AI Engineer

Location Tokyo
Discipline Information Technology
Job type Permanent
Salary Negotiable
Reference 56740

Department Overview

This division specializes in AI, cloud computing, data platforms, and core digital transformation technologies. The team delivers comprehensive digital transformation solutions, covering strategy and advisory services, system development, and long-term operations and maintenance.

The organization follows an AI-first philosophy and encourages collaboration across business units, as well as cross-functional skill development. This structure enables the delivery of large-scale enterprise systems that embed AI into business operations and corporate IT environments.

Project Overview

This role supports a large, long-term engagement with a major enterprise client in the construction industry. The project focuses on maintaining and operating enterprise data infrastructure and multiple business applications, while expanding AI adoption—particularly in the area of generative AI.

You will collaborate directly with client stakeholders to define effective AI use strategies and design AI-driven solutions. The responsibilities span the entire lifecycle, including proof of concept, deployment, enhancement, and ongoing operational support.

Project Structure
  • Data Infrastructure Operations Team: 20 members (4 domestic, 16 offshore)

  • Application Operations and Maintenance Team: 13 members (5 domestic, 8 offshore)

  • AI Enablement Team: 4 members (2 domestic, 2 offshore)

Including related support functions, the overall project team consists of approximately 50 members.

Role Highlights
  • Opportunity to work within a hybrid global delivery model alongside multinational teams

  • Exposure to a broad range of enterprise systems, providing insight into large-scale corporate IT environments

  • Direct client engagement as a primary vendor, enabling involvement in strategic discussions and decision-making processes

Key Responsibilities
AI Model Development
  • Design and develop AI, machine learning, and deep learning models

  • Conduct data preprocessing tasks such as cleansing and feature engineering

  • Train, evaluate, and optimize models to enhance accuracy and performance

Implementation and System Integration
  • Integrate AI models into enterprise applications and services

  • Utilize cloud-based services and APIs, primarily within AWS environments

  • Improve inference efficiency and ensure scalability of deployed solutions

Operations and Lifecycle Management
  • Continuously monitor model performance and accuracy

  • Retrain and update models using newly available data

  • Implement MLOps practices to manage the full model lifecycle

Research and Technology Selection
  • Evaluate emerging AI technologies, frameworks, and tools

  • Select optimal algorithms and architectures based on business requirements

Required Qualifications
  • Programming experience in Python, Java, or similar languages

  • Foundational knowledge of generative AI, machine learning, and deep learning

  • Strong communication skills with the ability to collaborate with both technical and non-technical stakeholders

  • Solid task prioritization and time management skills

  • Native-level proficiency in Japanese

Preferred Qualifications
  • Experience developing and deploying systems on AWS

Language Requirements
  • English reading and writing proficiency required

  • Business-level English preferred

  • English primarily used for communication with offshore teams