【Fullstack Engineer】AI Service Development Engineer

【About the Company】

The company has engaged in various industry AI projects. We have clients in a wide range of industries, such as finance, manufacturing, retail, food and drink, education, healthcare, manufacturers and IT communications, with hundreds of cases. The company is rated as one of the Best Ventures to Work in Japan.

Based on the knowledge and know-how of each industry obtained from this wide network, we promise innovative proposals that exceed the industry and precedent. Many intelligent talents in the world are gathering into the company now.

【Job Description】

Let's work together to create the foundation for solving all kinds of social issues with AI and implement it in society.

◆Corporate and Business Overview
With the mission of "creating a happy society through solving social issues using AI," the company is working to create a wide variety of services utilizing its proprietary AI technology and AI platform as a solution for improving labor productivity in an aging society with a declining birthrate.

The company was founded in 2016 and went public in November 2021. Business performance continues to grow year after year, especially in FY23, when the market is experiencing a tailwind due to the explosion of generative AI, with conversational AI predicted to be embedded in 40% of enterprise applications by 2024. With two companies becoming subsidiaries and one company becoming a group, the business environment is dynamically evolving, and the company is looking for more people to join its team in order to realize new services and businesses to solve social issues.

The organization for this position, the AI platform business segment, is a mainstream business of the company with annual sales exceeding 50 million yen, and at the same time, it is undergoing a period of business transformation. The company has been promoting social implementation of AI with stakeholders who can change the structure of the industry, and has accumulated a variety of assets such as AI technologies, applications, and middleware within the company. The company aims to become a "comprehensive AI business company" that transforms companies and, in turn, changes the structure of society by continuing to "deepen" the creation and provision of its own services by making maximum use of these unique assets and knowledge, and "explore" the creation of new services and businesses.

In the above AI platform business, a team will be launched in FY2024 with the mission of nurturing the seeds of products and commercializing them as services. The team will seek to commercialize multiple products from the three perspectives of needs generated in projects with customers, market-in, and technology-driven.

◆Project Examples
●Building an AI-based healthcare service with a life insurance company
・Based on the client's requirements, we built a healthcare service using AI from 0 to 1.
・Based on the functional and non-functional requirements extracted from the results of requirements definition with the client, we selected appropriate architects and technologies.
・For AI-related functions, we also involve our machine learning engineers to design the optimal architecture.
・Provide the client with technical proposals that emerge during development, and develop services that are optimized from the user's point of view.

◆Responsibilities
Specifically, you will be responsible for the following tasks

Functional design, architectural design, and technology selection based on requirement definition
Basic design, detailed design, implementation, unit testing
QA, system operation and maintenance
*The technology stack varies from project to project and from product to product.
*In the recent past, you will have opportunities to use Kotlin, Scala, TypeScript, and React.

◆Attractiveness
You can gain experience in the 0 to 1 and 1 to 10 phases of product launches, where you will work on site and in teams that are very close to the business process of defining requirements, etc.
You can gain experience working with software engineers, machine learning engineers, and designers at the field level to drive development projects forward.
You can lead the architecture and basic design of the services we provide, which may lead to a career path as a tech lead in the future.

【Working conditions & treatment】

Discretionary labor system (You can come office and go home anytime)


・Full holiday 2 day system (Saturday / Sunday) holidays
・Annual holiday over 120 days
・Refreshment holidays (5 days a weekday)
・New Year holidays
・Annual paid leave
・Return vacation (2 days a year: when family lives in a remote area over 1000 km)
・Condition leave (during trial period: 3 days)
・Marriage leave (person, child)
・Maternity leave
・Nursing care leave


・Doctoral Program Support System
・Various Social Insurance (Employee Pension, Health Insurance, Employment Insurance, Labor Accident Insurance)
・Commuting allowance (up to 35,000 yen / month)
・Business trip allowance
・Medical checkup
・Online medical consultation (first call)
・Book purchase (full company burden)
・Study session (once / weekly, during business hours)

【Required】
Experience in back-end development using Kotlin, Scala, Java, etc.
Experience in front-end development using JS, React, etc.
Experience in basic design/detail design/implementation/testing

【Preferred】
Experience in in-house product development
Experience in AWS design, construction, and operation
Experience in Swift and Python development
English communication skills (spoken/text)

【Ideal Applicants】
・Willing to make the most of my experience in development, and to work with customers from the conception and planning stages, and work all the way through to social implementation.