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

Tech Lead / Front-end 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) - Front-End Engineer
IT (PC, Web, Unix) - Fullstack Engineer
Industry Telecommunications/Information Services
Location Asia Japan Tokyo Shinjuku

Job Description ■Recruitment Background
Established in April 2023, JAPAN AI Co., Ltd. has grown rapidly through the development of products using Generative AI. At this early stage of the company's existence, it is necessary to balance the speed and quality of product development and achieve scalable design and coding.

Therefore, we are looking for a Tech Lead who can lead the growth of the product and lead the team as a technical leader in front-end development. We are looking for someone who can work with us to become a world-leading company in the use of AI from Japan.

■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 challenges in core functions and leading the development to create products that customers will choose.

■Job description
In this position, you will lead the front-end development of SaaS products that utilize Generative AI provided by our company. Your responsibilities will be to design and build highly efficient and reusable front-end systems to support complex web applications.

・UI/UX design and implementation
Design and implementation of reusable UI components
Evolution and optimization of current UI
UI/UX design and improvement to improve user experience
・Technical leadership
Lead technical decision-making for front-end development
Lead the team's development plan and manage project progress
Develop web applications using TypeScript, React, and Next.js
・Scalable system design
Implement design and coding that takes into account the scale of the product
Promote the construction of a design system and improvement of code quality
・Team building and development
Support the improvement of team members' technical skills and lead their development
Ensure psychological safety within the team and build a collaborative development environment

■Attractiveness of this position
As a front-end lead engineer, you will be involved in the following tasks in the development of new AI-based applications.

・Design and implementation of an interface that enables interactive interaction between users and generative AI
・UX design and implementation to understand the characteristics of generative AI, such as long processing times and inconsistent results, and provide it in a user-friendly manner
・Design and implementation of a system to effectively provide various types of AI-generated content such as images and voice in addition to language processing
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
Practical experience in modern front-end development: 3 years or more
Experience developing web applications using React and Next.js
Type-safe coding skills using TypeScript
Development experience using server-side rendering (SSR) and static site generation (SSG)
Experience using React hooks and state management libraries (Redux, Recoil, Context API, etc.)
Experience as a development team leader
Leadership experience of 1 year or more, with a track record of training team members and managing projects
Understanding UI/UX
UI design with an emphasis on user experience and development experience using design tools (Figma, Adobe XD, etc.)
Experience discussing UI/UX with designers and promoting product development
Awareness of code quality
Experience improving quality through code reviews and test-driven development (TDD)

■Preferred conditions
Experience in development in the 0-1 phase of a product
Experience leading technical roles such as Tech Lead: 1 year or more
Figma (and other design tools) Experience using
Experience involved in building a design system
Experience with various UI libraries
Experience building CI/CD
English (Business)
Japanese Level Business Level(JLPT Level 2 or N2)
Salary JPY - Japanese Yen JPY 8000K - JPY 16000K   
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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