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| Hiring Company | Innovation and Digital Strategy Hub |
| Location | Tokyo - 23 Wards |
| Job Type | Permanent Full-time |
| Salary | 7 million yen ~ 9 million yen |
Our client a digital engineering hub focused on building advanced technology solutions that power large-scale digital transformation. Their teams specialize in cloud architecture, AI, data engineering, blockchain, and system security—creating scalable platforms that enhance business performance and operational efficiency.
Our client is seeking a talented Data Scientist to design and deploy AI-driven solutions that power data-informed decision-making. In this role, you’ll build scalable data pipelines, develop predictive models, and collaborate with cross-functional teams to integrate analytics and machine learning into business operations. You’ll also champion best practices in data quality, governance, and ethical AI.
Key Responsibilities
Design, develop, and maintain data pipelines for structured and unstructured data sources.
Work with engineering and business teams to identify and prioritize data use cases.
Build, validate, and deploy predictive and machine learning models at scale.
Conduct exploratory data analysis and translate findings into actionable insights.
Ensure data quality, integrity, and governance across systems and platforms.
Implement scalable solutions using cloud-based and big data technologies.
Monitor model performance and perform retraining to maintain accuracy.
Document data workflows, modeling approaches, and technical decisions.
Promote responsible AI practices and support data security and compliance initiatives.
| Minimum Experience Level | Over 3 years |
| Career Level | Mid Career |
| Minimum English Level | Business Level |
| Minimum Japanese Level | Fluent |
| Minimum Education Level | Bachelor's Degree |
| Visa Status | Permission to work in Japan required |
Mandatory Qualifications:
At least 4 years of professional experience in AI system development, including the design, implementation, and deployment of AI-driven solutions addressing real-world business challenges
Proficiency in Python or Rust
Hands-on experience with Git for version control
Familiarity with Docker for containerization
Experience working with cloud platforms (preferably Microsoft Azure)
Practical experience with Large Language Models (LLMs) and Agentic AI systems
Experience deploying and managing MCP (Model Control Plane) servers or similar AI infrastructure
Ability to manage both development and maintenance tasks effectively
Strong problem-solving skills and adaptability in dynamic environments
Excellent communication and collaboration skills across cross-functional teams
Fluent Japanese (JLPT N1 or above) and business level English (TOEIC 800+)
Desired Qualifications:
Experience in developing and deploying machine learning models and AI-based solutions
Familiarity with CI/CD tools (e.g., GitHub Actions, Azure ML Pipelines)
Experience using data visualization tools (e.g., Power BI, Plotly, Dash)
Knowledge of MLOps practices and related tools
Experience with Databricks, Apache Spark, or other big data platforms
Understanding of AI ethics, fairness, and model interpretability
Exposure to multi-modal AI (e.g., integrating text, image, and audio data)
Experience in API development and integration for AI services
Familiarity with vector databases and embedding models
| Job Type | Permanent Full-time |
| Salary | 7 million yen ~ 9 million yen |
| Industry | Internet, Web Services |
| Company Type | Small/Medium Company (300 employees or less) - International Company |
| Non-Japanese Ratio | About half Japanese |