Machine Learning, Engineer, Human Centered AI

TokyoEmployeemid
Data ScienceMachine Learning EngineerDataMachine LearningData & AI
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About Woven by Toyota Woven by Toyota is enabling Toyota’s once-in-a-century transformation into a mobility company. Inspired by a legacy of innovating for the benefit of others,

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Data ScienceMachine Learning EngineerDataMachine LearningData & AI
About Woven by Toyota
Woven by Toyota is enabling Toyota’s once-in-a-century transformation into a mobility company. Inspired by a legacy of innovating for the benefit of others, our mission is to challenge the current state of mobility through human-centric innovation — expanding what “mobility” means and how it serves society.

Our work centers on four pillars: AD/ADAS, our autonomous driving and advanced driver assist technologies; Arene, our software development platform for software-defined vehicles; Woven City, a test course for mobility; and Cloud & AI, the digital infrastructure powering our collaborative foundation. Business-critical functions empower these teams to execute, and together, we’re working toward one bold goal: a world with zero accidents and enhanced well-being for all.

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Toyota is redefining what it means to move. We're challenging the current state of mobility by enhancing the movement of people, goods, information and energy. Centered around three core concepts - A Living Laboratory™, Human-Centered, and Ever Evolving City™ - Woven City serves as a test course for mobility to fulfill our purpose of well-being for all.

We do this by bringing together a diverse community of people with a shared passion for the future of mobility to co-create, develop and refine innovative products and services. This cross-section of social infrastructure, mobility, and people provides a unique opportunity for inventors, residents and visitors to interact seamlessly with new technologies throughout daily life in an environment that emulates a real city.

For more information about Woven City, please visit: https://www.woven-city.global/

We are looking for experienced Machine Learning engineer/Data Scientist with strong expertise in Large Language Models (LLMs), to design and implement autonomous human-centric AI systems with a particular focus on challenges of the Japanese language and cultural context.

Our daily tasks include technical R&D, proof-of-concept (POC), system design, agentic workflows design, LLM fine-tuning and evaluation, inference optimization, and etc. Skills in modern software development and solid experiences in developing real-time, production-grade systems are necessary.

This position reports to the function leader and offers a hybrid work arrangement. Additionally, there are business trips to Woven-City several times a month.

  • Design and develop scalable LLM-based solutions for human interaction AI systems
  • Collect, curate, and prepare datasets for LLM product/services development
  • Make technical judgment and architectural decisions while working with cross-functional teams
  • Build and optimize ML/LLM pipelines from data ingestion to automated model serving
  • Master’s degree in Computer Science or a related field, or equivalent industry experience building complex AI systems
  • Strong experience in machine learning and the framework (e.g. PyTorch, HuggingFace ecosystem, etc.)
  • 4+ years of hands-on experience with Large Language Models and NLP technologies
    (e.g., transformers, prompt engineering, fine-tuning, embedding models)
  • Business level skills in English and professional proficiency in Japanese sufficient to evaluate model outputs, curate datasets, and understand regional nuances. Native status is not required.
  • Experience in product development using LLMs (i.e. AI-assistants, chatbot, conversational AI systems, etc.)
  • Higher motivation for catching up with the latest technologies
  • Quick implementation skills from the the latest research papers
  • Experience with multi-modal models combining text, vision, speech, or behavioral data
  • Familiarity with model optimization techniques (quantization, distillation, inference acceleration)
  • Location & Eligibility

    Where is the job
    Tokyo
    Hybrid — some on-site time required
    Who can apply
    Same as job location
    Listed under
    Worldwide

    Listing Details

    Posted
    April 17, 2026
    First seen
    April 17, 2026
    Last seen
    May 5, 2026

    Posting Health

    Days active
    18
    Repost count
    0
    Trust Level
    38%
    Scored at
    May 5, 2026

    Signal breakdown

    freshnesssource trustcontent trustemployer trust
    Woven By Toyota

    Woven by Toyota is transforming mobility through innovative technologies and community-focused projects to create a more connected world.

    Employees
    3k+
    Founded
    2023
    View company profile
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    Woven By ToyotaMachine Learning, Engineer, Human Centered AI