responsible for designing implementing and evaluating programs that facilitate the professional development and continuous learning of employees including learning delivery This role focuses on enhancing organizational eff ...


  • Tokyo S&P Global Full time

    The Contributor Relations Manager will be a key member on the Contributor Research team at S&P Global Market Intelligence. · ...


  • Tokyo Snowflake

    Snowflake is about empowering enterprises to achieve their full potential — and people too. · ...


  • Tokyo Snowflake ¥1,200,000 - ¥1,800,000 per year

    Snowflake is seeking an AI Specialist who can provide hands-on expertise and support while working with technical decision makers and data scientists to design and architect AI solutions built on the Snowflake AI Data Cloud. · ...


  • Tokyo Snowflake

    Snowflake is about empowering enterprises to achieve their full potential — and people too. With a culture that's all in on impact, innovation, and collaboration, · Snowflake is the sweet spot for building big, moving fast, · and taking technology — and careers — to the next leve ...


  • Tokyo Snowflake

    We are seeking a Data Engineering Specialist to join our Applied Field Engineering team. You will provide technical leadership in working with both technical and business executives in the design and architecture of the Snowflake Cloud Data Platform. · Work directly with the sale ...


  • Tokyo AlixPartners

    AlixPartners has embraced a hybrid work model to provide flexibility and support our employees' work-life integration. Our hybrid model combines a mix of in-person (at client site or AlixPartners office) and remote working. · ...

  • Senior Auditor CRS

    2週間前


    Tokyo UL Solutions

    Execute accurate, objective and high-quality assessments by implementing all requirements indicated in the client specific procedures, · Prepare in advance by downloading and reading audit documents and protocols related to upcoming audits. · ...


  • Tokyo Google

    The Technical Account Manager Lead will be responsible for delivering Technical Account Management (TAM) services to ensure customers get the most value from their Google Cloud Platform investments.TAMs are proactively focused on increasing cloud adoption and cloud usage by provi ...


  • Tokyo RELEX Solutions Full time

    We are looking for a Business Consultant with native Japanese proficiency to join our regional consulting team. · The ideal candidate will have minimum 3–5 years of experience in supply chain planning, retail operations, or business consulting, · with strong analytical and proble ...


  • Tokyo エンワールド・ジャパン株式会社

    We are looking for a skilled and motivated data scientist to join our central Data & Analytics team. In this role, you will help our product squads generate and leverage data-driven insights to solve complex business problems and generate value. · ...


  • 〒- 東京都 千代田区, smartTrade Technologies

    Join smartTrade Technologies as a Product Analyst Client Support in Tokyo to provide exceptional technical support and consultative guidance to clients using our suite of advanced products. · Client Support: Address client queries regarding functionality and assist with troublesh ...


  • Tokyo Rakuten

    We are seeking a talented AI Solutions Engineer to join our innovative team at Rakuten's Point Platform Group. · As an AI Solutions Engineer, · You will champion the adoption and application of AI technologies to significantly improve our team's productivity. · ...