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

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