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Updated 2025-04-23
Activated 2025-04-23

Full Stack Engineer
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This posting is managed by: bloomtech.inc
Company Name Company is not publicly visible
Job Type
bloomtech.inc
IT (PC, Web, Unix) - Fullstack Engineer
IT (PC, Web, Unix) - Back-End Engineer
IT (PC, Web, Unix) - Front-End Engineer
Industry Telecommunications/Information Services
Location Asia Japan Tokyo Shinjuku

Job Description ■Recruitment background
As we expect rapid business expansion, we are looking for a full-stack engineer who can lead research and development and product implementation in advanced technical fields.

In particular, in order to promote research and large-scale development in the AI agent field, we urgently need to increase the number of engineers responsible for core framework development of the backend.

■Expected role
In this position, you will join the development team as a full-stack engineer who will lead our AI products. You will be responsible for solving advanced technical issues in core functions and leading development to create products that customers will choose.

■Job description
You will be responsible for developing SaaS applications that utilize generative AI. You will design and build highly efficient and reusable systems, and develop complex web applications.

[Specific duties]

Product development using LLM:
Design and development of products using large-scale language models (LLM)
API integration project:
Promoting a project to integrate multiple APIs and generate new APIs
Design and implementation:
Design and implementation with consideration for performance and maintainability
Web application development:
Front-end development using TypeScript and Next.js

■Attractiveness of this position
Opportunity to come into contact with cutting-edge technology:
Deepen your technical knowledge by utilizing the latest technologies such as Generative AI and LLM
Creative environment:
Design and develop products with free ideas and provide user-friendly products
Opportunity for growth:
Ample opportunities for career advancement at a rapidly growing startup
Feeling of contribution:
By developing in a small, elite team, your opinions and ideas are reflected in the product
Company Info [About JAPAN AI Co., Ltd.]
Geniee actively uses AI technology in product development, and in its own products "GENIEE SFA/CRM" and "GENIEE CHAT", it provides AI-related functions that lead to improved business efficiency and productivity for customers, such as automatic summary of minutes and automatic creation of emails using ChatGPT.

In this situation, the Group established a new subsidiary, "JAPAN AI Co., Ltd.," on April 11, 2023 to further promote implementation consulting, product provision, and research and development related to AI technology.

JAPAN AI Co., Ltd. has the purpose of "inheriting Japan and exploding the potential of working people with AI", and promotes research and development of cutting-edge AI technologies both domestically and internationally to improve the productivity of Japanese companies and revitalize industry, and provides various product solutions using cutting-edge technologies such as large-scale language models (LLMs) and AI agents.
Working Hours Flextime system
Job
Requirements		 ■Requirements
A bachelor's or master's degree in computer science, artificial intelligence, machine learning or a related field is required.
Development experience in web application development using modern frameworks: 3 years or more
Server-side implementation experience: 2 years or more
Implementation experience in at least one backend language (Python, Java, etc.)
Experience with cloud services (AWS, GCP, Azure) and understanding of container technology (Docker, Kubernetes)

■Preferred conditions
Experience in developing SaaS web applications
Experience in designing and building large-scale and complex architectures
Basic understanding and interest in generative AI
Able to keep up with the latest technology trends and contribute knowledge and know-how to the organization
Japanese Level Business Level(JLPT Level 2 or N2)
Salary JPY - Japanese Yen JPY 6000K - JPY 12000K   
Other Salary
Description		 Social Insurance
Holidays Five-Day Workweek
Winter Holidays
Paid Holidays
Child-care Leave
Job Contract
Period		 Full-time employment
Nearest Station Shinjuku-ku, Tokyo
*Hybrid work
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