Infrastructure Engineer (JAPAN AI - Solution Team)

  • Tokyo
  • Partial Remote
  • Full-time
  • May 28, 2025
Conditions
yen-icon
¥6M ~ ¥12M /yr
location-icon
Apply from Japan Only
(You must live in Japan to apply)
Requirements
language-icon
Language Requirements
Japanese: Fluent
English: Business Level
career-icon
Minimum Experience
Senior or above

About JAPAN AI

JAPAN AI, Inc. was established in April 2023 as a group company of Geniee, Inc., a publicly listed company, with the aim of dramatically enhancing the potential of working people through AI technology. We leverage cutting-edge AI technology to drive research and development both domestically and internationally.

We focus particularly on the development of AI agents, offering innovative products and solutions utilizing large language models (LLM). This enables us to improve productivity and operational efficiency across various industries.

JAPAN AI takes advantage of the flexibility and rapid decision-making of a startup to quickly adopt the latest technologies, providing optimal solutions to clients. Our diverse team with an international perspective enhances our competitiveness in the global market.

We aim to create new value and contribute to the progress of society as a whole through the transformative power of AI. Let's lead innovation through AI and create a future where technology enables people to achieve more.

 

Why We’re Hiring

Our company is experiencing increased demand from enterprise customers, and strengthening our infrastructure foundation has become urgent due to business expansion. In particular, we need to evolve our existing environment to be more portable and scalable, building a system that can respond quickly and flexibly to our customers' diverse needs.

Against this background, we are recruiting an infrastructure engineer who can leverage their expertise and experience in the infrastructure domain as a member of the solution team to drive business growth.

 

Position

Data Engineer 
Role: Tech Lead

You will lead the design, construction, and operation of optimized individual infrastructure environments for enterprise customers. Specifically, we expect you to promote containerization and portability of existing environments and lead the migration to cloud-native architecture centered on Kubernetes. We aim for you to build robust infrastructure foundations considering security and contribute to improving the technical capabilities of the entire solution team.

 

Job Description

  • Design, construction, operation, and optimization of infrastructure environments using cloud platforms such as AWS, GCP, and Azure
  • Design, construction, and operation of Kubernetes clusters, and introduction/promotion of related container-native technologies
  • Requirements definition, design, construction, and technical support for individual infrastructure environments for enterprise clients
  • Cloud migration of existing systems and construction of hybrid environments with on-premises integration
  • Construction and improvement of CI/CD pipelines for automation and efficiency of development processes
  • System monitoring, performance tuning, and implementation of security measures
  • Infrastructure cost optimization and management
  • Rapid response to failures, root cause analysis, and formulation of recurrence prevention measures
  • Research and verification of latest technologies and knowledge sharing with the team

 

Team Structure

Approximately 65 members are part of the development organization. Development is divided into the following groups:

  • Client Solution Development
  • In-house AI SaaS Development
  • Common Infrastructure Development (Infra / Data / AI R&D)

 

Required Qualifications

  • Bachelor's or Master's degree in Computer Science, Software Engineering, Artificial Intelligence, Machine Learning, Mathematics, Physics, or related fields
  • Experience in system design, construction, and operation in Linux environments
  • Design, construction, and operation experience on at least one cloud platform (AWS, GCP, or Azure)
  • Experience in design, construction, and operation of container orchestration environments using Kubernetes
  • Deep knowledge and practical experience with container technologies (Docker, etc.)
  • Basic knowledge and practical experience in networking and security
  • Experience with Infrastructure as Code (Terraform, Ansible, etc.)
  • High security awareness and ability to design and operate secure infrastructure

 

Preferred Qualifications

  • Design, construction, and operation experience on two or more cloud platforms including AWS, GCP, or Azure
  • Infrastructure design, construction, and operation experience in on-premises environments
  • Experience in system migration projects from on-premises to cloud environments
  • Experience in infrastructure design, construction, and operation for large-scale services
  • Experience in design, construction, and operation of databases (MySQL, PostgreSQL, etc.)
  • Experience with CI/CD tools (Jenkins, GitLab CI, GitHub Actions, etc.)
  • Experience with monitoring tools (Prometheus, Grafana, Datadog, etc.)
  • Experience providing solutions for enterprise customers

 

Tech Stack

Languages: Python (for framework development), TypeScript / React / Next.js (for frontend development)
Infrastructure: GCP (containers / Kubernetes), Docker
Tools: Slack, Confluence, Linear, Google Workspace, GitHub
Work Environment: Mac (Apple Silicon), dual monitors available

 

Learning and Development Support

  • AI Tool Usage Support:
    • Company covers the cost of using AI tools such as JAPAN AI SaaS services, Curosor, CharGPT, Claude, etc.
  • Development Tool Support:
    • If a desired development tool is paid, the cost is covered (up to 30,000 yen per year)
  • Book Purchase Assistance:
    • Company covers the cost of purchasing books for learning, such as technical books (up to 30,000 yen per half-year)
  • Language Learning / Qualification Support:
    • Company covers the cost of Japanese or English learning programs and qualification acquisition
  • Refresh Allowance:
    • Company covers the cost of services used for personal refreshment (up to 5,000 yen per month)
    • e.g., gym, yoga, chiropractic, aquarium, movies, theme park tickets, etc.
  • Housing Allowance:
    • Housing allowance provided for those living in designated areas (up to 30,000 yen per month)

 

Work Style

Hybrid Work: 3 days in office, 2 days remote
Flexible working hours: Core time is negotiable
Flexibility: Future consideration for more flexible work styles is possible

 

Why You’ll Love This Role

  • You can directly contribute to business growth as an infrastructure expert in our rapidly growing enterprise solution business
  • Environment to improve skills by working with modern technology stack centered on Kubernetes
  • Opportunities to work with multiple cloud platforms (AWS, GCP, Azure) and gain broad experience
  • Discretion and fulfillment in being deeply involved in solving enterprise customer challenges and designing/building optimal infrastructure environments yourself
  • Experience working as part of the solution team, closely collaborating with other engineers and business side to achieve team results
  • Culture that actively encourages challenges with latest technology adoption and new initiatives

 

Selection Process

CV Screening → Coding test → Multiple Interviews → Final Interview
(Reference checks are required before the final interview.)

 

Additional Information

This position will initially be hired by Geniee, Inc. and then seconded to JAPAN AI, Inc. (both companies share the same location and workplace).
There is a possibility of transferring to JAPAN AI, Inc. in the future.

Geniee actively utilizes AI technology in product development and is an in-house product.

With “GENIEE SFA/CRM” and “GENIEE CHAT”, users can create automatic summarization of minutes using ChatGPT. Geniee provides AI-related functions, such as automatic email creation, that help customers improve their business efficiency and productivity. Under these circumstances, they provide implementation consulting, product provision, and services related to AI technology.

In order to further promote research and development, they’ve established a new subsidiary, “JAPAN AI Co., Ltd.” in April 2023. JAPAN AI Co., Ltd. has a purpose of “passing down Japan’s traditions and using AI to increase the potential of businesses.” They develop and provide various AI products to improve the productivity of Japanese companies and revitalize the industry. In order to develop advanced products, they also conducting research in areas such as various large-scale language models such as ChatGPT and Generative AI.

Infrastructure Engineer (JAPAN AI - Solution Team) at Geniee
APPLY NOW  ➜🇯🇵 Residents Only