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I am an AI professional with 2+ years of hands-on AI training experience, backed by a solid economics background from Aoyama Gakuin University. I bridge human feedback and model performance, delivering high-quality annotated data and reliable evaluation to improve instruction-following and reasoning in LLMs. Beyond AI work, I have entrepreneurial experience running independent export operations and B2B sales in Japan, which sharpened my analytical mindset, cross-cultural communication, and data-driven decision-making. I am fluent in Japanese and English and excited to contribute to the next generation of AI systems.…I am an AI professional with 2+ years of hands-on AI training experience, backed by a solid economics background from Aoyama Gakuin University. I bridge human feedback and model performance, delivering high-quality annotated data and reliable evaluation to improve instruction-following and reasoning in LLMs. Beyond AI work, I have entrepreneurial experience running independent export operations and B2B sales in Japan, which sharpened my analytical mindset, cross-cultural communication, and data-driven decision-making. I am fluent in Japanese and English and excited to contribute to the next generation of AI systems.

user1684983

AI Engineer, Data Scientist, AI Developer, +2

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I am an AI professional with 2+ years of hands-on AI training experience, backed by a solid economics background from Aoyama Gakuin University. I bridge human feedback and model performance, delivering high-quality annotated data and reliable evaluation to improve instruction-following and reasoning in LLMs. Beyond AI work, I have entrepreneurial experience running independent export operations and B2B sales in Japan, which sharpened my analytical mindset, cross-cultural communication, and data-driven decision-making. I am fluent in Japanese and English and excited to contribute to the next generation of AI systems.…I am an AI professional with 2+ years of hands-on AI training experience, backed by a solid economics background from Aoyama Gakuin University. I bridge human feedback and model performance, delivering high-quality annotated data and reliable evaluation to improve instruction-following and reasoning in LLMs. Beyond AI work, I have entrepreneurial experience running independent export operations and B2B sales in Japan, which sharpened my analytical mindset, cross-cultural communication, and data-driven decision-making. I am fluent in Japanese and English and excited to contribute to the next generation of AI systems.

Available to hire

I am an AI professional with 2+ years of hands-on AI training experience, backed by a solid economics background from Aoyama Gakuin University. I bridge human feedback and model performance, delivering high-quality annotated data and reliable evaluation to improve instruction-following and reasoning in LLMs.

Beyond AI work, I have entrepreneurial experience running independent export operations and B2B sales in Japan, which sharpened my analytical mindset, cross-cultural communication, and data-driven decision-making. I am fluent in Japanese and English and excited to contribute to the next generation of AI systems.

Skills

Experience Level

Expert

Expert

Intermediate

Intermediate

Intermediate

Language

Japanese

Fluent

English

Fluent

Work Experience

Sales Representative at DYM Co., Ltd.

April 1, 2025 - Present

Engaged in B2B sales activities, developing client relationships and driving revenue growth. Communicated effectively across diverse industries, applying cross-cultural and interpersonal skills. Applied analytical thinking to identify client needs and propose tailored solutions.

AI Trainer / RLHF Specialist at AI Training Project

January 1, 2022 - January 1, 2024

Designed and executed high-quality annotation tasks to improve LLM instruction-following and reasoning. Evaluated model outputs across diverse domains, providing nuanced preference rankings and detailed rationale. Collaborated cross-functionally with researchers to refine labeling guidelines and calibrate inter-annotator agreement. Contributed bilingual (EN/JA) datasets, expanding model coverage for Japanese-language use cases. Maintained consistent throughput and quality metrics across 2,000+ annotation sessions.

Sole Proprietor — Export Operations at Independent Business

January 1, 2022 - Present

Founded and operated an independent export business sourcing Japanese goods for international buyers. Managed end-to-end logistics: supplier sourcing, customs documentation, international shipping, and payment reconciliation. Built a client base across multiple countries, demonstrating cross-cultural communication in English. Applied data-driven decision-making to inventory selection and pricing strategy, improving margins by iterative analysis.