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Job ID : 1564438 Date Updated : November 5th, 2025

Data Scientist

Hiring Company Innovation and Digital Strategy Hub
Location Tokyo - 23 Wards
Job Type Permanent Full-time
Salary 7 million yen ~ 9 million yen

Work Style

Remote Work and WFH Casual Clothing Flex Time

Job Description

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.

General Requirements

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

Required Skills

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 Location

  • Tokyo - 23 Wards

Work Conditions

Job Type Permanent Full-time
Salary 7 million yen ~ 9 million yen
Industry Internet, Web Services

Job Category

Company Details

Company Type Small/Medium Company (300 employees or less) - International Company
Non-Japanese Ratio About half Japanese