LLM Engineer (AI / Machine Learning) - ¥7M – ¥15M - Tokyo, Japan

LLM Engineer (AI / Machine Learning) Salary: ¥7M – ¥15M Languages: English and Japanese Location: Tokyo, Japan Experience level Junior candidates (1–2 years experience) are welcome Senior candidates with strong LLM experience are encouraged to apply We are looking for engineers to build and scale real-world applications powered by Generative AI and Large Language Models (LLMs), across industries such as finance, real estate, and enterprise SaaS. What you’ll do Design and develop LLM-based systems and applications Build data pipelines using tools such as scraping, OCR, and ETL frameworks Develop AI-driven automation tools for business use cases Improve model performance through prompt engineering and fine-tuning Collaborate on production-grade AI solutions used by global clients What we’re looking for Experience in software development (e.g. Python or similar) Exposure to LLMs or generative AI Understanding of machine learning / NLP fundamentals Nice to have: AWS, Terraform, Docker, data engineering experience What you bring Strong product mindset and customer focus Ownership and accountability for outcomes Curiosity and willingness to learn Ability to collaborate and contribute beyond your core scope Why join Work on real, production AI systems Contribute to globally scalable AI products Collaborate with international teams Build solutions that directly impact business performance